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RE: Here's the iron and the parts...what's the project...???

Posted by Eli Duttman (A) on June 16, 2012 at 05:42:05

In Reply to: Here's the iron and the parts...what's the project...??? posted by Audiodyssey on June 15, 2012 at 23:58:51:

You've already described the B+ PSU, in general terms. Go pseudo dual mono, with separate 2nd LC sections for each channel, after the initial LC section that employs the "swinger".

B+ will be approx. 600V. How about "reissue" GEC KT88s working into the 5K primary "iron"? Tweaked Mullard style topology, with a CCS in the LTP's tail, will nicely take care of signal passing requirements. Definitely use high gm small signal tubes, not the low gm stuff shown in the seminal 5-20 schematic. An ECC99 in the LTP position "feels" right.

Eli D.

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