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22DE4 RCA coin base NOS 1970's (1 pair)

22DE4 RCA coin base NOS 1970's (1 pair)

$ 24.99

1 pair) 22DE4 RCA coin base NOS 1970's same date codes

 

Half-Wave Vacuum Rectifier

 

Damper Diode

 

22V filament

 

11 second warm-up

See more: vacuum tube
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