came across this circut....looks simple enough. if one were to add mil=amp meeter connection points in series with the pilot lights.....would it allow to measure for leaks as well? any other diy circuts out there for shorts and leaks?
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Yes, that is a better idea. i did the same thing to. used it in my homebrew tube tester.
My circuit consists of A 230volt neon tube. whit a 100n capacitor in series shunted whit 4M7. fed off 205Vac..
the capacitor is to stop the tube from conducting current, acting as a half wave rectifier.
works really well. flickers under 2M resistance. and glows brightly under 500k.
already found tubes whit shorted grids.. cathode shorts and a lot more faults.
my tester has a test switch whit 10 positions 2-9 test leakage/shorts and position 10 test anode current
cheers.
V4lve
My circuit consists of A 230volt neon tube. whit a 100n capacitor in series shunted whit 4M7. fed off 205Vac..
the capacitor is to stop the tube from conducting current, acting as a half wave rectifier.
works really well. flickers under 2M resistance. and glows brightly under 500k.
already found tubes whit shorted grids.. cathode shorts and a lot more faults.
my tester has a test switch whit 10 positions 2-9 test leakage/shorts and position 10 test anode current
cheers.
V4lve
Hi v4lve lover
Do you have a schematic how you did that?
I’m busy building a tester but i still getting lost how to
Make it test it properly for shorts & leakage
Do you measure from the heater to all other elements
Or from ground?
And if you measure with 205vac can you burn a tube when connected to the heater?
Do you have a schematic how you did that?
I’m busy building a tester but i still getting lost how to
Make it test it properly for shorts & leakage
Do you measure from the heater to all other elements
Or from ground?
And if you measure with 205vac can you burn a tube when connected to the heater?