New Phaser schematic online

[Sean Costello]

Hi everyone:

I just put a new phaser schematic up on my website
(http://www.seanet.com/~costello).  The schematic is for the Compact
Phasing "A," a German design which was manufactured by Gerd Schulte
Audio Electronika in the 1970's.  The Compact Phasing "A" was used by
Tangerine Dream, Ash Ra Tempel, Klaus Schulze and others.  It uses two
lamps driven by an LFO; each lamp drives four photocells which act as
the variable resistors in the usual op-amp phase shifting circuit.

Now that I think about it, I have a lot of designs on my page that were
used by German bands.  The VCS3 filter, the Moog filter, the Moog 960
sequencer, and now this phaser.  I need to get these things built (Tom
G's diode ladder filter is on a breadboard currently), & buy a Farfisa
to run through them, & get that Mellotron sample CD...

Anyway, if anyone has any comments on the phaser design, please let me
know, and I'll put them up on my page.  Also, please feel free to put
any of the schematics on my site (i.e. under my domain - not the ones I
link to) up on other sites, as I am really running out of room.

Thanks,

Sean Costello

P.S.  Speaking of Moogs, Farfisas, and German bands, the new album by
Jessamine should be out tomorrow.  Jessamine is a band from Portland,
Oregon (formerly from Seattle, Washington) that uses guitar, bass,
drums, Micromoog, Farfisa, and about a million old pedals to generate
some very nice moody spacey music.  If you like early Pink Floyd, Can,
Cluster, etc., you should check out Jessamine.  Available on the Kranky
record label.