The Amp Garage

Cute circuit, the errors or omissions have already been noted. Just for the record, I don't use the Beltron brick and can't fit a coil inside a Verbrator :roll: . I use the Spin Semiconductor chip (which many people use in pedals and rack stuff and amps). 16-Bit digital and analogue in and out. It's...

There are tons of small switch-mode supplies available on E-bay now. Direct AC input, quiet DC output, small too. Less than 20 bucks...when I can, I get away from transformers and especially try to avoid heater powered relays.
They can be a pain in the ass on higher gain builds with channel switching.

A cut control (especially in an amp with negative feedback), isn't really a great idea.

Frankly, I wasn't impressed with the notadumble. It'll be interesting to see if the estate goes after them for the name. What amp did you play it through Andy? Your amps sound great by the way. The notadumble in front of your amps would just mess up an already good sound. Garden variety Fender Hot ...

The SSS power amp is similar to many audiophile designs, as well as borrowing design cues from the SVT, depending on the version you see. A PI and a cathode follower can allow drive up into grid current, although the SVT's had a pair of limiter diodes on the front end to stop that. One SSS design wa...

Frankly, I wasn't impressed with the notadumble.
It'll be interesting to see if the estate goes after them for the name.

Looks like he's endorsing them. I lose confidence rapidly when someone misspells the name of their "amp designer" (Jim Kelly instead of Jim Kelley)...sigh. Pricy stuff !

erwin_ve wrote: ↑Thu Feb 27, 2025 5:44 pm I looked up their patent on the "powerscaling".
Dual pot: one for regular master volume and 1 for changing the PI cathode resistor .
https://patents.google.com/patent/US20130028447A1/en

I gotta laugh at this. It's kinda like a lame excuse to get a patent on nothing special I guess.

Smart Belle is out of business. They did attempt a solid state "Dumble". It was about as successful as his solid state "Trainwreck".
I'll say this: Lance doesn't give up, although it does look like he may (finally) be out of the amp business.

Dan has been posting youtube and social media video chats in which he has been showing a "new 65 amps prototype", doing playing demos and taking questions from the audience. I don't know exactly what 65 amps is or will be at this point. They were indeed bought by BAD (not sure of the actual/financia...

I'm glad you are "impressed". I honestly think Carr amps sound pretty good. They feel and sound like a really good old BF Fender (likely because the circuits are basically similar).
I do have a real problem with any amp covered in useless silicone snot.

I've thought for a long time about making an adaptor for putting a 12AX7 or whatever number would work best, and an LND-150 fet to cover the third triode section and be done with it. You might even do it all FET's. You could change the socket to a 9-pin in some models (except most Ampeg's have them ...

I do wonder sometimes if it’s such a great idea to replace old caps when they are obviously in good condition, the rationale is people are looking for the sound and response from the vintage parts and I’m cutting them out and throwing them away. Of course my opinion maybe deeply flawed and if you s...

Maybe manufacturers like FUCHSAUDIO will start retrofitting a suitable MOV across each half-primary as a simpler and more direct way to mitigate such faults. It's not a substantial expense in production, although we never did it in 20+ years. We rarely get amps back with this type of failure. Hate ...

We use F&T and MOD in the shop. MOD's are a great value, most likely imported, but no reliability issues. F&T are top of the line, a little more money, but I think they sound a touch better. We use them in vintage amps always, especially since they are often owned by cork-sniffers. We use in our twe...