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Intermittent Strobe Light

No issue with the voltage.

Do you have a single power supply for all strobes or do you have one power supply each strobe? As you said earlier, you swapped the tube to the other side and it worked. So that leaves the power supply.

Web
 
No issue with the voltage.

Do you have a single power supply for all strobes or do you have one power supply each strobe? As you said earlier, you swapped the tube to the other side and it worked. So that leaves the power supply.

Web

one power supply each side. Power supply was brand new 4 yrs ago so hard for me to believe it is shot.
 
one power supply each side. Power supply was brand new 4 yrs ago so hard for me to believe it is shot.

OK. So explain to me why it can't be the power supply when you have the correct voltage to the power supply and the tube has been tested good on the other wing.

Web
 
So to confirm, move the power supplies side for side and see if the problem follows the power supply!


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Here is another: power supplies in each wing, both strobes out.

If the owners enlist my aid I will be looking at first the switch, then the breaker and connections, and finally the ground wires, if any. Metal spar, J3.

Any other possibilities?
 
Here is another: power supplies in each wing, both strobes out.

If the owners enlist my aid I will be looking at first the switch, then the breaker and connections, and finally the ground wires, if any. Metal spar, J3.

Any other possibilities?

Maybe just listen to see if you can hear the powerpacks firing. If you hear the pop and whine then it's most likely a tube issue. No noise, troubleshoot powers and grounds first.

Web
 
Good point. I just assumed since they both went out at the same time it was a problem a lot closer to the fuselage.
 
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