Tube Amp Archive

Gentlemen, IM the living embodiement of the difinition of insanity; doing the same thing over and over expecting different results. I just agreed to trade my Blues JR for ANOTHER Deluxe Hot Rod. Only difference this time is i got him to agree to leave it at my house for the weekend so I can put it t...

Firestorm wrote:HT=High Tension (in British parlance). Means high voltage versus the 6.3V filament supply and the +/-16V supply for the solid state. The windings off CP11 and CP12 followed by the B+ supply coming off the diodes.

Got you

Is there any chance at all that this was just a bad Power tube, and fixing it (after replacing any burned component) is just putting new tubes in and properly biasing them. I figure if this becomes to big an expense, ill either build just a amp, salvage what I can from this one, and use the cab. I o...

[quote="Firestorm"]In this amp, the standby switch is located on one of the HT secondaries, so with the amp in standby mode only the tube filaments, bias supply and the +/- 16V supply for the op amps are getting any juice. Since the fuse didn't blow in that scenario, you are likely looking for an HT...

I see how to use the lightbulb limiter new. My laptop is busted, so it was difficult to see on my phone. I'm going to print out all the threads at work so I can have them on hand. 1 benefit of. This;when I'm done, ill have more knowledge about this stuff

Ill make one, in the meantime. The fuse didn't blow, matter of fact, I had it on standby for several minutes. Like I said I threw it off standby for a moment, the spark looks like its coming from the chassis just above the OP T., or the tranny itself. It emits a small amount if light smoke, which wo...

How do I hook it up? To the amp? And I still don't know if I'm supposed to turn the amp on in standby mode or not

Again, I want to thank every1 for their help. I've been a member of Fenders forum, though have thought of not going back. All the helpful people that were there are gone, replaced with people who seem like they're 15 years old. I work mostly as a luthier & helped countless people, including sending ...

I don't have one. Will radio skank have it? How $? When I power up, does it stay on standby, or fully on? When I have what I need. My gm father probably has one, he restores old tube radios

I haven't taken the chassis off yet, but the power tubes look okay, again I have to take the chassis out of the cabinet. But im not doing that until I know if IM supposed to take it off standby. I flipped it off standby for a split second and it sparked again. I have all the tubes out, and drained t...

When you say power up, do you mean while still in standby? Because it does, but I don't want to take it out of standby if I'm not supposed to

Will do, thanks for the tip

Called the TV repair place down the street from me (if you can believe they still exist) the do mostly juke box repairs. ANyways, I did a transformer upgrade for them for one of their customers for free last summer. I have no other 6L6's at the house (i deal mostly with 6V6's and EL's). Asked him if...

I just wish everything wasnt board mounted. I wanted to replace the pots on a Blues Jr, but that guy Bill M said it wasnt a good idea. Havent read far enough to find out why. Maybe I should get that book on tube amps. I can setup a Strat, tele, LP with my eyes closed, but amps are a new frontier. Th...

I will do all of these, in the order you mentioned. I have to go out and get some 6L6's though. I have none on hand, and im sure the ones in there are bad, i have to get my fathers tube checker to see. You guys have been a great help, even if it turns out that none of it works, you still have been a...