Tube Amp Archive

Thanks for the kind words guys! I actually own a commercial grade printer because i am a photographer, go figure, haha. But i took some thick photopaper and printed out a panoramic picture i took. Then i just took some glue and spread it evenly and just stuck it on there, turned out good and looks l...

I actually already broke down and went with something, i hate pondering around on one thing. Let me know what you guys think!!

I am working on the final stages of completing my amp build and i was thinking up a few ideas for the chassis faceplate. I stumbled on this one: http://trainwreck.com/images/p01.jpg A few days ago and i really like that idea better then the 1/8 thick piece of wood there. Does anyone know if that was...

Anything in the pictures seem to stick out? I am puzzled on the noise, I cant use it in the studio with that clipping noise, do you think one of the filter caps can be leaking? I am using weber caps.

I measure everything from one side of the heaters to the other side of the heaters and it read 6.3V. When i had them in parallel it was measuring like 8.4V or something retarded and my power supply was getting way too hot. I tried to wire it every which way in parallel but it would blow fuses, even ...

The HV was correct it was at 600V but when i measured the heaters they were at 8.4v and i had the secondaries hooked up parallel. I figured that wasnt right so i disconnected them and messed around with a few different wiring schemes and i found it only to read right when it was in series so thats h...

You said having your heaters wired out of phase would cause it to overheat like that? I actually did wire some of them out of phase because i knowticed on some of the originals the heaters were wired out of phase so i tried it to see what would happen. Do you think i should switch them all into phas...

I finally wired up the rest of the amp and decided to plug it in.. Nothing blew up, so were doing good! Then i put the tubes in, they fired right up. Only problem, I didnt get any sound at all so i looked at the OT and realized i forgot to ground it. I unplugged it, grounded the OT and BAM worked li...

Haha, yes i would agree, that is a good trick! Thanks paulster, All i have left is to wire up the power transformer and im done! I'm excited! Thanks so much for you help!

Thanks paulster! Youve been a great help. Lets make sure i got this correct. I have 2 pairs of 300V Taps. Pair (A) and pair (B). I will find the pairs by using my multimeter between the yellow and white. Should read 300V. Once ive distinguished the pairs... I will take White from pair (A) and Yellow...

Any answers to my previous question?

Okay I am looking at the francesca pics. 1. I see the 2 - 100 ohm resistors being grounded at the first power tube heaters. I understand now. 2. Power up the transformer with the heaters combined running a fuse through the hot side of the primaries. Red is the hot side correct? 3.Ground 1 pair of wh...

Okay. 1. Tie the Primaries together, (Red and Red, Black and Black) 2. Tie the Heaters together, (blue to brown and green to orange) 3. Fire up the transformer with a fuse. I dont really understand where to put the fuse in this situation.? 4. Okay so i understand how to find what white and yellow to...

Thx you!!

I am wiring up my PT.

https://www.antekinc.com/details.php?p=58

There are 2 sets of everything. 2 sets of 115V primary 2 sets of 300v sec. 2 sets of 6.3v secs.. Do i just wire one set up and cap off the rest or what? How do i know what primary goes to what secs? Thanks in advance guys!

I ended up getting the Antek for the PT. 45 bucks shipped, cannot be beat. https://www.antekinc.com/details.php?p=58 For the OT i got a webber tranny. $58 bucks for that one. https://taweber.powweb.com/store/wot45sch.jpg I do have a question, it can be wired 3400 or 6800 ohm.. How would i wire it to...