/diy/ - Do It Yourself

>>315245
the music scene around here is pretty booming and most people cant afford the 350+ price point of ZVex pedals. I can make clones for like 30 dollars. Theres a local music shop that would probably stock them and I bet if I sell them at the price point of BOSS pedals they'll fly off the shelves. Till I get sued.

>>315207
diy layout creator. Great program other than the fact that it is slow as fuck.

I wonder how the market is for these handmade pedals. I'm trying to get a startup going with them. theres certainly enough interesting circuits floating around online to start a line of handbuilt pedals without even designing any yourself

>>315200
Its more or less a clone of the ZVex super hard on, a boost/distortion. They claim its a clean boost but I have the actual pedal and its got a gain factor of like 3600 (with 2 together). I like it though.

Heres the revised circuit

>>315159
they were designed to use really high amperage for some reason. They made tubes for literally every possible use

But that aside, do you know how to design on of those power supplies or have any documentation on how to do it?

>>315144
yeah no kidding. I mean, you can fudge a lot of things while building them but to make them for a market that wants amps in a 200-500 dollar range its near impossible. Unless you go single ended

>>315099
the reason they havent been bought up is cause almost no amps use them. I just cant believe the only tubes that sound good in guitar amps are 6v6, el34, el84 and 6l6 (along with kt88's for bass amps). They designed literally thousands of tubes, there have got to be some good sounding ones. And even if they only sound 3/4ths as good, they are 1/20th of the price so they bring the costs way down

>>315114
ok now I like this idea, I just have no idea how to get this to work. I need 3 b voltages for the amp I want to build, 200 volts, 180 volts and 170 volts. Now since I'm dealing with vacuum tubes they can be +/- nearly 20% but they still need to be closeish. How could I build a rectifier that would get close to that? I believe the power tubes draw 1.2 amps each and I forget what the 12ax7 plate draws but I think its about that

also, heres a circuit I found that I want to build. How bad did I fuck this up? I believe the transistor is in backwards on the perfboard, but what other mistakes did I make?

>>314950
do you know anything about 6dg6gt tubes by any chance? They're very similar to 6v6 tubes aperently, and you can get NOS RCA tubes for a dollar each on ebay. I planned on building the amp around those tubes. Know anything about them?

>>314935
I know I can just buy them, I wanted to try and salvage them though if I can. I want to start building amps in small quantities to sell on the side, and power transformers cost like 50 dollars or more.

>>314925
yeah, guess so. I really just want to scavenge them. I think newer tube (i mean tv's from the 90's) have transformers of +10k volts so they wont work.

>>314928
no I know I could just buy them but I want to salvage them if I can to keep cost down

Hey guys

So I'm geting into building tube amps. Ive read up on everything so I have a decent grasp of how it all works. The only problem is finding high voltage power transformers. Does anyone know what old electronics (besides things that use tubes of course) that are easy to find and have PT's of 200 watts or more?

You know theres a board called /o/ right?

We know shit about cars there