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Sparton 4940 RF EHT supply.

6SN7 with triodes in parallel functions as a self oscillator with the RF coil. EHT is rectified by a 1B3.

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Uploaded on February 20, 2017
Taken on February 19, 2017

Sparton 4940 RF EHT supply.

6SN7 with triodes in parallel functions as a self oscillator with the RF coil. EHT is rectified by a 1B3.

388 views
0 faves
0 comments
Uploaded on February 20, 2017
Taken on February 19, 2017