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Comment by Ron "Oily" Sprague on December 7, 2016 at 7:44pm

Scotty,
There's a schematic for a Model 40B right here on eBay:

http://www.ebay.com/itm/Vintage-Victor-Animatograph-Corp-Model-40B-...

Can't tell from your pics if yours is the same model, but it might get you close.

Comment by Scott aka Farmer Ted on December 7, 2016 at 1:38pm

Wish this one came with a schematic, and I have been looking online with no success to locate info on this specific unit.

But there are plenty of options with other similar tube layouts, like the Valco/National/Supro idea for example.

I may look into adding a tremolo circuit and/or reverb.

Comment by Paul Craig on December 7, 2016 at 9:53am

From what I'm seeing on the internet, all 3 of those 6..7 tubes are 1/2 of the 12AX7/ECC83 tubes. Should be able to get some good tones out of that.

Are you to follow the original schematic or another? You could probably build a good Valco/National/Supro amp out of that.

Comment by Scott aka Farmer Ted on December 7, 2016 at 9:22am

Great find for you Paul. I did the same with another RCA console stereo, and made a tube guitar amp from the chassis.

The 6SN7 is a dual triode, just like the 12AX7, with the filaments of the 6SN7 needing double the amperage as the 12AX7.

Comment by Paul Craig on December 7, 2016 at 8:13am

That's cool. I think the 6SN7 tube is similar to the 6AU6 tube(1/2 a 12AX7), maybe not. Should make a good amp.

I bought a Motorola standalone HIFI Turntable for 20 bucks at a yard sale this summer. Tube amp inside was worth more than that. Has a 6AU6 preamp tube, 2-12AU7 tubes, 2-6V6 power tubes and a 5Y3 rectifier tube. Also had a 15" speaker in it that I had to repair, but it works. Thinking of making it into a Bass/Acoustic amp.

Have fun with your build and be sure to post it in a thread, I'll be doing mine soon.

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