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Burnt lamp on my timing ligth? or something else?

gtcs1

Active member
Joined
Sep 4, 2011
Messages
42
Hi, My timing light doesn't flash anymore. I've owned it for about 30 years, and I've used it just a few times... Last time I've used it, it was OK (2 years ago). Now I'm trying to use it but it doesn't flash. It has a Xenon lamp, p/n 64200200. I don't even see a brand name on the gun.

If you look at the bulb, there is a gap of just over 1/4" in the inner wire from both ends. Is that Ok or it is a burnt bulb (it looks like a fuse).

There is a bit of black mark around the right cap (the anode?) of the bulb, and in the operating instruction manual they say this is fine. Only when it is completely black this is supposed to be no good. They don't talk about this 1/4" gap. May be this is the way a strobe ligth function, with this gap.

If this is not the bulb which is defective, what could cause it to not work?.

I'm really puzzled, and don't really want to have to buy a new timing light.

Thanks for your advices.

gtcs1
 

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91bronc300

Well-known member
Joined
Oct 19, 2009
Messages
2,559
What about just feeding the bulb 12V straight from the battery and see if it lights up?
 
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G_P

Well-known member
Joined
Jul 11, 2010
Messages
7,135
Location
Central CT
What about just feeding the bulb 12V straight from the battery and see if it lights up?

Its a strobe bulb. Like a camera flash. Needs a capacitor and other parts to fire the flash most likely.
Maybe it gets inductive power from the plug lead?
Doubt its a regular 12v bulb.

Sent via carrier pigeon.
 
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