Peavey Standard 260 - Randy Rhoads - Quiet Riot Amp

[equinox]

Guys

I recently purchased a Peavey Standard 260 that Randy Rhoads used in Quiet Riot!

This amp is different than the other variants out there like the PA or one with the DIN input or center "Master" controls, or ones market with "normal", "series", "effects", and "parallel"

This amp has the inputs labelled "1", "2", "1", and "2"and Volume controls on each side! Likewise, instead of the 7-pin DIN, these amps have 1/4" TRS jack and turns on/off the Reverb or Distortion. (see pics)

The serial number is: 4A-21990, pots all labelled 4th ans 17th week in 1974 (so believe it is a 1974) and Control PCB labelled on the solders-side "STANDARD - 73". Th chassis has been marked "71674".

*** I am looking for the schematic for this amp and manual, but the one's that are out there that I can find are for the 7-pin DIN-type. I have reached out to Peavey, but not heard back yet!! Any support would be greatly appreciated. ***

IMG_20250323_185930191_HDR.jpg (1.67 MiB) Viewed 189 times

[equinox]

Well, Peavey finally responded today and included PDFs for the standard power section as well as "A" and "B" revision schematics (attached)!!

Only problem is, mine (and Randy Rhoads evidently) is neither an "A" or "B" but appears to be a hybrid in between the two!

Attached are the following difference between them.

Really I like this design above the other two also and maybe Randy did also or was available when the purchase was made?

In any event, I responded back and am still looking for the schematic of this specific model! They should have it. Somewhere. And is a piece of history also, so would be fantastic if we can track it down.

Stay Tuned....

Mine (and Randy's) has the following controls:
VOLUME - B10K
TREBLE - B50K
BASS - B50K
DISTORTION - B10K
MIDDLE - B10K
REVERB - B50K

VOUME - B10K
TREBLE - B50K
MIDDLE - B10K
BASS - B50K

1/4" TRS Footswitch - Tip switched reverb on/off, Rung switches distortion on/off
======================================
Schematic "A" has the following controls:
VOLUME - B10K
TREBLE - B50K
BASS - B50K
MIDDLE - B10K
REVERB - B50K

VOLUME - B10K
TREBLE - B50K
BASS - B50K

NO Footswitch
====================================
Schematic "B" has the following controls:
VOLUME - B10K
TREBLE - B50K
BASS - B50K
DISTORTION - B10K
MIDDLE - B10K
REVERB - B10K

VOLUME - B10K
TREBLE - B250K
MIDDLE - B50K
BASS - B250K

7-IN din Footswitch
====================================
As you can see, a hybrid between "A" and "B"!!!
"A" has no distortion control nor foot switch control.
"B" has all 10 controls, but intstead of "1" and "2" HI and LO inputs, has Normal, Parallel, Effects, and Parallel inputs! It has a 7-pin DIN foot switch control, which controls not only Distortion and Reverb On/Off, but Selector and Combiner! Likewise, changes to component values and pots including 250k-B for Treb and Bass controls and 10k-B on Reverb control instead of 50k-B!!

[equinox]

It's funny, because what's out there and from Peavey, they call the 10-potentiometer version an A-Series and the 12-potentiometer version a B-series...but as I said, the A-series does not have mid-controls and no footswitch, B-series has many changes and 7-pin DIN footswitching, but I looked at the serial numbers this evening also and the found the following...

1. The 10-pot version, suggested as being an A-series has a serial number starting with 4A-XXXXX.
2. The 12-pot version, suggested as being a B-series has a serial number starting with 6A-XXXX, fyi!

Not sure if the "A" in it signifies A-series and first number year, but that would make sense and both A-series actually, but first one being the earlier version and 197"4" while the second being an A-series also, but 197"6" and why the preamp actually differs.

The A-series PDF has a legend in the bottom right and dated Oct 1, 1971. Unfortunately, the B-series schematic has no date nor legend! Ugh.

I did find a 260, 260C 78 and 260C 81 PDF online. The 260 is just the power section and dated Sept 1, 1972.
The 260C 78 is a preamp, but significantly different and dated Aug 30, 1978 and revised Aug 11, 1986.
The 260C 81 is a preamp and again significantly different and dated April 6, 1981 and revised August 7, 1986.

[equinox]

Ok, I was fortunate enough to run across someone that actually has a copy of schematic and provided it tonight!
10 potentiometers and shows the ring and tip F.S. (footswitch) correctly for the Distortion and Reverb!
I will be going over every component this weekend and blueprinting to confirm correct.
The power section should be the same as the A and B-series provided.
This one based on the filename is suggesting a 1973 A-series designation!

https://preview.redd.it/1973-series-a-s ... 1fed09e49a

[equinox]

I did find a couple differences between the schematic and my amp which was all original.
I think they just errored in placement at the factory, but the 180pF cap between the 2.2M and 100k after the mid in the normal channel had a 39pF!
Likewise the emitter resistor to ground in the first stage normal channel was a 2.7k instead of the 4.7k on the schemo!