Search found 6 matches

by caesparza
Mon Apr 22, 2024 9:48 pm
Forum: Dumble Discussion
Topic: AN Wonderland/JM 100w layout
Replies: 271
Views: 113145

Re: AN Wonderland/JM 100w layout

Hi Ryan,

Thanks for the answer, I'm checking your thread on the amp, nice information over there!. I'll replicate the specified ground points.

Cheers mate.
CE
by caesparza
Sun Apr 21, 2024 2:29 pm
Forum: Dumble Discussion
Topic: AN Wonderland/JM 100w layout
Replies: 271
Views: 113145

Re: AN Wonderland/JM 100w layout

Is there a particular reason for the ground points marked as Ground at Send/Receive? Where is located that ground point?

I was thinking on grounding all filter caps at the same point.
by caesparza
Thu Apr 04, 2024 3:04 pm
Forum: Dumble Discussion
Topic: AN Wonderland/JM 100w layout
Replies: 271
Views: 113145

Re: AN Wonderland/JM 100w layout

Hi, Recently I acquired a late 80's Fender "The Twin" which has a double pot BIAS calibration system that works pretty well for setting the value and balance between the push-pull sections of the power amp. I would like to implement that type of topology on the amp. On the photos you can find 1) The...
by caesparza
Mon Mar 04, 2024 12:57 pm
Forum: Dumble Discussion
Topic: AN Wonderland/JM 100w layout
Replies: 271
Views: 113145

Re: AN Wonderland/JM 100w layout

Ok guys, thanks for your answers. I'll stick to the original plan and build the amp. I don't want to think about relays switching right now. I read on some other threads about a built in dumbleator having a positive result in the overall sound of the amp, with the added benefits of the improved effe...
by caesparza
Sun Mar 03, 2024 2:03 pm
Forum: Dumble Discussion
Topic: AN Wonderland/JM 100w layout
Replies: 271
Views: 113145

Re: AN Wonderland/JM 100w layout

Hi everyone, Starting my second build after a Marshall Plexi 18W that came great. I have a Twin Reverb 65 RI chasis with PT and Reverb Transformer. with a late 70's Ultralinear OT that I'm planning to use without the UL taps. The twin comes with an extra 12()7 tube. I was wondering if I should use t...
by caesparza
Wed Nov 18, 2020 9:09 pm
Forum: Vox/Hiwatt Discussion
Topic: Hiwatt 50W on Twin Reverb Chasis?
Replies: 2
Views: 1683

Hiwatt 50W on Twin Reverb Chasis?

Hi everybody. I have a Fender Twin Reverb 65 RI Chasis and Transformers available for a build. I was wondering if I could build a Hiwatt 50W amp on it? Sorry if this looks like a ridiculous question. I know the TR's Transformers put quite high voltage on the circuit that could work on the Hiwatt con...