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Title: Solid State Rectifiers Post by: kc2we 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.
Title: Re: Solid State Rectifiers Post by: Opcom 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 AMfone - Dedicated to Amplitude Modulation on the Amateur Radio Bands
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