psecody
Member
Well I'm about to get my income check back and was thinking about buying a new tube amp but I've also been wanting to get back into the electronics hobby and so I had an idea at about 2 this morning to design my own amp and learn more about them. While researching in google I came across the schematics to a Marshall 2555 Jubilee which is the amp I was going to buy two years ago but got screwed on my income tax return and ended up having to pay money instead of getting anything back. This is an amp from 1988 and when you find one they're usually about $2-3000 for the amp. I haven't had that kind of money in a long time, I was planning on spending $400 on a cheap tube amp but after looking at these schematics it isn't really that complex of an amp so I'm going to try building one (mainly because I would love a jubilee).
Anyway I don't have much experience with audio electronics (besides turning my amp on and adjusting the knobs) but I think I can do it. I need some help though so I figured I would ask the experts here. I'll also try to document the project as I do it so that anyone else interested in building this amp can look at it.
So these are the psu and the main board for the amp.
My first problem I've run into is I can't figure out where the psu attaches to the rest of the board I've got the psu figured out and already have most of the parts for it in my scrap bin and am going to get started on it this weekend then I plan on tackling the beast that is the main board. Question 2 just thought of would I want to use 1/4w, 1/2w or what for the resistors in the psu? I've never built any project that called for more than a 1/8w resistor so I figured I'd ask..
Anyway I don't have much experience with audio electronics (besides turning my amp on and adjusting the knobs) but I think I can do it. I need some help though so I figured I would ask the experts here. I'll also try to document the project as I do it so that anyone else interested in building this amp can look at it.
So these are the psu and the main board for the amp.
My first problem I've run into is I can't figure out where the psu attaches to the rest of the board I've got the psu figured out and already have most of the parts for it in my scrap bin and am going to get started on it this weekend then I plan on tackling the beast that is the main board. Question 2 just thought of would I want to use 1/4w, 1/2w or what for the resistors in the psu? I've never built any project that called for more than a 1/8w resistor so I figured I'd ask..