The Amp Garage

Sweet, I'm just about to finish a 2 tube rocket and this just got me pumped up.

I had a problem once with a mosfet amp I built with a burr working it's way through the pad and making contact with the device. You always have to watch that, especially around the mounting hole. Since then, I have always sanded and polished any surface used for sinking transistors. I hope your tech...

played it for an hour this afternoon and couldn't get it to do it anymore. I'm screwed.

I'm going to try a different direction before I tear into this thing. First the two 12" speakers in my combo cabinet are close to 30 years old and haven't been hit this hard in years so I have a new 10" 75 watter that I'm going to plug it into tommorrow and see if perhaps one of my drivers is to bla...

No those pots should be fine. That's pretty much the standard wattage for amps. Have you tried poking around with a chopstick while powered up? Be careful but a lot of times you can pin point the problem this way and find something you can't see. Well I chopsticked that first bad volume pot and fou...

Messed around a bit today and found my volume pot went off when I touched the ground so I changed it out to a new one and things got a bit better but started again. It seems when I try the bright switch or add any presence it starts up again and then I realized I used 1/2 watt pots throughout :oops:...

Sounds like you may have a heat related issue. Many times that can be a bad solder joint or ground. Double check all your solder joints and grounding. Usually when it does it, it's within 5 minutes of turn on , then it's fine. I'll be swapping out a multicap soon so I'll touch everything with the i...

Twice now when I'm playing at low volume, I got this fizzle sound on my notes. It sounds like scratching, and only when I play a note. The first time I shut it off and changed out my 12ax's and it was fine all night. It just did it again and I shut it down and brought it right back up and it's been ...

Working in the electrical industry it's common knowledge that windings in transformers have a polarity. I wonder if you swap ends on one of the windings you are trying to parrallel and see if it runs cooler then. Forgive me if you solved this already , I got lost on page 2 and may have given up and ...

Mont wrote:There is a guy on ebay that has chassis. search under guitar and instead of trainwreck type in choo choo crash.

That's a great price for those not set up to punch holes.

M Fowler wrote:If there any good I will stock up.

Hope it works out for both of you.

Have you tried to re start it using a current limiter (light bulb rig) just to see if it is showing an actual short ? Perhaps it blew due to a surge and your fuse is too small. I have no experience with the VVR rig you have there so I'm not sure if it has an increased current draw when you start tur...

passfan I ordered a chassis to see what his quality is like. I was amazed when I got them. I sat 14 lbs of transformer on them and they didn't budge. You can see it in my express pics in the OMFG thread. He builds a bunch of stuff from the AX84 site. They have a trainwreck front end over there with...

Hey I like your originality. I am going to use cap cans on my next Express as well as one large board all the way across for all the components or PCB :) Split the transformers up to reduce noise, no pot ground buss, insulated input jack and a few other things. And red wire. What do you mean by ori...

Here are some pics. My file sizes are too large so I'll link you guys to my photobucket page. You can feel free to poke around in the other albums as well. Their all based around different builds of mine with some of my guitar builds as well. enjoy http://s705.photobucket.com/albums/ww56/passfan1/Tr...