There's like 5 versions of phase 90 out there all with subtle differences in PCB and circuit. There was supposedly a site with the details but I believe the link is dead. I've read almost every thread on the topic, and you seem to be a recurring voice, so I appreciate you chiming in!Īny idea the differences between the 'modern' block and vintage circuit layout? From what I've read you can't go by the Dunlop when working on the older blocks. I'llleave the output level to other minds. You probably don't want to go much beyond around 4.3M in the one direction, and 2.7M in the other. The 3.9M resistor coming off the LFO will provide narrower sweep from the 'starting point' (set by the bias trimmer) is that value is increased, and wider/higher sweep if the value is reduced. I wouldn't go much below 15-18k and values above, say 39k will yield diminishing returns. Varying the value of the feedback resistance will get you greater and lesser amounts of feedback/resonance.
Keep in mind that, as a single knob phaser, other parameters were fixed so as to provide an acceptable sound at all modulation speeds. The chief differences between block and script have to do with: Quote from: Mark Hammer on April 05, 2021, 08:39:51 AM
