>Just wondering if anyone of you have messed around with the FX-board >inside the Polysix sometime? What I have in mind is to slow down the >phaser-rate and increase the depth...unfortunatly I don't have the >service-manual so I dunno where to start...anyone? Well, from what I can read out of the service-manual, there are three pots that you can 'mess around' with: VR1, VR2, VR3. The manual say: BBD clock adjustment. Set EFFECTS MODE to ENSEMBLE, SPEED/INTENSITY to 10. 1) check TP-1 with oscilloscope. 2) adjust VR1 to obtain maximum clock cycle of 30 microsec. Exactly the same procedure for TP-2/VR2 and TP-3/VR3 That's what you do to to obtain the original settings, but if you want longer sweeps, I suppose you should try longer clock cycles... /Anders Vahlberg, Sweden