Questions about Rehabilitating a 65 Super Reverb

[Dumbmonkey]

Photo for your perusal.

[stratomaster]

A few things:

The first being most likely the problem:

The resistor that comes off the Reverb knob wiper is supposed to be a 470k.  You put in a 470Ω.  You'll get a good bit of gain back and you'll load down the V2b stage less.

Second: those PR01 Vishays are rated to only 350V. It may never be an issue, but something to keep in mind.

Third: I see some FOD (pieces of components, solder balls, etc). It would be good practice to take care of those as you work as they're easy to lose track of later, and they may cause issues.

Recheck your voltages after you put in the proper resistor. I think they'll come more in line.

[tubeswell]

The resistor that comes off the Reverb knob wiper is supposed to be a 470k.  You put in a 470R

If you are noticing a significant volume difference, then something must be wired wrong in the vicinity of the reverb level pot and the associated 470k and 220k resistors, ...

[Dumbmonkey]

Holy crap.
I am soooo freaking embarrassed.
Thank you both so much! I am ordering resistors tomorrow. I’ll change out those plate resistors as well.

[pdf64]

Confusing 470k with 470R, and visa versa, seems to be a fairly common mistake, eg at the screen grid, LTP bias, and this.
I wonder whether the brown / yellow of the multiplier band might be hard to differentiate if the builder has very slight colour blindness?

[shooter]

yep, American "red" n ccp "red" are NOT the same color to most eyes.


the fix is easy; Ohm every R BEFORE you install.  takes 13 minutes longer initially, saves hours later.

[Dumbmonkey]

Hi again!
Ok, so my shipment of stuff came in, and wow, that 470K did the trick as far as the volume of the vibrato channel is concerned.(that'll teach me to pay more attention to the multimeter...)  I'm going to deal with the plate resistors, and then remeasure all voltages to post an updated chart.  Hopefully, I'm on the way to getting this thing healthy and out of my basement.

[Dumbmonkey]

Hi All!
Hopefully, this is going to be my last post on this topic. 
Now that my bout with the Dunning Kruger effect has been addressed, and the correct resistor (470k vs 470 ohm) has been dealt with, the volume issue on the vibrato channel is no more. I replaced the problematic plate resistors with more reliable ones (PR02), and cleaned up some sloppy potentiometer wiring. All seems to be working as it should be.  I went through and checked DC voltages, and they all seem to be within specified ranges. 
My next steps are to roll some tubes with the old tubes it arrived with, get it back into the cabinet, and get it out of my sight.  Not that I have anything against Super Reverbs, but as this isn't going to be mine, I'd rather it go back to it's rightful owner and I can have my bench back, lol.
Thanks for all your time and assistance with this, I don't think I could have done this without other eyes and knowledge!