  
Check it out. A complete amplifier design, with plans and layouts - Free.
You've been asking for an "open source" project for a while, here we go!!
Free Tone Frenzy Tube Amp Design
Build the Torres design Tone Frenzy single ended high tech all tube amp.
A killer 1 x 6L6 Pure Class A amp with a unique high gain stage, classic vintage type preamp, tube reverb and an advanced power supply technology.
The PDF file has all the layouts and info to make the entire amp.
All parts and materials are available on our web page, and a complete kit will be available soon.
(Sorry, free plans do not include any tech help at all)
Available on PC CD Rom for $8.00
First fix. the instructions mention a .1 cap and 10 meg resistor as a local feedback network. It should be .1 cap and 1 meg resistor. This will be corrected when I have time to re compile the whole PDF.
Dan Torres
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