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Created by
 Western Graphics
Last modified
 08 May, 2004
 

AM2480 - Oakley Equinoxe Phaser

Overview This module is a standard Oakley Equinoxe Phaser built into an AM module and panel format. This was one of the first modules I built, and it was finished in Autumn 2003.

Circuit The Oakley design is a four stage OTA based phaser that uses the CA3080 chip. It provides lush phasing effects and it has an in-built LFO which produces a triangle waveform (0.025Hz to 16Hz).

Build The standard Oakley PCB was easy to populate and it was mounted onto the AM panel using the usual ECO solder pot brackets, spaced at 41 mm, and mounted on the front of the PCB. By spacing out the row of jack sockets, a space is made in the centre line of the panel for the PCB to live.

The PCB is supported by the right hand column of 3 pots, and the fourth pot (LFO RATE) has been remotely mounted away from the PCB rather than being located on the PCB. This leaves room for a 4U high panel and jacks sockets. It is a tight squeeze with minimal clearance at the bottom of the panel. Watch out for the Q2 legend being the wrong way round, the Phaser still works when Q2 is the wrong way round...

Set Up There is only one trimmer - TUNE, which is easy to set. I used a high intensity blue LED, which works fine with default 2k2 resistor. Tony designed it for a 2-pin bi-colour LED, but I haven't yet found one I like the colour of yet.

Panel The front panel  is a standard AM design, 90mm wide and 4U high, with black lettering. Controls knobs are standard E
µ Modular designs.
 

 Resources

* Oakley Sound Systems more »
* Schaeffer Front Panel .fpd file
     AM2480
download »

  Coming soon...
 

 Front Panel

Panel

 PCB - populated

PCB