Tube Amp Archive

Kazooman Thanks so much for all your great pics after looking at them I see I have to make some minor alterations to my unit. The first is swap out the 9 pin tube socket there is a fault in it where it looses contact with the tube pins. It's just a bad socket. I will mount the tank like in your pics...

Thanks so much for the pics of mounting the tank. This will really help me greatly. I made a unit to spec and it sounds great. I just screwed in the tank to box which at certain times when giging makes the tank vibrate. I have to turn the unit off then wait then turn it back on so I think I am going...

I did some checking with the amp last night and found that the volume pots are not working as they should. At less than 1/4 of a turn the amp seems to be at almost full power there is really no loudness tapering at all. At less than 1/2 way it is at full power. I'm going to have to look and see if I...

I want to thank you all for your help and knowledge. I will be working on the ground issue and looking at all the ground connections. Probably will install a buss. If I still have an issue I will then isolate the jacks as this was a problem I had to deal with before on the other build. I know I'll f...

I am pretty sure it is a grounding issue at this point. I just haven't found where it is. The sound is surely is a 60hz hum. I have used a a good ground where I did a continuity check and then grounded all the accessible grounds as pots jacks board grounds among others which resulted in no changes a...

Thanks, a lot for all your info, I got the trany's from triode electronics. It contains a green/yellow and red/yellow wires which go to ground. Which was done. On my last build (I completed a 18watt) which I had first installed switchcraft jacks in the amp. I had to remove these and install the Mars...

Yeah, before I connected it to the current limiter and powered it up I re-flow all the connections made sure they were good. I also have been moving the wires around with the chopstick to see if that has any effect but it does not. I did not use a copper ground buss or brass plate but have multiple ...

I just completed 5E3 amp sounds great. However there is a low level hum that is present. When playing you can't hear it but in between tunes at a gig it is very annoying. I would like to cut that hum down. The hum starts when you turn up either volume single or double (both a little louder) and tone...