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Old 14th March 2019, 07:50 PM   #21
Soundhappy is offline Soundhappy  France
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Quote:
Originally Posted by Zen Mod View Post
Thanks ZM! What we see on BAF2017 video is one Mr. Pass builded example. It's with RCA single signal inputs.
What amazed me was construction minimalism.
Simple twin RCRCRC external psu noise filter, two volume pot's, input resistors, two pairs of jfet's,
two trimmers, 6dB or 12 dB jumper and two xformers.
Source selector is made with two position switch.
Yeah, no capacitors inside signal path!
Ok is not Super Symmetry( SUSY) , balanced but easy to make with few components from "treasures box"
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Old 14th March 2019, 07:58 PM   #22
Zen Mod is offline Zen Mod  Serbia
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B1 Xformer
Papa is cheapskate

proper ones are made complicated , cubic meter box full of yadayada parts , all that for pair of JFets feeding tiny xformer



(and yes, balanced one is SUSY)
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Old 15th March 2019, 01:55 AM   #23
Soundhappy is offline Soundhappy  France
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Burning Amp 2017 - Nelson Pass

Let's visualise video about B1 XFRMR
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