Search found 9 matches

by TomAmp
Sat Jun 12, 2021 6:09 pm
Forum: Fender Discussion
Topic: The Donut Princess Build
Replies: 43
Views: 8943

Re: The Donut Princess Build

Not much luck :) let me be more specific Do you think this simplified arrangement that I sketched would work just as well? I can definitely see some similarities with the Hiwatt 70s PI (attached) which looks simpler. Do you see any merit in adding NFB like the SSS 002 has? I suppose that's easy to t...
by TomAmp
Thu Jun 10, 2021 12:58 pm
Forum: Fender Discussion
Topic: The Donut Princess Build
Replies: 43
Views: 8943

Re: The Donut Princess Build

Hi I’m really interested in this PP reverb! This is great work, congrats on the build! The videos are awesome The PP reverb seems less drippy than a standard Fender. On the other hand it is much cleaner, isn’t it? How does it compare with the modified Fender reverb that Dumble uses where he builds i...
by TomAmp
Tue May 25, 2021 3:00 pm
Forum: Dumble Files
Topic: SSS Schematics
Replies: 40
Views: 50589

Re: SSS Schematics

Got it, thank you Robert!

I had not appreciate that the CF added compression and sustain. Makes a lot more sense now
by TomAmp
Sat May 22, 2021 10:55 am
Forum: Dumble Files
Topic: SSS Schematics
Replies: 40
Views: 50589

Re: SSS Schematics

Hello everyone Obviously I’m digging out an old post! Hopefully no one will mind Looking at the SSS #002 schematic.. what is the merit of amplifying the dry and wet signals once more, having them go through a cathode follower, dump a big part of each signal to ground (if I’m not mistaken) then mixin...
by TomAmp
Tue Nov 10, 2020 6:56 pm
Forum: Technical Discussion
Topic: Suitable OT?
Replies: 6
Views: 312

Re: Suitable OT?

I’m told 4x6V6 is nicer than 2x6V6. Presumably the same is true for 4x6L6 vs 2x6L6 So if it turns out I like the flavour of 6L6, could I run 4x6L6 if I wanted to with a 50W, 4k OT? With a little bit of power scaling and an attenuator, can it be interesting sonically if the OT gets into saturation? M...
by TomAmp
Sat Aug 29, 2020 11:25 pm
Forum: Technical Discussion
Topic: Switchable JFET boost schematic
Replies: 3
Views: 429

Re: Switchable JFET boost schematic

Thank you!

The dumble 124 schematic makes a lot of sense, just need to figure out the footswitch
by TomAmp
Sat Aug 29, 2020 6:05 pm
Forum: Technical Discussion
Topic: Switchable JFET boost schematic
Replies: 3
Views: 429

Switchable JFET boost schematic

Hello

Was wondering if anyone has a good schematic for a switchable integrated JFET preamp/boost please? Footswitch even better

This preamp is promising but any other JFET circuits helpful
http://www.till.com/articles/GuitarPreamp/

Thanks
by TomAmp
Sat Aug 29, 2020 5:57 pm
Forum: Technical Discussion
Topic: Relay channel switching
Replies: 2
Views: 326

Re: Relay channel switching

Thanks!
by TomAmp
Fri Aug 28, 2020 1:11 am
Forum: Technical Discussion
Topic: Relay channel switching
Replies: 2
Views: 326

Relay channel switching

Hello

Has anyone implemented relay channel switching? Think that’s what is in the London pro.

I would like to be able to choose between channel A, B or A+B combined. Footswitchable better (to the extent it doesn’t add noise).

Thanks
Thomas