Sun pro sp4003 timing light

Thread Starter

mike.c

Joined Jun 2, 2025
7
I have a quiet a sudden Pro SP 4003 engine timing light which as the xenon tube charge capacitor missing. I do not know its value but I am assuming it is about two microfarad 630 volts can anyone confirm this is correct and where can I locate one of these in the UK.
Regards Mike
 

Ian0

Joined Aug 7, 2020
13,097
I don't know as it was missing when I acquired the gun. I'm assuming it is not an electrolitic from the you tube videos I have watched.
Is there anything printed on the pcb? You can probably get the diameter and the lead pitch.
 

Thread Starter

mike.c

Joined Jun 2, 2025
7
Did I get it right?
Thanks Ian0 I've obtained a 2.2 UF 600 v
From another similar gun. Without the capacitor attached I'll get a continuous glow from the xenon tube with whistle. With capacitor attached all quiet and no xenon illumination. . I lost without the diagram.

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Thread Starter

mike.c

Joined Jun 2, 2025
7
All ok now . Faulty 2uf cap. Tested with a 12 vol supply through the clamp pulsed on and of through a few turns of electric fir element to trigger gun.
 
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