Search found 156 matches

by pullshocks
Fri Apr 25, 2025 4:29 pm
Forum: Dumble Discussion
Topic: ODS Filtering Question
Replies: 67
Views: 9784

Re: ODS Filtering Question

Side question--I had not heard of SC capacitors before. Who sells them?
by pullshocks
Wed Dec 25, 2024 12:46 am
Forum: Dumble Discussion
Topic: True Dumble stories as told by Rick Wheeler
Replies: 22
Views: 5571

Re: True Dumble stories as told by Rick Wheeler

Reading this story, I was reminded of RF's remeniscences that came out after HAD passed away. He was gracious and respectful, did not let any ill will show through. Took the high road...
by pullshocks
Thu Dec 05, 2024 10:17 pm
Forum: Dumble Discussion
Topic: 5watt Dumble Amp Build
Replies: 7
Views: 1581

Re: 5watt Dumble Amp Build

Martin Manning was working on a low watt ODS that looked really great. Not sure if he has finished it. https://ampgarage.com/forum/viewtopic.php?f=4&t=37090
by pullshocks
Mon Oct 21, 2024 5:46 pm
Forum: Technical Discussion
Topic: new tonestack calculator
Replies: 5
Views: 1244

Re: new tonestack calculator

Thanks for posting this. I like the "stupidly wonderful" one-knob controls.

Having to scroll through the circuits instead of using a drop down menu is a minor drawback.
by pullshocks
Fri Sep 27, 2024 8:08 pm
Forum: Marshall Discussion
Topic: Buzzy distortion in Marshall style preamps?
Replies: 8
Views: 7943

Re: Buzzy distortion in Marshall style preamps?

With consideration that this is the Marshall forum, let's compare some schematics and incorporate the 2204 which is what the P1/SEL is taking inspiration from: Right off the bat, there's a wide swing in voltages, with yours unsurprisingly being the lowest. Marshalls typically have their preamp volt...
by pullshocks
Wed Sep 25, 2024 4:55 am
Forum: Technical Discussion
Topic: What is causing buzzy distortion in the preamp?
Replies: 55
Views: 15170

Re: What is causing buzzy distortion in the preamp?

Wild ass guess: on the 2nd stage, try a lower value cathode bypass cap. Your schematic shows a 22uF in that position. Different preamp arrangement than the one you are working on, but the Fender Champ AA764 only uses 2 uF in that position I have the 25uF in that position on SE 6V6 amp I'm working on...
by pullshocks
Mon Sep 09, 2024 9:55 pm
Forum: Garage Talk
Topic: Trouble getting into the forum
Replies: 40
Views: 12588

Re: Trouble getting into the forum

I can log in to the forum, but get a message "The requeted information cannot be found." The only way I can get to the forums is by using a search window "Board Index" and other navigation buttons are broken or glitchy.

Strangely, the Private Message system has been functional the whole time....
by pullshocks
Mon Aug 05, 2024 4:20 pm
Forum: Garage Talk
Topic: AX-84 data sources?
Replies: 3
Views: 3814

Re: AX-84 data sources?

The AX 84 forum was re-homed to the site below. Very little current activity, mostly bots. A lot of old content is preserved there, but accessing it via the search window was problematic last time I tried https://perpetualinnovation.us/MyBBDir/ Many but not necessarily all of the AX84 documents can ...
by pullshocks
Sat Jun 22, 2024 5:35 am
Forum: Dumble Discussion
Topic: New Project
Replies: 36
Views: 12540

Re: New Project

Any progress on this project/
by pullshocks
Thu Jun 13, 2024 7:38 pm
Forum: Technical Discussion
Topic: Has Anyone Built a Tone King Imperial?
Replies: 16
Views: 5137

Re: Has Anyone Built a Tone King Imperial?

https://www.youtube.com/watch?v=MpF88ondW4Y Here is one you tube that demonstrates the mid bite control than any others I have seen. Bing Videos I am a sucker for good amp demos. This is the one that fostered my interest in the imperial https://www.youtube.com/watch?v=FPVeJvWGG3Y I have not built t...
by pullshocks
Sun May 26, 2024 9:43 pm
Forum: Technical Discussion
Topic: LAR/MAR PPIMV bypass pop noise?
Replies: 9
Views: 2167

Re: LAR/MAR PPIMV bypass pop noise?

i recently wired up my 6V6 SE amp with the Imperial preamp as in the attached schematic. It sounds great, My amp has a master volume and I do not play loud enough for power amp overdrive to be a factor, unlike the real Imperial where power amp overdrive is a big part of the sound. But I like it for ...
by pullshocks
Thu May 23, 2024 2:57 am
Forum: Technical Discussion
Topic: Strange pilot light experience
Replies: 8
Views: 1647

Re: Strange pilot light experience

Nice troubleshooting
by pullshocks
Fri Mar 29, 2024 7:33 pm
Forum: Garage Talk
Topic: Its gonna be a party
Replies: 9
Views: 8608

Re: Its gonna be a party

You're going to love it
by pullshocks
Mon Mar 25, 2024 9:32 pm
Forum: Dumble Discussion
Topic: New Project
Replies: 36
Views: 12540

Re: New Project

For my 6V6 SE power amp I followed the AX84 5 watt building block but with 302 volts on the plate due to a different PT and 5Y3 rectifier. Most say a tube rectifier is pointless with SE but I wanted the option to try it with different voltages. The AX84 schematic includes a ability to tweak cathode ...