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Author Topic: Solid State Rectifiers  (Read 6267 times)
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Posts: 135

« on: April 27, 2017, 07:56:38 AM »

Attached is a list of suitable commercially available (surplus) International Rectifier plug in tube substitutions for 5U4, 5R4 etc. Enjoy and happy rectification.

* IR ST Series Data Sheet.pdf (236.34 KB - downloaded 781 times.)

Seth Taylor
Patrick J. / KD5OEI
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« Reply #1 on: April 28, 2017, 01:41:09 AM »

The ST12 - 8020 40KV type - is the perfect negative peak limiter going between the keep alive and the modulated plate supply. Been abusing one like that here for a long time and never a problem. Don't worry on the 100mA rating, peaks are 700mA and in the keep alive service the current is well within spec

Radio Candelstein
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