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Preamp mods
#13
I only know simple amps. But for a Tweed Fender champ style amp, I was thinking of sacrificing one of the inputs to put a switch, that would, connect to the cathode of the second half of the 12ax7.
Position 1. add a bypass cap on cathode (by attaching the cap to ground)
position 2. attach negative feedback.
Position middle. do nothing

This is not my idea of course. And it might be advantageous to build it in an external box. That way I can see what I like by clipping it in the right places, and then decide which to do. I mean, often times I find what I like on an amp and don't change often.
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Messages In This Thread
Preamp mods - by K O'Connor - 08-22-2018, 04:25 PM
RE: Preamp mods - by Vostre Roy - 11-14-2018, 09:16 PM
RE: Preamp mods - by K O'Connor - 11-14-2018, 10:31 PM
RE: Preamp mods - by Vostre Roy - 11-17-2018, 03:01 PM
RE: Preamp mods - by Strelok - 04-16-2021, 06:54 AM
RE: Preamp mods - by K O'Connor - 04-16-2021, 08:07 PM
RE: Preamp mods - by makinrose - 04-17-2021, 12:47 PM
RE: Preamp mods - by Strelok - 04-20-2021, 11:32 AM
RE: Preamp mods - by galejt - 01-24-2022, 08:23 PM
RE: Preamp mods - by K O'Connor - 01-24-2022, 09:15 PM
RE: Preamp mods - by Strelok - 03-09-2022, 08:37 AM
RE: Preamp mods - by K O'Connor - 03-09-2022, 12:55 PM
RE: Preamp mods - by Drew1d - 04-25-2023, 05:49 PM
RE: Preamp mods - by Drew1d - 04-25-2023, 05:55 PM
RE: Preamp mods - by K O'Connor - 04-25-2023, 07:19 PM
RE: Preamp mods - by Drew1d - 04-27-2023, 03:12 PM
RE: Preamp mods - by K O'Connor - 04-27-2023, 05:20 PM

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