The Amp Garage

Hey Rick (kurtlives from DIYStomp)

I am pretty sure the 12AU7 draws 300mA per current when run at 12.6V DC using pins 4 and 5? Or are you talking about 150mA per triode?

I am going to add a inline fuse... Would I want a 3A slo-blow?

Will do, Ill also get some pics up.

All good thoughts guys, thanks. No I am not using a artificial centre tap. I do have the pilot lamp touching the chassis but no voltage is present on the part that touches. Doesn't it seem odd though how the amp has worked fine in the past and had these circumstances where things just failed? It hap...

About a month and a half ago I had a working Deluxe Reverb. At the time I was working on reducing hum and tweaking. Anyways one night I decide to redo the input jacks, re solder some grounds on the ground buss bar and shorten the choke's leads. I turn the amp on and let it warm up, I go to my bench ...

About a month and a half ago I had a working Deluxe Reverb. At the time I was working on reducing hum and tweaking. Anyways one night I decide to redo the input jacks, re solder some grounds on the ground buss bar and shorten the choke's leads. I turn the amp on and let it warm up, I go to my bench ...

Haha I hear ya Mark, Ive been busy to (especially this time of year).

Hooping to spend sometime with it tomorrow night hopefully, Ill let you know.

Mark in between finishing my 18W and working on my Deluxe Reverb I haven't had the time to work on this little project.

I am going to try and tackle it this weekend though, Ill let you know how it goes.

Ya Mark I am still having troubles unfortunately.

I wouldn't think the pot's taper would be the issue. But anyways what pot would you suggest?

Whats that Bronco? Modified Vibro Champ...

I tried a high value cap to block the DC on the trem line of my VC. 2200u/35v. It succeeded in preventing the problem but also reduced the trem affect a little. I removed it but if your effect is strong enough you may be ok. Or use a larger value cap. Disconnect the outside wire on the trem intensi...

I tried a high value cap to block the DC on the trem line of my VC. 2200u/35v. It succeeded in preventing the problem but also reduced the trem affect a little. I removed it but if your effect is strong enough you may be ok. Or use a larger value cap. Disconnect the outside wire on the trem intensi...

that circuit uses a cathode follower as a buffer..... it will have a voltage present that will raise the bias point of the tube thats its hooked to (cathode) to the point of shut off....... its because the 50k pot goes to ground and acts as a variable bias voltage...... go to the fender pages at sc...

What taps of the Weber transformer are you using? The 540V AC or the 680V AC? On my DR built I used the 540V AC and pulled my hair out for the longest time trying to figure out why my B+ was 398V DC (not under load). Finally switched to the 680V AC and got a B+ of 496V DC (not under load). Pissed me...

Hello I have a problem that I cant figure out and you seem like a knowledgeably bunch of guys so I brought my question here. I just finished adding a tremolo effect to my Valve Jr. I used the Vibro Champ style of trem circuit (nice and simple just one tube). Anyways it works but when the trem is not...