Hello,
Does someone have an idea how to test if an old small neon tube (cold cathode - I think) is working, please? My acquaintance bring it and the board with a relay to me to repair and I have no idea...
I mean what voltage range should I try to feed it and how to connect? I guess both ends to the voltage feed and the thin wire to the ground? Should AC or DC be preferred when testing?
Thanks!
Does someone have an idea how to test if an old small neon tube (cold cathode - I think) is working, please? My acquaintance bring it and the board with a relay to me to repair and I have no idea...
I mean what voltage range should I try to feed it and how to connect? I guess both ends to the voltage feed and the thin wire to the ground? Should AC or DC be preferred when testing?
Thanks!
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