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DIY Stompboxes => Building your own stompbox => Topic started by: hair force one on February 07, 2007, 03:51:01 PM

Title: mxr auto phaser, i need a little help...
Post by: hair force one on February 07, 2007, 03:51:01 PM
recently put my dirty hands on a mxr auto phaser (blue!) circuit board. I also traced the schematic to make a proper edge connector and try/repair the board.
also my schematic might not be very accurate (the board is double sided!) it shows that this rare piece has 6 stage of phasing through vactrols and could be connected like this:

pin1 : cv out
pin2 : cv in
pin3 : non connected
pin4 : v+ (15V to 25V ?)
pin5 : ground
pin6 : ground
pin7 : phaser out
pin8 : phaser bypassed
pin9 : input 1
pin10: input 2 ?

any information on this ?
Title: Re: mxr auto phaser, i need a little help...
Post by: jonathan perez on February 08, 2007, 12:54:27 AM
whats an mxr auto phaser?
Title: Re: mxr auto phaser, i need a little help...
Post by: hair force one on February 08, 2007, 05:45:12 AM
(http://partouze.chez-alice.fr/stomp/mxrautos.jpg)

this is rack gear from the seventies, those are common in studios but rarely seen on the web...

here are pictures of an autoflanger -> http://www.modezero.com/autoflanger.htm (http://www.modezero.com/autoflanger.htm)
Title: Re: mxr auto phaser, i need a little help...
Post by: hair force one on February 08, 2007, 06:10:10 AM
and this is the blue board
(http://partouze.chez-alice.fr/stomp/mxrapcomponents.jpg)
rusty components testifies how much liquid it sounds !
(http://partouze.chez-alice.fr/stomp/mxrapcircuit.jpg)
my guess about the edge connector pin out...