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BEST (Vint) Stereo Tube pre ckt for thick and rich sound ?

Posted by philb1 on April 26, 2012 at 10:15:47:
hi all. what are some opinions on best vintage tube preamp ckts (1950s-60s, not modern) that give a lush, high in 2nd order harmonic sound (vs dull, or odd harmonics, or clean as in wont soft clip) that soft clips easily. this is for 2 channel preamp for audio (vs guitar, inst).

my tech and i have experimented w several CATHODDE FOLLOWER ckts. IMO , these are the opposite of the sound i want (not knocking it, but i want Thick, Rich and full of Soft Clip and Harmonix-these are relatively Clean). As well as non Feeback type units (similarly , not what i like).

Can someone point me as to what TYPE or specific ckt's are the opposite of the above and also opposite in behaviour (as noted above - thick, rich vs clean and wont soft clip).

Mostly this should be SIMPLE ckts (1-2 tubes) prob in White Papers or RCA Tube Manual from era noted above . Many crappy Pre's ive heard from Stereo Consoles (tube) do this well-but WHAT type (ckt) are they ? I am pretty sure they are not Feedback and Cathode Follower types.

Thanks for any help - i need EXPERIENCED assistance as its getting Expensive to guess>build>then "no thats not it".

Again-THANKS !!!