Epoxy Block Phasers

[Joachim Verghese]

On Mon, 9 Sep 1996, Grant Richter wrote:

> I have two phasers that are based on epoxy blocks. The blocks
> must be some kind of ladder structure because they are modulated
> by exponential current sinks and have differential
> input and output drives like a Moog ladder filter.

ARP used an all-pass ladder design for the phaser that was built
into the Quadra synth. The schematics may be available at the
Music Machines site, not sure. Let me know if you can't find them.

-joachim