RE: Those are nice ! ....................As are those!

Posted by B. Scarpia on January 17, 2020 at 10:15:55

In Reply to: RE: Those are nice ! ....................As are those! posted by Cut-Throat on January 17, 2020 at 06:59:00:

The EF-86 input tube is a large determinant of the sound, as well as gain. We decided to lower the gain, especially as we went without NFB, by wiring the EF-86 in Triode. We also went from 6DJ8 in the second stage to 12AT7. The combination, EF-86 Triode, no NFB, and Ultra Linear output gave a sound indistinguishable from Triode output.

And we got to keep the 60 Horses! The 94 dB efficient 4 Pis are well driven by the 45's, but as you mention, it really isn't enough. Especially with the JBL's 12 LB. motors. 60 Watts now, that is what was missing from my life!

Interesting sidelight: When I arrived in Portland from my cross country jaunt, Steve was prepared to ditch the circuit in favor of his beloved 300B variants. He thought it was grainy and harsh with every combination.

We went ahead and cleaned up the bias supply problems I was having and completed the amps as above. Taking them up to his listening room he was astounded at the beauty of the sound being made in contrast to his units. He was using Sovtek KT-88s and I had the new production Gold Lions in mine. Never known a tube to present such a marked difference in sound.

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Follow Ups Full Thread

Topic - Does Schiit Come in Black? - erik 09:20:21 01/15/20 (21)

Yes. Just add Pepto Bismal. - ppopp 07:52:22 01/16/20 (0)

Yes, but you should see a gastroenterologist ASAP :) - Jay Buridan 07:37:52 01/16/20 (0)

Chacun à son goût, but I hate black personally - Feanor 05:28:14 01/16/20 (0)

RE: Does Schiit Come in Black? - KanedaK 13:40:02 01/15/20 (1)

That's why I ordered silver shit (lol) - erik 14:07:30 01/15/20 (0)

They Don't have blacks anymore - erik 09:24:13 01/15/20 (15)

Blackface Stereo Equipment was the DUMBEST thing evah! - JohnKutheRN 13:34:57 01/15/20 (14)

I'm with Model-T Ford! -NT - jedrider 07:54:06 01/17/20 (0)

Didn't seem to affect your choices :) - E-Stat 14:07:37 01/15/20 (0)

I'm going back to Silver myself .............. - Cut-Throat 13:40:53 01/15/20 (11)

RE: With all due respect to the Fish and The Royal Navy - B. Scarpia 16:31:59 01/16/20 (4)

Those are nice ! .................... - Cut-Throat 03:01:17 01/17/20 (3)

RE: Those are nice ! ....................As are those! - B. Scarpia 06:37:37 01/17/20 (2)

RE: Those are nice ! ....................As are those! - Cut-Throat 06:59:00 01/17/20 (1)

RE: Those are nice ! ....................As are those! - B. Scarpia 01/17/2010:15:55 01/17/20 (0)

1950s retrograde but I like it -nt - Feanor 05:22:23 01/16/20 (0)

Seriously beautiful.............. - classfolkphile 18:14:00 01/15/20 (0)

Oh that's gorgeous. - steve.ott@kctcs.edu 16:32:34 01/15/20 (2)

Thanks ! .................. - Cut-Throat 16:40:52 01/15/20 (1)

Solid State just can't give you the visuals of tubes! - JohnKutheRN 19:33:10 01/15/20 (0)

Sweet!! - JohnKutheRN 13:43:44 01/15/20 (0)

Follow Ups

RE: Those are nice ! ....................As are those! - B. Scarpia 01/17/2010:15:55 01/17/20 (0)

RE: Those are nice ! ....................As are those!

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