I'm finding the "how"...

Tweakers' Asylum

Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ.

Posted by 1973shovel (A) on June 16, 2021 at 06:07:59

In Reply to: No. (nt) posted by Tre' on June 15, 2021 at 21:05:13:

...but nothing on the "why". Apparently John Curl thought there was a positive result from the late Mr. Crump's mod though.

One of my tube preamps may be regaining some lost real estate if the new, much smaller, B+ regulator works out. That will allow me to install a physically larger, hopefully better, pot or attenuator than the Alps blue I've been using for years.

The phono section needs to see 250K though, which is why I was curious if the Crump mod increased the impedance.

I'll do more searching on the subject.

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Follow Ups Full Thread

Topic - The Bob Crump TKD pot mod for the blowtorch preamp - fastcat 14:45:29 06/14/21 (11)

RE: The Bob Crump TKD pot mod for the blowtorch preamp - Tre' 21:34:32 06/14/21 (9)

Any idea of the theory behind doing this? (nt) - 1973shovel 06:05:53 06/15/21 (8)

RE: Any idea of the theory behind doing this? (nt) - fastcat 17:38:03 06/21/21 (0)

No. (nt) - Tre' 21:05:13 06/15/21 (6)

RE: No. (nt) - B. Scarpia 04:44:35 06/20/21 (0)

I'm finding the "how"... - 1973shovel 06:07:59 06/16/21 (4)

RE: I'm finding the "how"... - Tre' 15:28:01 07/01/21 (3)

RE: I'm finding the "how"... - fastcat 18:21:48 07/01/21 (2)

He could hear the differences - driver 19:18:10 07/02/21 (0)

RE: I'm finding the "how"... - Tre' 12:26:40 07/02/21 (0)

RE: The Bob Crump TKD pot mod for the blowtorch preamp - Jonesy 20:56:22 06/14/21 (0)

Follow Ups

I'm finding the "how"... - 1973shovel 06:07:59 06/16/21 (4)

RE: I'm finding the "how"... - Tre' 15:28:01 07/01/21 (3)

RE: I'm finding the "how"... - fastcat 18:21:48 07/01/21 (2)

He could hear the differences - driver 19:18:10 07/02/21 (0)

RE: I'm finding the "how"... - Tre' 12:26:40 07/02/21 (0)

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