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Tube from SG
mikethedruid
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Posts: 1,824
Threads: 114
Joined: Jul 2014
City: Sneedville, TN
#2

07-19-2019, 10:48 PM
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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Tube from SG - by vecher - 07-19-2019, 09:29 PM
RE: Tube from SG - by mikethedruid - 07-19-2019, 10:48 PM
RE: Tube from SG - by morzh - 07-19-2019, 10:56 PM



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  1. The PHILCO Phorum
  2. Various and Sundry Categories
  3. Test Equipment