Hoffman princeton reverb, tremelo speed

[Stuff4bikes]

Tremelo speed is way to fast. 1 on mine is like 10 on a normal circuit, half way is like a machine gun.
I tried the .02 on the middle and first cap separately and it just kills the tremelo completely.
Also I think my new blackface style footswitch is faulty...

[tubeswell]

Somewhere between 0.02uF and 0.03uF on the first C/R filter should slow the trem down

[ac427v]

Check to verify that the Speed pot value is 3 meg ohms Reverse Audio (3MRA).

[Stuff4bikes]

Definitely the correct pot....straight off the AES website.

[sluckey]

Your footswitch is not a factor. You don't need it for reverb or tremolo to work. So, unplug it until your issue is resolved.

Try a different 12AX7. Measure voltages on the trem tube. Post some hi-rez pics. Compare your wiring and component values to the layout.

[Stuff4bikes]

Your footswitch is not a factor. You don't need it for reverb or tremolo to work. So, unplug it until your issue is resolved.

Try a different 12AX7. Measure voltages on the trem tube. Post some hi-rez pics. Compare your wiring and component values to the layout.

I have been doing all that to no avail......deep down inside I know you are right though...I will get some voltage specs for you.....I am not good at pictures.

V4.......1-250.   2-0.   3-2.24.  6-200.  7-20.  8-60.

[sluckey]

I am not good at pictures.

Hoffman's PR is a proven design. You will most likely find that your amp ain't wired just like his layout, or you have used a wrong value component somewhere, or your solder skills and workmanship are lacking. On a rare occasion you will find a faulty new component. Hi-rez pics are very helpful in solving new build issues. Not much left to say if we can't see the amp. Kinda like throwing darts in the dark.

[Stuff4bikes]

Did you see the numbers I posted.

[sluckey]

Voltages do not look suspect.

[Stuff4bikes]

Voltages do not look suspect.

Dang it.....was hoping that was it.........what resistors should I look at for value verification.....

I will get some pics when the sun comes out tomorrow.....

[sluckey]

Check all components in this pic. Verify proper values and that they are connected according to the layout.