Amp builders might be interested in this like 20 dollar gadget.
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Its marketed as a IGBT tester however it can test? any component to 3700 volts upto 5ma.
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I have used it to test MOV's Gas tubes,? Zeners, leds, capacitors, rectifier diodes, coax connectors etc etc Its really handy when you dont want to pull out the big hypot
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It operates in two test modes. You connect the device and just push the button and it will indicate the voltage that the DUT flashes over.
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The other mode is that you can disconnect the DUT and dial in the expected working voltage then it will test at the dialled voltage.
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I generally start on low voltage and increment up till I hit the flash voltage.
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The voltage output? is very accurate.
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You can find them on all the Chinese auction sites
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Its been a fun toy. Maybe one of these days they will make a 10 or 15KV version which would be handy.
You can hear from the whine that its using one of those HV? switchmode booster modules. It sources 5MA so you can test strings of series zeners when wired in reverse. Very handy.
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