[R-390] [Fwd: R-390 Rplacing 6082 With Splid State]

[Al Solway]

 To All,
 
 I refer to The FAQs, Pearls Of Wisdom/Power Supply, compiled by Wei-Li.
 This is a compilation of information by subject that is easy to access.
  
 Http://www.r-390a.net/pearls.htm
 
 Within the power supply section, around the April 2000 time frame or
 about half way through the P/S section. Dr Gerald Johnson describes a
 solid state replacement that he has "scratched out on paper with
 components chosen. Its not been tested." Dr Jerry indicates that his
 circuit would use a couple of IRF820s three zeners and a TL431A1Z plus
 some resistors and caps. There is additional follow-up discussion from
 Barry Hauser where he describes a solid state replacement for 6082s in
 an 391 he had acquired.
 
 I recall that within the past few months there has been some talk on
 this topic but can't seem to find anything specific on the circuit.
What
 I would like to know is where to get more info, a schematic and a list
 of parts. Also has any body tried Dr. Gerry's circuit.
 
 I am restoring an R-390 and have decided to go the solid state route
for
 the 26Z5 and 6082 if I can get the above information. I have ordered
 6080s to replace the 6082. I have selected a filament transformer, the
 Magnetek VPP12-4400 or the Hammond 183K12. If everything works out as
 planned all this will be reversible using plug and play modules.
 
 I know all this has been covered before but discussion would be
 appreciated.
 
 Al