Original Quadra Phaser Diagram

[Haible Juergen]

Hi!

The schematics of the original ARP Quadra Phaser board is now available.
Sven Koenig has scanned it, ant it is located at

http://rcswww.urz.tu-dresden.de/~koenig_s/tmp/qp300.gif

My modifications are (for those who don't want to wait for these
documents):
1. Input buffer amp
2. Power supply included
3. "Post Amp" replaced by ota-based instrumentation amplifier
4. LFO and External Input included on the same board
5. All and everything (including pots) on a single sided eurocard (16cm
x 10cm)

JH.