[sdiy] Electronotes

[Gareth B.]

>I highly recommend the entire set.  The Musical Engineers Handbook and
> Application Notes contain abundant tutorial information.  The Preferred
> Builders Guide is a compendium of the more common synthesizer modules, but
> only has circuits (no descriptions) for many of them.  The regular
> Electronotes issues contain many additional interesting and useful 
> circuits,
> as well as yet more tutorial information.

Is there any material on vacuum tube synth circuitry?

-- Thanks

Paul