The Amp Garage

The schematics above are for the main circuit in general, and a Marshall that could be modded to Naked spec, not a full schematic of the "Friedman" Naked amp. I use quotes because this is not his circuit, but rather a clone he made of the Naylor Superdrive (the reason he called it Naked. Tip of the ...

Hey, late to the party, but what sort of performance do you expect to get out of this circuit?

One quick note here, but I ordered a few test logo badges, and due to some kind of mixup with their checkout flow, I had to re-do my cart like 3 different times. The last time apparently I'd forgotten to check the box that says I don't want their auto-generated project number to appear. So I got lik...

Thanks for the info, all. Holy cr@p, that thread is like 15 pages long! I messaged Dave on his Rocking Class Facebook site, and he messaged me back only just saying that it was a Ken Fisher prototype. Based on the size I figured maybe 8-10 watts. 6V6 or similar? Ok, that sounds interesting. I guess ...

Hey all, I got a pair of transformers I thought (ie, was told) were trainwreck spec transformers from Pacific. THey've sat on my Tranny shelf for a couple years. I finally got around to looking up the spec sheet for a build I had planned, and couldn't find them. I called Pacific and was eventually a...

Zero ohms? It looks bypassed.

I've got a 3 channel build in the works. I'll try and get some pics.

Here are a few things that may help. Updated link for the originally posted one: https://sound-au.com/project163.htm Re: voltage (From Lauri): Maximum recommended supply voltage for 40175 is 15V. V+ can be anything from 5V to 15V 4ch_Switcher.jpg From my project notes: GND - All grounds connect to ...

Posted to the PCB forum on this site: https://ampgarage.com/forum/viewtopic.php?f=17&t=31438 There is a full Gerber file you can download. Upload it at jlcpcb.com, and for like $20 you can get 5 PCB's made. Buy the parts to populate the board, and for good Karma, maybe offer the remaining boards to ...

One of my personal favorite pieces of Wreck History... ... t's impossible to know the model or the real story but my speculation was that a PT from a TV set would certainly need to support a bunch of tube heaters. Could this be the origin of the Wreck PT? Wow, that IS cool. I love all the little ba...

Holy cr@p! 10A on the filaments?! I had no idea...

I received a polite request to not trace the board out publicly, so I'll honor that request. That said, I did get a rough description from them. "basically two gain stages into a cathodyne with fixed bias. I believe one tube section was either paralleled or not used on the driver tube tube." I'm not...

I thought I read somewhere that the high cut doesn't like to be in a circuit with NFB? I could be totally wrong. That said, I installed on in an old split-channel JCM800 "test bed" amp I'd been abusing, and it sounded amazing. Really allowed me to tailor the high end response. That really helped, as...

Hey all, Picked up a Fuchs Blackjack 21 recently. Great sounding amp. They say it's supposed to be TW inspired, but it only has 2 preamp tubes as well as the pair of 6V6's. Not terribly loaded with Gain. That can only lead me to believe it's based on one of the "Blues" Rockett variations with a cath...

Ok, no problem. I’ll see if I can draw it up tomorrow.