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Ampeg tone stack modification
#27
(11-13-2014, 06:58 PM)beedoola Wrote: I installed the mod board I got from Steve (Hangman) today. I don't recall seeing any pictures of the mod board installed online. I should have taken pictures.

I initially tried installing it on the component side but I left the leads too short and the board wouldn't bend back far enough to allow the MID pot to go back to its proper position. I removed the board and then installed it on the trace side of the control board - there is enough room between the control board and the main PCB that the mod board can reside without touching anything.

I was able to get the control board out without having to unscrew and move the main PCB.

I also replaced C101,102,103 and 104. I couldn't get 250pf silver mica as Steve suggested in the article linked in this thread's OP, but I used 250pf SMica 500v. I also replaced c105.

The amp sounds REALLY good. To me the overall tone is much more clear, open, tight. I'm very pleased with the results.

Thanks Steve!!

Steve,

How do we go about ordering some of these? I didn't know they were ready to ship out!
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Messages In This Thread
Ampeg tone stack modification - by Hangman - 08-25-2013, 12:42 PM
RE: Ampeg tone stack modification - by tdbassman - 07-01-2014, 05:07 AM
RE: Ampeg tone stack modification - by Hangman - 07-01-2014, 09:39 AM
RE: Ampeg tone stack modification - by Hangman - 07-06-2014, 07:06 PM
RE: Ampeg tone stack modification - by tdbassman - 07-07-2014, 05:19 AM
RE: Ampeg tone stack modification - by Denton - 07-15-2014, 04:04 AM
RE: Ampeg tone stack modification - by Liquids - 10-03-2014, 01:47 AM
RE: Ampeg tone stack modification - by Hangman - 10-06-2014, 05:36 PM
RE: Ampeg tone stack modification - by Hangman - 10-22-2014, 08:12 PM
RE: Ampeg tone stack modification - by Liquids - 10-24-2014, 03:08 AM
RE: Ampeg tone stack modification - by Hangman - 10-23-2014, 09:22 PM
RE: Ampeg tone stack modification - by Hangman - 10-24-2014, 09:45 PM
RE: Ampeg tone stack modification - by Hangman - 10-25-2014, 11:56 AM
RE: Ampeg tone stack modification - by Liquids - 10-26-2014, 04:46 AM
RE: Ampeg tone stack modification - by Hangman - 10-26-2014, 02:40 PM
RE: Ampeg tone stack modification - by syscokid - 11-03-2014, 01:55 PM
RE: Ampeg tone stack modification - by beedoola - 11-05-2014, 05:02 PM
RE: Ampeg tone stack modification - by tdbassman - 11-08-2014, 09:50 AM
RE: Ampeg tone stack modification - by Hangman - 11-10-2014, 12:02 PM
RE: Ampeg tone stack modification - by tdbassman - 11-12-2014, 08:46 AM
RE: Ampeg tone stack modification - by Hangman - 11-12-2014, 08:19 PM
RE: Ampeg tone stack modification - by beedoola - 11-13-2014, 06:58 PM
RE: Ampeg tone stack modification - by itsonlyadam - 11-13-2014, 07:46 PM
RE: Ampeg tone stack modification - by Hangman - 11-14-2014, 12:06 PM
RE: Ampeg tone stack modification - by Hangman - 03-07-2016, 04:30 PM
RE: Ampeg tone stack modification - by Liquids - 03-07-2016, 04:57 PM
RE: Ampeg tone stack modification - by Leboully - 01-30-2017, 07:52 AM
RE: Ampeg tone stack modification - by Hangman - 02-01-2017, 07:34 AM
RE: Ampeg tone stack modification - by Leboully - 02-07-2017, 01:32 PM

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