Thread: RCA Test Oscillator, ca. 1929
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Old 05-31-2012, 05:13 PM
bob91343 bob91343 is offline
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Join Date: Nov 2010
Posts: 745
It's a beauty; I would love to have just the vernier dial. What circuit does it use? I see an 80 tube, which would be a rectifier, yet you are running it on batteries.
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