Tube Amp Archive

That looks like a zvex super duper 2-in-1. Basically two super hard on boosters: one cascaded into the other. I like the copy I made. Be careful with the gain and volume. Nothing too exciting circuit-wise. Good luck.

Patrick

Fun ideas guys. I like where this is going. The preamps aren't too bad -- more tweed so I hear (there's a clip on the internet: https://www.youtube.com/watch?v=vIEIyrsl5Fs ). Not bad, and I'd like to keep it (unless I get bored). The two preamps don't utilize both sides of the PI: they link together...

Hey everyone- I don't post a lot, but when I do, it's to this board. :) Anyways, I took advantage of the cheap Judybox amps from a while back, and surprisingly, mine was in 'okay' condition (same crappy soldering, wire all over, etc.). It did work out of the box and sounded nice, but I thought it wa...

I usually use a 15W bulb to severely limit the current so I don't blow anything up (almost did the first time I built this amp!). But, I will give it a try with a 40W bulb when I get home. I was just concerned that the IEC filter might cause something weird to happen, but after I looked over my wiri...

Hello- Quick question: I installed an IEC filter on a working amp to cut down on some hum/Buzz/stuff. I live in an older house and there are overhead power lines, so I'm guessing there's interference. After I installed the IEC filter, I checked the amp (was working, just out of the cabinet for other...

only catch with the hammond is that there isn't a 5vac or second 6.3vac winding if you were thinking of a tube recto. not that I'd go tube recto... but i'd be looking at a decent size sag resistor. works for dropping voltage and giving a lil liveliness. without it, even the 520VAC of the hammond se...

Okay. So I'm trying to find a transformer that will work for this build. Since I want to build it as a combo amplifier (because I have a 1x12 ax84 October build in one that sounds awesome), I'm trying to find a laydown PT. For some reason, the vertical mount PT scares me in a combo. Anyways............

Looks like I'll just have to omit the NFB from the Songwriter circuit. Not that there's an issue with that....

Thanks guys! Glad to know that I'm on the right track. Just need to track down the transformers (and chassis, and other parts, etc.) and I'm on my way.

Patrick

Thanks for the response. If it's that easy, then that should make things simple. What I'm aiming for is using the 2 preamps (Songwriter and Rocket) in a style like the DC-30. Two jacks on the front panel - one for the Songwriter, one for the Rocket (plugging into whichever sounds good that day, mayb...

I have a quick question. I think I know the answer, but I'm not exactly sure (I'm just a slight step above tube noob). When I look at the Trainwreck Songwriter (parallel 12ax7) and Rocket preamps, they are not in phase. Correct? If so, that means if I wanted to do a two channel preamp with each prea...

I think the first is a Russian tube. I have some of the same type, except labeled 'Made in England' from El Menco. The giveaway is that they have flying saucer getters. Research (intertoobs) tell me that they likely are the 6p14P type. When I had a SE EL84, I tested them - nothing exciting, but held...

These guys took the idea from other sites and ran with it to sub JFETs for tubes. http://www.runoffgroove.com/fetzervalve.html This article shows how to replace a tube with a JFET (not perfectly, of course). Normal bias is 1/2 V+ (with a 9V supply, ~4.5V), but you should set it to ~4.5V, but then tu...

I have nothing to say. I can't. Phenomenal.

Patrick

P.S. I can't wait to build mine.....someday.....

Like everyone else: Thanks for all the pictures. Super nice of you to share with all here.

Patrick

Omar wrote: I plan on updating it after the New Year as I have some other things in store.

Omar

I'm a little scared by the last half of that comment *ducks for cover*

Omar RULES!

Patrick