Tube from SG - Printable Version

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Tube from SG - vecher - 07-19-2019

How do you test a 0A3 Tube.. Its not listed for my Hickok 600A

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RE: Tube from SG - mikethedruid - 07-19-2019

The 0A3 is a cold cathode voltage regulating tube. It operates a bit like a neon bulb, and will glow when in operation. You can check if it is working by measuring the voltage between pins 2 and 5 while it is in operation. The voltage shouyld be about 75 volts.
Here is a link to the data sheet: https://frank.pocnet.net/sheets/049/0/0A3.pdf

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RE: Tube from SG - morzh - 07-19-2019

It is same as Zener for solid state.

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