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Author Topic: Christie lamphouse trouble
Aaron Sisemore
Flaming Ribs beat Reeses Peanut Butter Cups any day!

Posts: 3061
From: Rockwall TX USA
Registered: Sep 1999


 - posted 12-04-2001 07:44 PM      Profile for Aaron Sisemore   Email Aaron Sisemore   Send New Private Message       Edit/Delete Post 
I just replaced a Chinese 'Cine-Lite' 2000W bulb with a new Osram bulb into a Christie H20 lamphouse with CFS power supply, and now where the igniter used to strike, albeit with some futility trying to light that Chinese junker, refuses to autostrike at all now with the Osram. Voltages are OK, and the bulb manual strikes right up and runs at current. Any ideas as to why it will not autostrike now?

As mentioned above, in the past it has autostruck Osram, ORC and the Chinese bulbs just fineuntil the latter began to age and then would take longer to strike until after several unsuccesful tries the autostrike quit running and it had to be manually struck, after a period of time (read: next show in that house) it would try the autostrike again and again, etc...

Any assistance would be appreciated.

-Aaron


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Gordon McLeod
Film God

Posts: 9532
From: Toronto Ontario Canada
Registered: Jun 99


 - posted 12-04-2001 08:54 PM      Profile for Gordon McLeod   Email Gordon McLeod   Send New Private Message       Edit/Delete Post 
Check the amprite timer and the zenier

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Ken Layton
Phenomenal Film Handler

Posts: 1452
From: Olympia, Wash. USA
Registered: Sep 1999


 - posted 12-04-2001 09:28 PM      Profile for Ken Layton   Email Ken Layton   Send New Private Message       Edit/Delete Post 
Yes, that old Amperite time delay relay (inside the igniter) is prone to failure.

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William Hooper
Phenomenal Film Handler

Posts: 1879
From: Mobile, AL USA
Registered: Jun 99


 - posted 03-19-2004 03:40 AM      Profile for William Hooper   Author's Homepage   Email William Hooper   Send New Private Message       Edit/Delete Post 
quote:
Yes, that old Amperite time delay relay (inside the igniter) is prone to failure.

What's the part number & a source for the Amperite time delay relay?

This one's hosed, filament broken, arced inside the tube, & ground wire from the igniter chassis to the terminal strip is vaporized.

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Ken Layton
Phenomenal Film Handler

Posts: 1452
From: Olympia, Wash. USA
Registered: Sep 1999


 - posted 03-19-2004 09:46 AM      Profile for Ken Layton   Email Ken Layton   Send New Private Message       Edit/Delete Post 
Antique Electronics (www.tubesandmore.com) in Tempe, Arizona has them. Get the numbers off the old time delay (it looks just like a vacuum tube).

Edit:

Amperite # 50C10T
50 volt heater
Normally Closed contacts (rated at 3 amps)
10 second delay
9 pin miniture base (looks like a 12AX7 tube)

Pins 1 and 6 are heater
Pins 3 and 4 are contact #1
pins 8 and 9 are contact #2

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William Hooper
Phenomenal Film Handler

Posts: 1879
From: Mobile, AL USA
Registered: Jun 99


 - posted 03-22-2004 01:45 AM      Profile for William Hooper   Author's Homepage   Email William Hooper   Send New Private Message       Edit/Delete Post 
Thanks, Ken.

This one had heat shrink tubing over it, & when removed only 'Amperite' could barely be made out cooked off the tube & transferred in reverse to the inside of the heat shrink.

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