Return-Path: X-Processed-By: Virex 7 on prxy.net X-Real-To: stagecraftlist [at] theatrical.net Received: by prxy.net (CommuniGate Pro PIPE 4.2.10) with PIPE id 21424177; Sun, 27 Mar 2005 03:01:26 -0800 X-ListServer: CommuniGate Pro LIST 4.2.10 List-Unsubscribe: List-ID: Message-ID: From: "Stagecraft" Sender: "Stagecraft" To: "Stagecraft" Precedence: list Subject: Stagecraft Digest #344 Date: Sun, 27 Mar 2005 03:01:02 -0800 MIME-Version: 1.0 Content-Type: text/plain; charset="ISO-8859-1" Content-Disposition: inline X-Spam-Checker-Version: SpamAssassin 3.0.2 (2004-11-16) on prxy.net X-Spam-Status: No, score=-5.6 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00 autolearn=ham version=3.0.2 X-Spam-Level: X-TFF-CGPSA-Version: 1.4f2 X-prxy-Spam-Filter: Scanned For info, archives & UNSUBSCRIBE, see --------------------------------------------------- Stagecraft Digest, Issue #344 1. Re: Projector Issues by Villem Teder 2. Re: A/C Power Cable by "Bll Conner" 3. Re: A/C Power Cable / Name that Amperage by IAEG [at] aol.com 4. Re: panel discussion by "Paul Guncheon" 5. Re: Ring 2100 by "Paul Guncheon" 6. Re: Where can I access the archives and a Marley question by "Josh Ratty" 7. Re: Where can I access the archives and a Marley question by IAEG [at] aol.com 8. Re: Where can I access the archives and a Marley question by "Andy Leviss" 9. Re: Where can I access the archives and a Marley question by IAEG [at] aol.com 10. Re: panel discussion by Stephen Litterst 11. Re: Projector Issues by Stephen Litterst 12. Re: Where can I access the archives and a Marley question by Dale Farmer 13. Re: Projector Issues by Noah Price 14. Re: A/C Power Cable / Name that Amperage by Eddie Kramer 15. Re: A/C Power Cable by Steve Larson 16. Re: a Marley question by Mark O'Brien 17. Re: panel discussion by Eddie Kramer 18. Re: A/C Power Cable by FrankWood95 [at] aol.com 19. Re: Laptop Battery (OT) by FrankWood95 [at] aol.com 20. Re: A/C Power Cable / Name that Amperage by FrankWood95 [at] aol.com 21. Re: Where can I access the archives and a Marley question by "Josh Ratty" 22. Re: Where can I access the archives and a Marley question by Stephen Litterst 23. Re: panel discussion by Bill Sapsis 24. Re: Projector Issues by Michael Feinberg 25. Re: Where can I access the archives and a Marley question by IAEG [at] aol.com 26. Re: Where can I access the archives and a Marley question by IAEG [at] aol.com 27. Re: Somewhat delicate reference question by "Jeremiah Minh Greenblatt" 28. Re: Where can I access the archives and a Marley question by IAEG [at] aol.com 29. Re: Projector Issues by Boyd Ostroff 30. Re: Where can I access the archives and a Marley question by "Josh Ratty" 31. Re: Where can I access the archives and a Marley question by IAEG [at] aol.com 32. Re: Where can I access the archives and a Marley question by Brian Munroe 33. Re: Projector Issues by "ladesigners [at] juno.com" 34. Re: Where can I access the archives and a Marley question by Stephen Litterst 35. Economy of Momentum (was: Re: Lifting pianos revisited) by CB 36. Re: A/C Power Cable / Name that Amperage by Stuart Wheaton 37. Re: panel discussion by Eddie Kramer 38. Re: A/C Power Cable / Name that Amperage by "Jeffrey E. Salzberg" 39. Re: A/C Power Cable / Name that Amperage by "Andy Leviss" 40. Re: Projector Issues by FrankWood95 [at] aol.com 41. Re: Where can I access the archives and a Marley question by FrankWood95 [at] aol.com 42. Re: A/C Power Cable / Name that Amperage by FrankWood95 [at] aol.com 43. Re: Where can I access the archives and a Marley question by IAEG [at] aol.com 44. Re: A/C Power Cable / Name that Amperage by FrankWood95 [at] aol.com 45. Re: A/C Power Cable / Name that Amperage by "Andy Leviss" 46. Re: A/C Power Cable / Name that Amperage by "ladesigners [at] juno.com" 47. Speaking of Genies by 48. Re: A/C Power Cable / Name that Amperage by "Occy" 49. Nicopress Sleeves by "Robert Barnwell" 50. Re: rigging spreadsheet by David d'Anjou 51. City Politics by "Chris Warner" 52. Re: Laptop Battery (OT) by Dale Farmer 53. Re: A/C Power Cable / Name that Amperage by Dale Farmer 54. Re: A/C Power Cable / Name that Amperage by "Occy" *** Please update the subject line of your reply to use the subject *** line of the message you are replying to! Please only reply to *** one message subject in each reply. ---------------------------------------------------------------------- Message-Id: <3.0.6.32.20050326063213.007fed10 [at] mail.interlog.com> Date: Sat, 26 Mar 2005 06:32:13 -0500 From: Villem Teder Subject: Re: Projector Issues Being an LCD, it might well have a convergence problem. I don't think I've ever heard of a colour projector with only one LCD panel, unlike DLP. While the panels may be converged as far as the image looks, there may be other problems in the optical path. One place to start looking, if Eiki doesn't have such info on their site, is at Sanyo's site. Somewhere in support there is a page for FAQs. I seem to recall there were several items there for problems in the image, most of which required a trip to a service depot. You should definately call Eiki or at least your vendor. I think there was a forum or mailing list for AV folks, but I'm having memory problems this early in the morning. Google should help. I'll try looking for more info later. Regards, Villem Teder Toronto ------------------------------ Message-ID: <000901c5320d$fbcdcf60$6601a8c0 [at] BCA1> Reply-To: "Bll Conner" From: "Bll Conner" Subject: Re: A/C Power Cable Date: Sat, 26 Mar 2005 08:13:22 -0600 "Between this and the "Wild Leg" question at USITT, do we need to have Eddie chair a "Stump the Electrician" panel next year?" That might possibly be Eddie, Mitch Heftner, Ken Vannice, and Steve Terry? Someone bring some adult beverages please. Regards, Bill ------------------------------ From: IAEG [at] aol.com Message-ID: <1c1.24f50503.2f76c96c [at] aol.com> Date: Sat, 26 Mar 2005 09:19:24 EST Subject: Re: A/C Power Cable / Name that Amperage In a message dated 3/26/05 9:14:23 AM, bill-conner [at] att.net writes: << "Between this and the "Wild Leg" question at USITT, do we need to have Eddie chair a "Stump the Electrician" panel next year?" That might possibly be Eddie, Mitch Heftner, Ken Vannice, and Steve Terry? Someone bring some adult beverages please. >> how about a "Name that Amperage" contest, , contestants hold one wire in one hand, , another in the remaining hand, , and makes wagers " i can name that amperage in three jolts" then a response "I can name that amperage in two jolts ! " imagine the fun ! this would all be supervized by someone from the Florida Division of Corrections no doubt Whose motto is, , How do you like your justice? Regular or Extra Crispy?" very best, Keith Arsenault ------------------------------ Date: Sat, 26 Mar 2005 05:18:08 -1000 From: "Paul Guncheon" Subject: Re: panel discussion Message-id: <002201c53217$0575f3e0$0202a8c0 [at] yourxhtr8hvc4p> References: <> If you tie a knot in both ends (recommended), and unplug it, you now have a battery. The fatter the wire, the bigger the battery. Laters, Paul 'My name is Tom Riley' said Tom wryly ------------------------------ Date: Sat, 26 Mar 2005 05:22:10 -1000 From: "Paul Guncheon" Subject: Re: Ring 2100 Message-id: <002301c53217$95385220$0202a8c0 [at] yourxhtr8hvc4p> References: > A couple of days ago Tom Craven said that he hadn't received the Ring2100 > messages. Forgive my ignorance, but WTF is a "Ring2100 message"? This was covered completely in the Ring 2000 memo... c'mon, try and keep up. Laters, Paul "Hey fella! Yes, you! How come you're darker than me?!" screamed Tom, going off at a tangent. ------------------------------ Date: Sat, 26 Mar 2005 11:39:11 -0500 From: "Josh Ratty" Subject: Re: Where can I access the archives and a Marley question Message-id: <007701c53222$58b17970$5901a8c0 [at] Rattys> References: Not sure how much of your floor is covered with the scuffs but we've had good luck simply scuffing it using shoes that don't leave marks. Just kick your foot over the spot a few times and it'll rub off. We had a crew member with black rubber soles kick out our Marley once. I think he made through 2 of 3 rolss before we realized it. Good luck. Josh Ratty > > I have to remove black shoe scuff marks from the > marley (since I opened my big mouth and pointed it out > to the choreograhper). > > What is the easiest, most non-toxic way to do this? I > know pencil erasers do well on our grey marley. > > Thanks, > > Al Fitch > > Be Kind, Smile and Have Fun. ------------------------------ From: IAEG [at] aol.com Message-ID: Date: Sat, 26 Mar 2005 11:56:24 EST Subject: Re: Where can I access the archives and a Marley question In a message dated 3/26/05 11:40:23 AM, josh.ratty [at] verizon.net writes: << We had a crew member with black rubber soles kick out our Marley once >> once again, , never, , never "kick" out a vinyl floor on one of my shows or you will incur my eternal wrath ! very best, Keith Arsenault IAEG - International Arts & Entertainment Group Tampa, Florida ------------------------------ From: "Andy Leviss" Subject: RE: Where can I access the archives and a Marley question Date: Sat, 26 Mar 2005 10:02:03 -0500 Organization: Duck's Echo Sound Message-ID: <000801c53214$c56c48f0$a19afea9 [at] AndyLeviss> In-Reply-To: Keith wrote: > never, , never "kick" out a vinyl floor on one of my shows or > you will incur > my eternal wrath ! Out of curiosity, how do you prefer to stretch out the floor (asks the humble sound guy, who only stands idly by playing with his speakers while the propfolk do their little dance)? --Andy http://OneFromTheRoad.com Tools, Toys, and Tales for the Theatrical Technician -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.308 / Virus Database: 266.8.2 - Release Date: 3/25/2005 ------------------------------ From: IAEG [at] aol.com Message-ID: <1e0.38c34d98.2f76f100 [at] aol.com> Date: Sat, 26 Mar 2005 12:08:16 EST Subject: Re: Where can I access the archives and a Marley question In a message dated 3/26/05 12:01:42 PM, Andy [at] DucksEchoSound.com writes: << Out of curiosity, how do you prefer to stretch out the floor (asks the humble sound guy, who only stands idly by playing with his speakers while the propfolk do their little dance)? >> laying them out, , , taping one end, , two people on hands and knees at opposite end, , and pulling / stretching straight across, , one person eyeballing, , when flat ( and straight! that's another story, , if you don't pull evenly it will go concave on one side, , convex on the other ) the person eyeballing stands with feet apart on the end where it was being pulled from while that end is taped down "kicking" scuffs the floor, , and doesn' actually pull the wrinkles out,, it stretches and releases, , stretches and releases, , all while at least one or more people are standiing on it ( think about that, , ok? ) actually damages many of the thinner floors once all the off stage ends are taped , , and hopefully someone has eyeballed it properly and the nice neat and minimal gap is maintained between panels THEN run the seams. of course it's nice when you have a heavy duty and heavy weight floor that doesn't require any of this, , but that's usually not the case. i have made floors that owners have said were "unusable" perfectly flat and smooth using the above method, , it helps if you can roll the floor out and let it sit over night, but that's pretty much a given! very best, Keith Arsenault IAEG - International Arts & Entertainment Group Tampa, Florida ------------------------------ Date: Sat, 26 Mar 2005 12:18:40 -0500 From: Stephen Litterst Subject: Re: panel discussion Message-id: <42459970.D824B2B3 [at] ithaca.edu> Organization: IC-Dept. of Theatre Arts References: Bill Sapsis wrote: > --------------------------------------------------- > Me? On an electrical panel? I don't think so. Remember? I told you guys > a long time ago. I'm the one who ties an extension cord in a knot so the > electricity doesn't run out when I'm not using it. You can be the guy in the crowd throwing out the questions hard and fast. Maybe you can get some of the prizes you've given Eddie back. :) Steve Litterst -- Stephen C. Litterst Technical Supervisor Ithaca College Dept. of Theatre Arts 607/274-3947 slitterst [at] ithaca.edu ------------------------------ Date: Sat, 26 Mar 2005 12:22:01 -0500 From: Stephen Litterst Subject: Re: Projector Issues Message-id: <42459A39.8A9F9FE9 [at] ithaca.edu> Organization: IC-Dept. of Theatre Arts References: Villem Teder wrote: > > For info, archives & UNSUBSCRIBE, see > --------------------------------------------------- > > Being an LCD, it might well have a convergence problem. I don't think I've > ever heard of a colour projector with only one LCD panel, unlike DLP. While > the panels may be converged as far as the image looks, there may be other > problems in the optical path. Alternatively, since the lines are red and green, there may be a problem within those panels. If DLP projectors only have one panel, how do they do colour? I had always assumed they also had three panels and the colors were combined at the lens. Steve Litterst -- Stephen C. Litterst Technical Supervisor Ithaca College Dept. of Theatre Arts 607/274-3947 slitterst [at] ithaca.edu ------------------------------ Message-ID: <42459E65.486C0EF5 [at] cybercom.net> Date: Sat, 26 Mar 2005 12:39:50 -0500 From: Dale Farmer Organization: The fuzz in the back of the fridge. Subject: Re: Where can I access the archives and a Marley question References: IAEG [at] aol.com wrote: > For info, archives & UNSUBSCRIBE, see > --------------------------------------------------- > > In a message dated 3/26/05 12:01:42 PM, Andy [at] DucksEchoSound.com writes: > > << Out of curiosity, how do you prefer to stretch out the floor (asks the > humble sound guy, who only stands idly by playing with his speakers > while the propfolk do their little dance)? >> > > laying them out, , , taping one end, , two people on hands and knees at > opposite end, , and pulling / stretching straight across, , one person > eyeballing, , when flat ( and straight! that's another story, , if you don't pull > evenly it will go concave on one side, , convex on the other ) the person > eyeballing stands with feet apart on the end where it was being pulled from while that > end is taped down > > "kicking" scuffs the floor, , and doesn' actually pull the wrinkles out,, it > stretches and releases, , stretches and releases, , all while at least one or > more people are standiing on it ( think about that, , ok? ) actually > damages many of the thinner floors > > once all the off stage ends are taped , , and hopefully someone has eyeballed > it properly and the nice neat and minimal gap is maintained between panels > THEN run the seams. > > of course it's nice when you have a heavy duty and heavy weight floor that > doesn't require any of this, , but that's usually not the case. > > i have made floors that owners have said were "unusable" perfectly flat and > smooth using the above method, , it helps if you can roll the floor out and let > it sit over night, but that's pretty much a given! Or just lay down over lunch break while the stage lighting is shined on it to warm it up a bit. --Dale ------------------------------ In-Reply-To: References:

Message-Id: From: Noah Price Subject: Re: Projector Issues Date: Sat, 26 Mar 2005 09:46:34 -0800 On Mar 26, 2005, at 9:22 AM, Stephen Litterst wrote: > If DLP projectors only have one panel, how do they do colour? I had > always assumed they also had three panels and the colors were combined > at the lens. In theatrical terms, they use an RGB color wheel :-) Here are a few sites that describe DLP technology and how color is projected: Noah -- | Noah Price | http://stagecraft.theprices.net/ | | Stagecraft Mailing List | stagecraft-web [at] theprices.net | ------------------------------ Message-Id: In-Reply-To: References: Date: Sat, 26 Mar 2005 13:07:11 -0500 From: Eddie Kramer Subject: Re: A/C Power Cable / Name that Amperage On 3/26/05 IAEG [at] aol.com sent: >how about a "Name that Amperage" contest, contestants hold one wire in one hand, another in the remaining hand, and ... Keith - Wickedly funny and the last part is subversively so. I was thinking we zap the panel if they get stumped, or the quester if an answer is forthcoming. Eddie PS. Do we need to change the subject to: "Stump (or Zap) the electrician" ? -- -------------------- Eddie Kramer IATSE #1 Member NEC Panel 15 ------------------------------ Date: Sat, 26 Mar 2005 13:07:19 -0500 Subject: Re: A/C Power Cable From: Steve Larson Message-ID: In-Reply-To: Is it safe to use the words chair and electrician in the same sentence? sjl > From: "Bll Conner" > Reply-To: "Stagecraft" > Date: Sat, 26 Mar 2005 08:13:22 -0600 > To: "Stagecraft" > Subject: Re: A/C Power Cable > > For info, archives & UNSUBSCRIBE, see > --------------------------------------------------- > > "Between this and the "Wild Leg" question at USITT, do we need to have Eddie > chair a "Stump the Electrician" panel next year?" > > That might possibly be Eddie, Mitch Heftner, Ken Vannice, and Steve Terry? > Someone bring some adult beverages please. > > Regards, Bill > > > ------------------------------ In-Reply-To: References:

Message-Id: <7671d64bab8bf5d509422946548d50d4 [at] email.arizona.edu> Cc: marko [at] email.arizona.edu (Mark O'Brien) From: Mark O'Brien Subject: Re:a Marley question Date: Sat, 26 Mar 2005 11:10:07 -0700 For Super-bowl XXX... We laid a white Marley floor on the half-time stage. We made a 1/8" luan cover for the whole stage, taped together for rehearsal. The night before the game, the choreographer decided he -MUST- rehearse on the marley. After many objections, we stripped the luan cover and they rehearsed with the dancers wearing black combat boots. It took 10 people, 4 hours, on game day to scrub the floor with brake-clean to get -most- of the marks off. Dumb sh*t... Mark O'Brien Opera Technical Director University of Arizona, School of Music Tucson, AZ 520/621-7025 520/591-1803 Mobile ------------------------------ Message-Id: In-Reply-To: References:

Date: Sat, 26 Mar 2005 13:11:49 -0500 From: Eddie Kramer Subject: Re: panel discussion On 3/26/05 Stephen Litterst sent: >Maybe you can get some of the prizes you've given Eddie back. :) Bill still owes me my prize from this year. Eddie -- -------------------- Eddie Kramer IATSE #1 Member NEC Panel 15 ------------------------------ From: FrankWood95 [at] aol.com Message-ID: <1a5.3407363d.2f7704fc [at] aol.com> Date: Sat, 26 Mar 2005 13:33:32 EST Subject: Re: A/C Power Cable In a message dated 26/03/05 01:45:15 GMT Standard Time, ESKramer [at] earthlink.net writes: > PS Yes Frank, I know the cables are better in England :-) so please don't > post about it. I wasn't going to. What I was going to say was that the cable must be rated to the full capacity of the overcurrent protecion at the supply end. Frank Wood ------------------------------ From: FrankWood95 [at] aol.com Message-ID: <145.42571ee5.2f770a35 [at] aol.com> Date: Sat, 26 Mar 2005 13:55:49 EST Subject: Re: Laptop Battery (OT) In a message dated 26/03/05 08:42:21 GMT Standard Time, jdurand [at] interstellar.com writes: > Now if you could just get the CPSC to quit trying to put us legal fireworks > people out of business (and doing a pretty good job of it) and actually ban > some of the dangerous batteries and other products... > > If they were effective, there wouldn't be exploding batteries all over. How do you get exploding batteries, without doing bad things to them? I've seen it done, with a short circuit, and done it myself when experimenting with fast charge systems. Either can lead to internal overheating, then high internal gas pressures, and then you're scraping bits of battery off the walls. You can also manage it with a battery pack with a duff cell in it, on a fast charger. But, used within the manufacturer's specifications, they are normally quite peaceful. Mind, in an old-fashioned central battery telephone exchange, it was forbidden to take a metal ladder into the battery room. We're talking of 50V worth of high capacity lead-acid cells, in a room maybe 20' long and 10'wide. The pyrotechnics caused by dropping a metal ladder onto the exposed terminals would be very spectacular. Frank Wood ------------------------------ From: FrankWood95 [at] aol.com Message-ID: <155.4d5ca8aa.2f770ef3 [at] aol.com> Date: Sat, 26 Mar 2005 14:16:03 EST Subject: Re: A/C Power Cable / Name that Amperage In a message dated 26/03/05 14:20:17 GMT Standard Time, IAEG [at] aol.com writes: > how about a "Name that Amperage" contest, , > > contestants hold one wire in one hand, , another in the remaining hand, , > and > makes wagers > > " i can name that amperage in three jolts" > > then a response > > "I can name that amperage in two jolts ! " > > imagine the fun ! Amusing. Can't be done, though. The 'jolt' depends on the voltage, and on your personal characteristics (dry skin, damp skin, internal resistance, and so on). You can kill yourself just as dead off a 1A circuit as off a 20A circuit, at the same voltage. Some people are fairly immune, even to our 230V. I am myself. If I catch a packet, I take my fingers away fast, speak a few profane words, and carry on with more care. But there are people who would have been killed, and others who whould have needed an emergency crew, fast (within four minutes), with a defibrillator. I know I sound like an old sour-puss, but I don't believe in taking liberties with potentially lethal things. The trouble is, by the time you have found out that it's lethal for you, it's too late. Frank Wood ------------------------------ Date: Sat, 26 Mar 2005 14:34:47 -0500 From: "Josh Ratty" Subject: Re: Where can I access the archives and a Marley question Message-id: <01cd01c5323a$dfaa5060$5901a8c0 [at] Rattys> References: well we don't soley kick it out, we also have people pulling on the ends that pull out the slack as it's kicked out. I'm not on the props crew or anything, just and observant and occaissionally helpful carp. This is actually my first time with marley, so it's the only way i've ever seen it done. The idea of doing it successfully with out kicking sounds interesting, my only concern is that if it isn't tight enough we'd have problems as we have some heaving rolling scenery that crosses it. Josh Ratty > laying them out, , , taping one end, , two people on hands and knees at > opposite end, , and pulling / stretching straight across, , one person > eyeballing, , when flat ( and straight! that's another story, , if you don't pull > evenly it will go concave on one side, , convex on the other ) the person > eyeballing stands with feet apart on the end where it was being pulled from while that > end is taped down > > "kicking" scuffs the floor, , and doesn' actually pull the wrinkles out,, it > stretches and releases, , stretches and releases, , all while at least one or > more people are standiing on it ( think about that, , ok? ) actually > damages many of the thinner floors > > once all the off stage ends are taped , , and hopefully someone has eyeballed > it properly and the nice neat and minimal gap is maintained between panels > THEN run the seams. > > of course it's nice when you have a heavy duty and heavy weight floor that > doesn't require any of this, , but that's usually not the case. > > i have made floors that owners have said were "unusable" perfectly flat and > smooth using the above method, , it helps if you can roll the floor out and let > it sit over night, but that's pretty much a given! > > > very best, > > Keith Arsenault > > IAEG - International Arts & Entertainment Group > Tampa, Florida ------------------------------ Date: Sat, 26 Mar 2005 14:43:21 -0500 From: Stephen Litterst Subject: Re: Where can I access the archives and a Marley question Message-id: <4245BB59.64B01DEC [at] ithaca.edu> Organization: IC-Dept. of Theatre Arts References:

Josh Ratty wrote: > --------------------------------------------------- > well we don't soley kick it out, we also have people pulling on the ends > that pull out the slack as it's kicked out. I'm not on the props crew or > anything, just and observant and occaissionally helpful carp. I've stomped/kicked out every marley floor I've rolled out. I haven't noticed any damage to the floors (well, one was so crappy I'm not sure we would have been able to damage it.) We usually averaged 3"-6" of elongation during the process so we were certainly doing more stretching than releasing. What I find counter-productive is the process of "hopping" the floor. Where the big carpenters jump along the floor with both feet together. If you watch closely you can actually see them push the floor back as they take off. Darn that Newton and his laws. As always, Your Mileage May Vary. Check with the owner of the floor to see how they prefer to have it stretched. Steve Litterst -- Stephen C. Litterst Technical Supervisor Ithaca College Dept. of Theatre Arts 607/274-3947 slitterst [at] ithaca.edu ------------------------------ Date: Sat, 26 Mar 2005 15:12:31 -0500 Subject: Re: panel discussion From: Bill Sapsis Message-ID: In-Reply-To: on 3/26/05 1:11 PM, Eddie Kramer at ESKramer [at] earthlink.net wrote: > Bill still owes me my prize from this year. Not fair. You walked out of the room before I could give it to you. What size? I'll send it to RCMH Bill S. www.sapsis-rigging.com 800.727.7471 800.292.3851 fax 267.278.4561 mobile Please support the Long Reach Long Riders on their 2nd annual benefit ride http://sapsis-rigging.com/LRLR.html ------------------------------ Message-Id: In-Reply-To: References:

Date: Sat, 26 Mar 2005 15:29:22 -0500 From: Michael Feinberg Subject: Re: Projector Issues >>If DLP projectors only have one panel, how do they do colour? I had >>always assumed they also had three panels and the colors were combined >>at the lens. >In theatrical terms, they use an RGB color wheel :-) Just to clarify, though the info is in the links that Noah posted, DLP/DMD comes in both 1-chip and 3-chip varieties. Single chip DLP alternately produces the red/green/blue portions of the image separately and passes them through one section spinning tri-color filter to colorize them. If I recall this happens around 120Hz, but some feel that they can still perceive the flicker inherent in alternating between the three pictures. More expensive three chip DLP uses separate chips for the three colors each with their own fixed color filter filter, so that the entire image is produced simultaneously. Until recently the pro market was dominated by three chip DLP, with single chip relegated to home theatres, but in the last year or so, a number of high quality competitively priced single-chip DLP projectors have come out. As previously noted, because it is a reflective technology and not a transmissive one, DLP doesn't suffer burn in like LCD does and also tends to have a faster response rate for video, but as all of the chips are be manufactured under Texas Instruments's patents, there are fewer options available. -- -Michael Feinberg, CTS ------------------------------ From: IAEG [at] aol.com Message-ID: <1e2.38889660.2f772393 [at] aol.com> Date: Sat, 26 Mar 2005 15:44:03 EST Subject: Re: Where can I access the archives and a Marley question In a message dated 3/26/05 2:35:22 PM, josh.ratty [at] verizon.net writes: << The idea of doing it successfully with out kicking sounds interesting, my only concern is that if it isn't tight enough we'd have problems as we have some heaving rolling scenery that crosses it. >> i am quite confident that KICKING it only adds to puckers and the like and does practically NOTHING to making the floor lay flat, , it makes a lot of old timers stage hands feel like they are doing something, but I never allow it very best, Keith Arsenault IAEG - International Arts & Entertainment Group Tampa, Florida ------------------------------ From: IAEG [at] aol.com Message-ID: <199.3bbc35f0.2f772434 [at] aol.com> Date: Sat, 26 Mar 2005 15:46:44 EST Subject: Re: Where can I access the archives and a Marley question In a message dated 3/26/05 12:40:19 PM, dale [at] cybercom.net writes: << Or just lay down over lunch break while the stage lighting is shined on it to warm it up a bit. --Dale >> yep , , that will do it, , anyone remember DANCIN' on Broadway ? as the audience entered the electrics were in the down position, , and on, , I assume drying the floor that was just mopped and they were drying it out, the show started with the audience hearing over the P A the SM calling the pre show ques, , including flying the electrics out very best, Keith Arsenault IAEG - International Arts & Entertainment Group Tampa, Florida ------------------------------ From: "Jeremiah Minh Greenblatt" Subject: RE: Somewhat delicate reference question Date: Sat, 26 Mar 2005 15:47:50 -0500 Message-ID: <000a01c53245$16690240$0300a8c0 [at] Roadbox> In-Reply-To: "This has been an interesting thread with lots of valid observations." I couldn't agree more. Thanks again for all the advice and discussion. - J.Minh ------------------------------ From: IAEG [at] aol.com Message-ID: <1ec.37c59aff.2f772505 [at] aol.com> Date: Sat, 26 Mar 2005 15:50:13 EST Subject: Re: Where can I access the archives and a Marley question In a message dated 3/26/05 2:44:08 PM, slitterst [at] ithaca.edu writes: << What I find counter-productive is the process of "hopping" the floor. Where the big carpenters jump along the floor with both feet together. If you watch closely you can actually see them push the floor back as they take off. Darn that Newton and his laws. >> actually Steve, , your description of "hopping" is really what I had in mind with my comments on "kicking", the only thing I do that resembles " kicking " is a gentle tap with my foot ( non marking heels ) to help line up the gap between panels, , that's it, , , very best, Keith Arsenault IAEG - International Arts & Entertainment Group Tampa, Florida ------------------------------ Date: Sat, 26 Mar 2005 15:50:08 -0500 (EST) From: Boyd Ostroff Subject: Re: Projector Issues In-Reply-To: Message-ID: References:

On Sat, 26 Mar 2005, Michael Feinberg wrote: > as all of the chips are be manufactured under Texas Instruments's > patents, there are fewer options available. The people from Barco tell me that Texas Instruments controls production of DLP chips very tightly, and they get the chips for their projectors directly from them. They also pay a royalty to TI for every unit sold. They are dismayed that TI is moving towards smaller and smaller chips which present a real problem for their big projectors, so the Barco engineers spend much of their time figuring out how to make the optics and cooling work. They said to expect to see more of their projectors with liquid cooling in the future, like they currently use in the top of the line 27,000 lumen model. Barco doesn't sell in enough volume to have custom chips manufactured by TI (evidently they won't even talk to you for quantities under 100,000). I'm also told that TI is working on tiny DLP chips to be used in CELL PHONES, so you an project movies on the wall! At CES a couple companies showed prototypes of tiny palm-sized DLP projectors that use LED's as the light source. | Boyd Ostroff | Director of Design and Technology | Opera Company of Philadelphia | http://tech.operaphilly.com | ostroff [at] operaphilly.com ------------------------------ Date: Sat, 26 Mar 2005 16:48:54 -0500 From: "Josh Ratty" Subject: Re: Where can I access the archives and a Marley question Message-id: <020a01c5324d$9b0f9f10$5901a8c0 [at] Rattys> References: Yeah we don't hop it we kick it. I guess you could describe it as a forceful walking always with one foot on the ground. between that and the people pulling the other end we get a few inches of elongation as well. Josh Ratty ----- Original Message ----- From: To: "Stagecraft" Sent: Saturday, March 26, 2005 3:50 PM Subject: Re: Where can I access the archives and a Marley question > For info, archives & UNSUBSCRIBE, see > --------------------------------------------------- > > > In a message dated 3/26/05 2:44:08 PM, slitterst [at] ithaca.edu writes: > > << What I find counter-productive is the process of "hopping" the floor. > Where the big carpenters jump along the floor with both feet > together. If you watch closely you can actually see them push the > floor back as they take off. Darn that Newton and his laws. >> > > actually Steve, , your description of "hopping" is really what I had in mind > with my comments on "kicking", > > the only thing I do that resembles " kicking " is a gentle tap with my foot ( > non marking heels ) to help line up the gap between panels, , that's it, , , > > > very best, > > Keith Arsenault > > IAEG - International Arts & Entertainment Group > Tampa, Florida ------------------------------ From: IAEG [at] aol.com Message-ID: <1c4.24f55df6.2f773379 [at] aol.com> Date: Sat, 26 Mar 2005 16:51:53 EST Subject: Re: Where can I access the archives and a Marley question In a message dated 3/26/05 4:50:04 PM, josh.ratty [at] verizon.net writes: << Yeah we don't hop it we kick it. I guess you could describe it as a forceful walking always with one foot on the ground. between that and the people pulling the other end we get a few inches of elongation as well. Josh Ratty >> i make my guys pull VERY hard, , and they keep pulling until it's ready for some one to stand on it so that they can tape it down, , sometimes I make them put two lengths of tape at the other end so they don't pull it up off the deck very best, Keith Arsenault IAEG - International Arts & Entertainment Group Tampa, Florida ------------------------------ Message-ID: Date: Sat, 26 Mar 2005 13:49:31 -0800 From: Brian Munroe Reply-To: Brian Munroe Subject: Re: Where can I access the archives and a Marley question In-Reply-To: References: On Sat, 26 Mar 2005 15:46:44 EST, IAEG [at] aol.com wrote: > anyone remember DANCIN' on Broadway ? > > as the audience entered the electrics were in the down position, , and on, , > I assume drying the floor that was just mopped and they were drying it out, > > the show started with the audience hearing over the P A the SM calling the > pre show ques, , including flying the electrics out Was it the actual SM or a recorded "this is what the public thinks it really is" sound cue? Most fly cues on Broadway are taken from cue lights, not verbals. Brian Munroe bpmunroe [at] gmail.com ------------------------------ From: "ladesigners [at] juno.com" Date: Sat, 26 Mar 2005 22:06:33 GMT Subject: Re: Projector Issues Message-Id: <20050326.140714.23871.78244 [at] webmail01.lax.untd.com> Whatever happened to good old Reverse Engineering in the hands of an industrial giant such at Matsushita, Seiko, Samsung, Sony, Sanyo-Epson, Toshiba or some other deep-pocketed manufacturer of Consumer Electronics with $5 Billion+ in yearly receipts who can amortize their cost over worldwide sales of a better engine for video projection? /s/ Richard On Sat, 26 Mar 2005, Michael Feinberg wrote: > as all of the chips are be manufactured under Texas Instruments's > patents, there are fewer options available. ------------------------------ Date: Sat, 26 Mar 2005 17:26:22 -0500 From: Stephen Litterst Subject: Re: Where can I access the archives and a Marley question Message-id: <4245E18E.52DFA68A [at] ithaca.edu> Organization: IC-Dept. of Theatre Arts References: IAEG [at] aol.com wrote: > --------------------------------------------------- > sometimes I make them put two lengths of tape at the other end so they don't > pull it up off the deck We would put the two largest guys on the call at the other end as ballast. And double tape. It was a mixed blessing when I became large enough to serve as ballast. Good because I didn't have to stomp my heels into my toes anymore, though. -- Stephen C. Litterst Technical Supervisor Ithaca College Dept. of Theatre Arts 607/274-3947 slitterst [at] ithaca.edu ------------------------------ Message-Id: <3.0.6.32.20050326233214.016fee08 [at] pop.west.cox.net> Date: Sat, 26 Mar 2005 23:32:14 From: CB Subject: Economy of Momentum (was: Re: Lifting pianos revisited) >I am accused of always looking for the easiest (laziest) way to >accomplish a project. So far I think you win. I once dated a girl who's pop waws one of those 'efficiency experts' that came arounf to factories and such in the late seventies, early eighties. According to her, he'd go in the first day nad have everyone tell him stories about who the lazy guy was, and then go follow the lazy guy around. He'd take note of all the shortcuts he took, and how he made machinery do the work, or how he could 'automate' some steps to take a smoke break, etc., and then put all that in his report as 'How to Make Things Run More Efficiently'. P.S. Is that the proper way to respond with a new thread? Chris "Chris" Babbie Location Sound MON AZ Delete key training and post trimming done by appointment. Rates negotiable, will trade for typing lessons/ADD treatment... ------------------------------ Message-ID: <4245E6EB.6040403 [at] fuse.net> Date: Sat, 26 Mar 2005 17:49:16 -0500 From: Stuart Wheaton Subject: Re: A/C Power Cable / Name that Amperage References: In-Reply-To: IAEG [at] aol.com wrote: > > In a message dated 3/26/05 9:14:23 AM, bill-conner [at] att.net writes: > > << "Between this and the "Wild Leg" question at USITT, do we need to have > Eddie > > chair a "Stump the Electrician" panel next year?" > > > That might possibly be Eddie, Mitch Heftner, Ken Vannice, and Steve Terry? > > Someone bring some adult beverages please. >> > > > > how about a "Name that Amperage" contest, , > We could bring pictures of those terrible scary installations we've all stumbled on and have a "shock the electrician" poster session... ------------------------------ Message-Id: In-Reply-To: References: Date: Sat, 26 Mar 2005 17:46:31 -0500 From: Eddie Kramer Subject: Re: panel discussion On 3/26/05 Bill Sapsis sent: >Not fair. You walked out of the room before I could give it to you. >What size? I'll send it to RCMH Just bring with you to Stump the Electrician next year -- -------------------- Eddie Kramer IATSE #1 Member NEC Panel 15 ------------------------------ Reply-To: From: "Jeffrey E. Salzberg" Subject: RE: A/C Power Cable / Name that Amperage Date: Sat, 26 Mar 2005 17:52:16 -0500 Message-ID: <000401c53256$788b2b90$6501a8c0 [at] Dell> In-Reply-To: > We could bring pictures of those terrible scary > installations we've all stumbled on and have a "shock the > electrician" poster session... I wish I had a photo of the most...interesting...adaptor I ever saw -- a 2P&G stage plug on one end and a 1/4" phone plug on the other. ------------------------------ From: "Andy Leviss" Subject: RE: A/C Power Cable / Name that Amperage Date: Sat, 26 Mar 2005 16:07:04 -0500 Organization: Duck's Echo Sound Message-ID: <001601c53247$c38d2080$a19afea9 [at] AndyLeviss> In-Reply-To: Stuart Wheaton wrote: > We could bring pictures of those terrible scary > installations we've all stumbled on and have a "shock the > electrician" poster session... Oh, you mean like this? http://OneFromTheRoad.com/images/photos/dayton_distro.jpg Yes, that is a tire rim. Yes, it is outdoors. And yes, it was sitting in a puddle the morning we loaded in there! --Andy http://OneFromTheRoad.com Tools, Toys, and Tales for the Theatrical Technician -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.308 / Virus Database: 266.8.2 - Release Date: 3/25/2005 ------------------------------ From: FrankWood95 [at] aol.com Message-ID: <13d.fde91d4.2f774bf3 [at] aol.com> Date: Sat, 26 Mar 2005 18:36:19 EST Subject: Re: Projector Issues In a message dated 26/03/05 20:30:00 GMT Standard Time, michaelf [at] joyce.eng.yale.edu writes: > Single chip DLP alternately produces the red/green/blue portions of > the image separately and passes them through one section spinning > tri-color filter to colorize them. If I recall this happens around > 120Hz, but some feel that they can still perceive the flicker > inherent in alternating between the three pictures. Shades of John Logie Baird! This is very much how the earliest TV systems worked. Mechanical scanning, and a single photo-receptor, or emitter. Frank Wood ------------------------------ From: FrankWood95 [at] aol.com Message-ID: <143.420d012f.2f774e00 [at] aol.com> Date: Sat, 26 Mar 2005 18:45:04 EST Subject: Re: Where can I access the archives and a Marley question In a message dated 26/03/05 20:50:56 GMT Standard Time, IAEG [at] aol.com writes: > actually Steve, , your description of "hopping" is really what I had in mind > > with my comments on "kicking", > > the only thing I do that resembles " kicking " is a gentle tap with my foot ( > > non marking heels ) to help line up the gap between panels, , that's it, , , > Professional carpet fitters use devices that we call 'knee-kickers' . A horizontal piston, with a heavy pad at one end, and a carpet grip at the other, with spikes. These allow the carpet to be stretched while you are crawling on it. I think that these would be too rough for Marley, but maybe someone could come up with something similar. Double-sided tape, rather than spikes? Frank Wood ------------------------------ From: FrankWood95 [at] aol.com Message-ID: <1f5.65c3d51.2f775198 [at] aol.com> Date: Sat, 26 Mar 2005 19:00:24 EST Subject: Re: A/C Power Cable / Name that Amperage In a message dated 26/03/05 22:53:02 GMT Standard Time, stagecraft [at] jeffsalzberg.com writes: > I wish I had a photo of the most...interesting...adaptor I ever saw -- a > 2P&G stage plug on one end and a 1/4" phone plug on the other. I have heard of, but not seen, a touring outfit who used XLR-3 conectors for everything. I really mean everything! Mains, microphones, loudspeakers, you name it. Let's be fair, XLR-3 connectors are rated for all these jobs, and it must have saved them in cable inventory. I have no information on what it cost them in blown-up equipment. Maybe their techs were very, very good. They would need to be. Myself, I have a weakness for being able to deduce from the connector what signals it might be carrying, Frank Wood ------------------------------ From: IAEG [at] aol.com Message-ID: <157.4d74e7a0.2f7752eb [at] aol.com> Date: Sat, 26 Mar 2005 19:06:03 EST Subject: Re: Where can I access the archives and a Marley question In a message dated 3/26/05 4:57:39 PM, bpmunroe [at] gmail.com writes: << Was it the actual SM or a recorded "this is what the public thinks it really is" sound cue? Most fly cues on Broadway are taken from cue lights, not verbals. >> well, , , it may have been recorded, , , the Stage Manager was someone I was familiar with, , and it was his voice very best, Keith Arsenault IAEG - International Arts & Entertainment Group Tampa, Florida ------------------------------ From: FrankWood95 [at] aol.com Message-ID: <145.425b0f2e.2f77539b [at] aol.com> Date: Sat, 26 Mar 2005 19:08:59 EST Subject: Re: A/C Power Cable / Name that Amperage In a message dated 26/03/05 23:06:37 GMT Standard Time, Andy [at] DucksEchoSound.com writes: > Yes, that is a tire rim. Yes, it is outdoors. And yes, it was sitting in > a puddle the morning we loaded in there! It's not the clearest of pictures. But it doesn't surprise me. I have seen many mobile generators where the safety earth was achieved by parking the generator with one wheel on the earth spike. It seems to work. Frank Wood ------------------------------ From: "Andy Leviss" Subject: RE: A/C Power Cable / Name that Amperage Date: Sat, 26 Mar 2005 17:25:43 -0500 Organization: Duck's Echo Sound Message-ID: <001701c53252$c025ffb0$a19afea9 [at] AndyLeviss> In-Reply-To: Regarding the photo of a rather frightening looking distro I came across at a venue last fall, Frank wrote: > > Yes, that is a tire rim. Yes, it is outdoors. And yes, it > was sitting > > in a puddle the morning we loaded in there! > > It's not the clearest of pictures. But it doesn't surprise > me. I have seen > many mobile generators where the safety earth was achieved by > parking the > generator with one wheel on the earth spike. It seems to work. Yes, but this is a tire rim just being used as a weighted base, sitting on pavement, not on an earth spike. And, if you look closer, you'll see lots of individual wires trailing out of the outer jacket of the cable and running up to the various outlets on it loose. Not to mention that this is a shore power distro, not a generator (I'm sure you know that, but given that, your comment about the ground doesn't have any relevance at all). --Andy -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.308 / Virus Database: 266.8.2 - Release Date: 3/25/2005 ------------------------------ From: "ladesigners [at] juno.com" Date: Sun, 27 Mar 2005 00:35:29 GMT Subject: Re: A/C Power Cable / Name that Amperage Message-Id: <20050326.163626.4074.79410 [at] webmail21.lax.untd.com> Another way is to to 'hitch' the Genny trailer to a 8' copper clad steel rod driven about 6'6" into the ground with a 2" ball or pinto hitch welded or bolted using wire taps sized for 4/0 on top, then use the trailer tongue lift mechanism to help start pulling out the ground rod when the Genny is about to be hauled away. /s/ Richard I have seen many mobile generators where the safety earth was achieved by parking the generator with one wheel on the earth spike. It seems to work. Frank Wood ------------------------------ Message-ID: <000e01c5327c$fe69d790$0200a8c0 [at] lpt> From: Subject: Speaking of Genies Date: Sat, 26 Mar 2005 21:28:04 -0600 Organization: Minnesota Ballet However, y'all should take a look at this. I found it while flipping through Genie's website. No outriggers--but take a look at what they are using it for...http://www.genielift.com/ss-series/ss-1-3.asp How does the extending basket affect the center of balance? At a height of 30 feet I'd feel a bit uncomfortable changing that balance from slightly under me to behind me. Also what the heck is a Platform-locating laser light ? Ken ------------------------------ Message-ID: From: "Occy" References: Subject: Re: A/C Power Cable / Name that Amperage Date: Sat, 26 Mar 2005 20:27:07 -0800 The funniest ground that I have ever seen a 5 gallon plastic bucket filled with concrete and grounding rod stuck in the concrete with all the proper hardware to connect a 4\0 pigtail ground color camlock to connect to it, and a pigtail was already connected to it when they brought it in. This was of course after I complained many of time that the genny not being grounded on the other special projects that I worked on. After I got off the floor I made them drive a 10 foot 3/4 inch grounding rod threw the asphalt in the parking lot, then the quote was "we will never get it out" I said 3 options use a fork lift with a spanset, cut it off or drive it all the way down. They used the fork lift. ----- Original Message ----- From: > Another way is to to 'hitch' the Genny trailer to a 8' copper clad steel > rod driven about 6'6" into the ground with a 2" ball or pinto hitch welded > or bolted using wire taps sized for 4/0 on top, then use the trailer > tongue lift mechanism to help start pulling out the ground rod when the > Genny is about to be hauled away. > /s/ Richard > > I have seen many mobile generators where the safety earth was achieved by > parking the generator with one wheel on the earth spike. It seems to work. > Frank Wood > > ------------------------------ From: "Robert Barnwell" Subject: Nicopress Sleeves Date: Sun, 27 Mar 2005 00:14:46 -0500 Message-ID: I'm interested in getting everyone's thoughts on Nicopress sleeves, mainly regarding Copper and Aluminum sleeves. As well as if it is a good idea to use off brands, other than hardware manufactured by National Telephone Supply. Thanks Robert ------------------------------ Message-ID: <96c90e34050326214473f64a48 [at] mail.gmail.com> Date: Sun, 27 Mar 2005 00:44:52 -0500 From: David d'Anjou Reply-To: David d'Anjou Subject: Re: rigging spreadsheet In-Reply-To: References: Something I do with excel is to simply enter a plus sign before entering a fraction "+1/8". The fraction gets resolved to the decimal equivalent, but if you edit the cell late you see what you entered. AND you don't have to remember what the decimal equialent for 37/64ths is. On Thu, 24 Mar 2005 11:07:06 -0800 (PST), Michael Heinicke wrote: > For info, archives & UNSUBSCRIBE, see > --------------------------------------------------- > > --- Delbert Hall wrote: > > Alex - YOU DA MAN!!! > > > > I never though about entering the diameter in > > anything other than a decimal > > value into the spreadsheet. When I entered 1/8 I > > got the date of Jan. 8. I > > tried 1/8" and got a value error. > > > > Problem solved. > > > > -Delbert > > Works for me. I just automatically entered a fraction, > which then messed up every other attempt. Using a > decimal first prevented the problem. > > Mike H > -- David d'Anjou Technical Communications Supervisor Cirque du Soleil ------------------------------ Message-ID: <069001c532a1$e1394f00$6401a8c0 [at] chris> From: "Chris Warner" Subject: City Politics Date: Sat, 26 Mar 2005 23:52:09 -0800 Well, this might seem a bit OT, but, I need some advice from some individuals that have dealt with this scenario. I am not going to name ANY names, but I will say that a theatre company I am a member of, is loosing its facility so that a city redevelopment project can be completed. We were notified of this approximetly 6 days ago, and Saturday morning, the board of directors held an emergency meeting, and some members from the city managers office attended. Through a short discussion then a Q&A that followed afterwards, a few of us within the board began to realize that our program was going to severely impacted, and the future of our organization was going to be in jeopardy. The city has a plan to build a new facility however, that is 3 years from the date of demolition of our current facility, however, when the new facility is built, we no longer have managerial control over it, which creates a number of scheduling concerns for us, as well as (our biggest concern) a wear and tear issue on the lighting equipment we currently own in the old space, which has not even been considered by the city's proposal. So the question is has anyone been in a situation like this? I would like to hear horror stories as well as the good stories. If youd like, off list might be best to protect the names of the innocent. The next question, those of you that have had healthy relationships with cities in the past, are you noticing that fewer and fewer cities are willing to work with the visual and performing arts? Thanks everybody in advance, Chris -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.308 / Virus Database: 266.8.3 - Release Date: 3/25/2005 ------------------------------ Message-ID: <42466C2D.E56FEC28 [at] cybercom.net> Date: Sun, 27 Mar 2005 03:17:49 -0500 From: Dale Farmer Organization: The fuzz in the back of the fridge. Subject: Re: Laptop Battery (OT) References: FrankWood95 [at] aol.com wrote: > For info, archives & UNSUBSCRIBE, see > --------------------------------------------------- > > In a message dated 26/03/05 08:42:21 GMT Standard Time, > jdurand [at] interstellar.com writes: > > > Now if you could just get the CPSC to quit trying to put us legal fireworks > > people out of business (and doing a pretty good job of it) and actually > ban > > some of the dangerous batteries and other products... > > > > If they were effective, there wouldn't be exploding batteries all over. > > How do you get exploding batteries, without doing bad things to them? I've > seen it done, with a short circuit, and done it myself when experimenting with > fast charge systems. Either can lead to internal overheating, then high > internal gas pressures, and then you're scraping bits of battery off the walls. You > can also manage it with a battery pack with a duff cell in it, on a fast > charger. > > But, used within the manufacturer's specifications, they are normally quite > peaceful. Mind, in an old-fashioned central battery telephone exchange, it was > forbidden to take a metal ladder into the battery room. We're talking of 50V > worth of high capacity lead-acid cells, in a room maybe 20' long and 10'wide. > The pyrotechnics caused by dropping a metal ladder onto the exposed terminals > would be very spectacular. > > Frank Wood I once managed to put a dead short across the battery stack of an electric golf cart. Once the fireworks died down and everyone made sure things were made safe, I noticed a rather large blot in my vision. It's a blob of once molten lead spread across one of the frames of my glasses. I believe in wearing safety glasses. When I was in the fire department in the Washington, DC area, they showed us the halligan tool, well, half of the halligan tool, that one of the DCFD men had laid between the third rail and the traction rail. He had the erroneous belief that this would cause the breakers to open that were supplying third rail power, saving him the walk down to the blue light box which had the EPO button. 750 VDC at 10 000 amps caused the body of the tool to act like a fuse, and it melted through. 3/4ths inch diameter steel rod. Pop! --Dale ------------------------------ Message-ID: <42466E80.3BB4B97B [at] cybercom.net> Date: Sun, 27 Mar 2005 03:27:44 -0500 From: Dale Farmer Organization: The fuzz in the back of the fridge. Subject: Re: A/C Power Cable / Name that Amperage References: "Jeffrey E. Salzberg" wrote: > For info, archives & UNSUBSCRIBE, see > --------------------------------------------------- > > > We could bring pictures of those terrible scary > > installations we've all stumbled on and have a "shock the > > electrician" poster session... > > I wish I had a photo of the most...interesting...adaptor I ever saw -- a > 2P&G stage plug on one end and a 1/4" phone plug on the other. I once saw an old bell system guy pull out of his tool box a contraption that had an edison plug hot wire (only ) wired to a hundred watt light bulb, and the other side of the bulb wired to a phone plug, connected to the grounded side of the pair. He said that this "blew the corrosion off the ground rod.", and then plugged it in. I was walking rapidly away at this point and he emerged later, none the worse for the experience. --Dale ------------------------------ Message-ID: From: "Occy" References:

Subject: Re: A/C Power Cable / Name that Amperage Date: Sun, 27 Mar 2005 02:16:50 -0800 Don't get me started on my stories with phone guys, old or new, just at home I forgot more than they know................. ----- Original Message ----- From: "Dale Farmer" > I once saw an old bell system guy pull out of his tool box a > contraption > > that had an edison plug hot wire (only ) wired to a hundred watt light > bulb, > > and the other side of the bulb wired to a phone plug, connected to the > grounded side of the pair. He said that this "blew the corrosion off the > ground rod.", and then plugged it in. I was walking rapidly away at > this point and he emerged later, none the worse for the experience. > > --Dale > > > ------------------------------ End of Stagecraft Digest #344 *****************************