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Author Topic: Most electrifying experience
Bernard Tonks
Jedi Master Film Handler

Posts: 619
From: Cranleigh, Surrey, England
Registered: Apr 2001


 - posted 09-26-2001 03:03 PM      Profile for Bernard Tonks   Email Bernard Tonks   Send New Private Message       Edit/Delete Post 
My worst, on several occasions, was when the insulation used to break down on the old Brockliss floor changeover switches which was a large box with a bar plunger! You could do a changeover and there would be a god almighty bang with sparks flying, you felt your foot had been blown off, as well as the mental shock! As the new chief projectionist in this West End cinema needless to say I didn’t put up with this for long. The two house engineers (such luxury in those days) and myself installed new Zipper changeovers with wall press buttons on the three projectors.
____________________________________________________________________

The most funny one I heard was when a 3 phase extract fan was repaired, and the engineer connected it back wrong, and it ran in reverse without anyone realising. Now this was a very big fan in a 2,500 seater cine-variety theatre. Apparently the manager was faced with a huge cleaning bill, when the most affected customers in the front circle were all looking like AL JOLSON!





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Barry Floyd
Phenomenal Film Handler

Posts: 1079
From: Lebanon, Tennessee, USA
Registered: Mar 2000


 - posted 09-26-2001 04:37 PM      Profile for Barry Floyd   Author's Homepage   Email Barry Floyd   Send New Private Message       Edit/Delete Post 
Back in my high school days I worked at the local Dairy Queen. Sunday nights after church let out was especially busy and the compressors on the ice cream machines couldn't keep up with the demand.
My manager at the time figured out if you wedged a pop-cicle stick under the relay of the compressor to keep it closed, it would force the compressor to run constantly. One night when he wasn't there, the machines started acting up and I decided to use a screwdriver to hold the relay closed - not even considering it was metal. Needless to say I was thrown across the front line and hit the wall of the drive-thru window. Never did that again!!

I also figured out what would happen if you wired the 6 volt framing lamps of a Simplex XL to 120 volts. Ticked me off too... I had just replaced all the bulbs!!

------------------
Barry Floyd
Floyd Entertainment Group
Nashville, Tennessee
(Drive-In Theatre - Start-Up)

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Will Kutler
Phenomenal Film Handler

Posts: 1506
From: Tucson, AZ, USA
Registered: Feb 2001


 - posted 09-26-2001 05:03 PM      Profile for Will Kutler   Email Will Kutler   Send New Private Message       Edit/Delete Post 
This actually took place when I was in college studying aviation maintenance. I have been a licensed mechanic since about 1988 with both civilian and military heavy and light aircraft experience.

One of my classmates was stupid enough to bet others that a magneto with an impulse coupling did not put out that much juce! Others dared him to drop his pants, hook it up to his pecker and give it a whirl! He took them up on the dare/bet!

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Mark Gulbrandsen
Resident Trollmaster

Posts: 16657
From: Music City
Registered: Jun 99


 - posted 09-26-2001 07:25 PM      Profile for Mark Gulbrandsen   Email Mark Gulbrandsen   Send New Private Message       Edit/Delete Post 
I can only pray that it wasn't the guy that changed the starter on the 737 last time I went on a flight. He did have a funny look that seemed to be etched onto his face though. It was hard to tell if it could have been the shock that did it or getting caught in the blast of a JT8. Both however I'm sure must give one about the same effects!
Mark @ GTS

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Kristin Wahlund
Film Handler

Posts: 92
From: Eagan, MN
Registered: Jul 2001


 - posted 09-26-2001 08:22 PM      Profile for Kristin Wahlund   Email Kristin Wahlund   Send New Private Message       Edit/Delete Post 
When I was younger, my friends and I went bowling. While I was trying to find the switch for the light for the score keeper (not those fancy computer ones) I touched some bare wires, that hurt! Maybe that is where this curly hair comes from!

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Paul G. Thompson
The Weenie Man

Posts: 4718
From: Mount Vernon WA USA
Registered: Nov 2000


 - posted 09-26-2001 09:50 PM      Profile for Paul G. Thompson   Email Paul G. Thompson   Send New Private Message       Edit/Delete Post 
Jeeze, Jerry. Isn't it amazing how a single sentence be taken two completely different ways?

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Paul G. Thompson
The Weenie Man

Posts: 4718
From: Mount Vernon WA USA
Registered: Nov 2000


 - posted 09-26-2001 10:16 PM      Profile for Paul G. Thompson   Email Paul G. Thompson   Send New Private Message       Edit/Delete Post 
Hey, Bruce...Did you ever use the 1B3 or the 3A3 and a screwdriver as a cigarette lighter?


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Paul G. Thompson
The Weenie Man

Posts: 4718
From: Mount Vernon WA USA
Registered: Nov 2000


 - posted 09-26-2001 10:25 PM      Profile for Paul G. Thompson   Email Paul G. Thompson   Send New Private Message       Edit/Delete Post 
Mark, I had a digital voltmeter connected to the voltage monitor points on an ORC lamphouse when the ignition pulse hit the lamp. The meter said "KA-CHING" and read 007 on any scale or mode I put it in.

I sent the meter back for warrenty, and after three weeks, they sent me a brand new one with a note that said to the effect:

"We don't exactly know what you hit this thing with, but you did such a good job screwing it up that we could not even fix it. So, here is a new meter to replace the one you toasted"

Now, THAT'S what I call a good warrenty.


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Randy Stankey
Film God

Posts: 6539
From: Erie, Pennsylvania
Registered: Jun 99


 - posted 09-27-2001 12:22 AM      Profile for Randy Stankey   Email Randy Stankey   Send New Private Message       Edit/Delete Post 
Paul & Mark: Remember the old saying, "If it works, it's a FLUKE!"

Will: ROFL! I can't IMAGINE somebody would be so stupid as to hook a magneto up to his schwantz! Betcha' he has a permanent woody, now!
"When I was young and had no sense..."

I guess I've been lucky, not to have been bitten badly. Just your basic stuff. Enough to make you swear but not enough to make you forget how to swear.

However, in Tech school, we ripped a choke coil out of an old TV and turned it into a 1,000:1 induction coil by putting a single turn of transformer wire as a secondary. We made a vibrator out of a DPST relay and hooked the whole thing up to a couple 6V lantern batteries. We took turns holding onto the secondary leads while another guy pressed the button. It was enough to make your teeth chatter!

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Bruce McGee
Phenomenal Film Handler

Posts: 1776
From: Asheville, NC USA... Nowhere in Particular.
Registered: Aug 1999


 - posted 09-27-2001 12:41 AM      Profile for Bruce McGee   Email Bruce McGee   Send New Private Message       Edit/Delete Post 
Paul: I did light paper with the
1B3's, but here's the way I did it:

I had an old Olympic B/W set that never really did anything other than buzz while I had it. As a joke, I installed a 1B3 that had an air leak. Then I stuffed a bit of flash paper into the HV cage. A friend came over, and I showed him the set, and told him to watch it and see how good it looked. I turned it on, and left the room for a minute. There was a white flash from the back of the set, and a wet spot on the chair. He never came back. I have new friends now...

I never did that one again.

Mark G:
Is there not a replacement tube for the 15" RCA CTC-0001 anywhere?

As for the 21AXP22, I replaced many of them with 21FBP22, if the set had a safety glass, and 21FJP22A if it didn't have one. My 1961 RCA CTC-10C is still running, and looks good as long as you dont compare it to another set. It has a good high-voltage vertical boost source that got me once through a thought-to-be-insulated screwdriver. Made my arm numb for awhile.


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Paul G. Thompson
The Weenie Man

Posts: 4718
From: Mount Vernon WA USA
Registered: Nov 2000


 - posted 09-27-2001 01:24 AM      Profile for Paul G. Thompson   Email Paul G. Thompson   Send New Private Message       Edit/Delete Post 
Bruce, I thought I was the only one that would pull a stunt like that on someone. Do you see that sly look in my eye in the picture to the left?

Yes, those old Olympic B&W TV's can be a pig. Biggest problem I had with them was the horizontal drivers failed, and the feedback cap from the flyback went Horse s***. I can almost remember the C- designation in the schematic.


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Paul G. Thompson
The Weenie Man

Posts: 4718
From: Mount Vernon WA USA
Registered: Nov 2000


 - posted 09-27-2001 01:45 AM      Profile for Paul G. Thompson   Email Paul G. Thompson   Send New Private Message       Edit/Delete Post 
And, Bruce, what are you doing with that wimpy 16mm POS you are standing with while you are drinking your Janitor Sweeping Compound (sorry, Brad) film guard?

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Mark Gulbrandsen
Resident Trollmaster

Posts: 16657
From: Music City
Registered: Jun 99


 - posted 09-27-2001 10:05 AM      Profile for Mark Gulbrandsen   Email Mark Gulbrandsen   Send New Private Message       Edit/Delete Post 
Bruce,
The 15AXP22 was only made for a short time and probably less that 20,000 were made. It had a really oddball electron gun that no other tube used. It has some extra elements in it as the CTC-00000001 used I-Q color decoding just like the monitors do in studio operations. That was too expensive and complicated to build and align on a huge scale back then. To make matters worse, many of the first 15" RCA color sets were converted to 21 inchers with an upgrade kit that RCA sold. I don't know what CRT that used though as none of the more common 21 inch tubes are compatible. I assume they must ahve made a special run of 21 inch tubes that used the 15" gun assy.

There is a small group of guys that are in the process of trying to get some of these guns built so they can restore their sets to working condition, going so far as to track down who bought the manufacturing equipment from RCA, and checking with them to see if they still have the tooling to make them. Last I checked their web site thay had made some good progress. I guess there are so few examples of these sets that it must be worth the effort. I don't know of any Motorola or Sylvania 15" color sets that are still operating either.
Mark @ GTS

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Tom Sauter
Expert Film Handler

Posts: 163
From: Buffalo, NY, USA
Registered: Sep 2000


 - posted 09-27-2001 11:41 AM      Profile for Tom Sauter   Author's Homepage   Email Tom Sauter   Send New Private Message       Edit/Delete Post 
I have seen musicians get zapped during outdoor concerts on rainy days by the 48VDC phantom power used for condenser mics. Now I only use consoles with individual phantom power on each channel!

We were playing circuit breaker hunter at the radio station one day and my colleauge just dicided to ram a fork into the outlet. We found the breaker, alright.

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Greg Mueller
Phenomenal Film Handler

Posts: 1687
From: Port Gamble, WA
Registered: Jun 99


 - posted 09-27-2001 12:11 PM      Profile for Greg Mueller   Author's Homepage   Email Greg Mueller   Send New Private Message       Edit/Delete Post 
Tom, you reminded me that (back in the 60s when I was a musician) if we didn't have the polarity on our guitar amps and the PA system going the same way we'd get zapped on the lips, from the microphone. Talk about a tender place to get hit. It would take minutes to get your eyes uncrossed and stopped from watering

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Greg Mueller
Amateur Astronomer, Machinist, Filmnut
http://www.muellersatomics.com/

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