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Stereo Power amp project
 This project is an all tube, stereo, power amp, rack unit.
The stereo outputs let you do ping pong delays and other true stereo effects such as chorus.

 I happened to have a few pieces of a rack unit laying around and so I pieced together what I had and used some poplar to make the wooden parts.
I raised up the floor of the 3 space rack unit 1.25 inches to make space for the point to point wiring.

 This design is two 18 Watt Marshall power amps in one chassis.
They share a common power transformer that is made for 4 x EL84's in class A operation (Vox AC30)
There are two 18 Watt output transformers and one Fender 125C1A choke
The knobs on the front are input level for each channel
The back panel has two input jacks, two impedance selector switches and two speaker jacks.
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Click on the images below to see a larger image
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Top rear View Top Front view
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Inside front view Inside rear view

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Click on the images below to see a larger image
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Front view of my rack setup
Top to Bottom Items in rack
Palmer Speaker emulator - Load Box
ReVibe
Stereo Pre Amp
Stereo Power Amp
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image Here's the schematic for the Stereo 18 watt power amp.
I don't have a layout diagram since this thing was wired point to point.
You would have to look at the pictures if you wanted to copy my layout.

The Parts in blue are just higher wattage parts.

AC30 power transformers will work for this project.
The voltages must be lower than a typical Fender type power transformer.
The power tranny I used had 280-0-280 for the high voltage winding.


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