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RE: Follow-Up Questions

High-rel, high altitude (60000ft) version of 1641, full wave rectifier. 2.3KV PIV, 275mA average current. Designed and manufactured by United Electronics.

Look Up 1641

It has a 3 amp indirect heater versus a 2 amp filament in the 5R4

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Follow Ups Full Thread
Follow Ups
  • RE: Follow-Up Questions - Chip647 13:28:37 04/26/17 (1)


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