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RE: OPTs

Posted by sober1 (A) on August 13, 2014 at 08:12:54

In Reply to: OPTs posted by andy evans on August 13, 2014 at 02:44:06:

->>You could use a separate PSU chassis if you wanted to get elaborate. If it were me I'd convert it into fixed bias to lose the cathode bypass cap and I'd try to use some DHTs in the input and use an interstage.

Sounds like my 2A3 mono blocks with separate PS chassis build I have on the drawing board. I've been collecting vintage parts for the build. I have massive Hammond Organ multi-tapped mains transformers and huge SET OPTs I bought here on AA Trader.

This is will be my first scratch build. I'm going into this build with no preconceived notions that it will go smooth or that I won't smoke some components. I have not decided on my circuit topology yet but I plan on using RCA manuals for my guidance. I like the Japanese builder's (name fails me at the moment) philosophy of like feeding like with iron coupling.
Design goal is to closely emulate mesh plate 45 SET sound utilizing plentiful, obscure and INEXPENSIVE tubes. Not very original, I know.

Life is not a journey to the grave with the intention of arriving safely in one pretty and well-preserved piece, but to slide across the finish line broadside, thoroughly used up, worn out, leaking oil, and shouting GERONIMO!

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