2001 Pro Reverb 112 50w preamp tubes

[chessico]

My Pro Reverb has the original tubes, so I am in the process of retubing. It has 2 - 6L6, 7 12AX7, and 1 12AT7. The preamp positions are labeled V1 through V8. The V7 position has the 12AT7.

What do the V1 - V8 preamp tubes effect, since I cannot find documentation to clarify?!

Any help would be much appreciated .....

BTW, Doug @ dougstubes recommended the Ruby 6L6GCM-STR power tubes and an assortment of 12AX7's which I have on order.
I can't wait to hear the sound of the amp after I get the new tubes!

[phantomman]

My personal amp tech also recommends the Ruby 6L6GCMs. I have them in two amps an' they sound great. Two other amps have JAN Tung-Sols which also sound superb.

I don' think you'll be disappointed in the Rubys.

[rudutch]

http://www.kcanostubes.com/content/n...sp?ArticleID=5

[Cygnus X1]

Yikes.

I seen nothing but "not good" about Ruby's in general all over the Interweb.
Mind the source, now.
I still haven't quite run out of NOS.
But I have to buy new tubes every once in a while.

Been sticking with Electro Harmonics for preamps, and Svets for 6L6. JJ's for 6V6. Only bought one set, but they sound as good as the older RCA's I have.

[chessico]

Thanks all ...

Hey rudutch, great link!

I wonder if the layout covers the 2001 model since it has a V7 and V8 position as well?
The power tubes are labeled V9 and V11.

For the preamps, I'm getting 2-tung-sol, 2-eh, 2-jj, 1-mullard, 1-penta, and a JAN 12AT7.
Quite an assortment to play with ...

[Cygnus X1]

Can't go wrong there.
Good choices.

[hippiebob01]

i've got a pair of ruby 6L6GCs and they sound great to me and have been reliable.

[chessico]

What about the preamp tube layout in the Pro Reverb?

I found the schematic, but I can't really decipher which
preamp tube does what.

The configuration is as follows:

.............v1...........v2..............v3...... .........v4.................v5.................v6. ..........
.........12ax7.....12ax7.........12ax7.........12a x7...........12ax7............12ax7........

...........v11...........v9....................... ...v8................v7........................... .............
..........(6L6).......(6L6)....................12a x7...........12at7................................ ......

Any ideas as to which tubes affect the channel 1, 2, reverb,
effects loop, phase inverter , etc ...

[phantomman]

Umm......tha's the plans for the Death Star, Luke.

How 'bout a schematic for a Pro Reverb 112?

[chessico]

I think I figured out the schematic ... after much prayer,
wringing of the hands, walking the floor (just kidding) ...
for anyone needing the same.

V1 = channel 1 (Vol) [12AX7]

V2 = channel 2 (Gain) [12AX7]

V3 = channel 2 (Vol) [12AX7]

V4 = Phase Inverter/Splitter [12AX7]

V5 = Reverb (recovery?) [12AX7]

V6 = Tremolo [12AX7]

V7 = Reverb (tank?) [12AT7]

V8 = Send/Return [12AX7]