Grateful Dead Music Forum

A place to talk about the music of the Grateful Dead 

 #131785  by TeeJay
 Tue Aug 27, 2013 2:09 pm
What were Jerry's settings on the Phase 100 and is it possible to get Phase 100 sounds out of the Phase 90 or 45?
 #131801  by WilliamC
 Wed Aug 28, 2013 10:12 am
There's a picture of his 90's rack at Dozin ( ) that shows the waveform rotary switch in the "8 o'clock" position - two big ovals with the line through them. I think that means deep sweep/wide frequency range. The speed pot was, I believe, wired out to a pedal.

Can't say about the 45/90. It would depend on how similar their factory waveform setting is to that of the P-100 I guess. I've read that the 90 has a deeper sweep than the 45 so that may be a place to start.
 #132668  by tatittle
 Fri Sep 27, 2013 7:03 pm
The Phase 45 is only a 2-stage phaser, wheras the Phase 90 (and 100 I guess) are 4 stage phasers. The 45 is ALOT more subtle than the 90/100. That does not mean it cannot be used to effectively recreate the feel of Jerrysound though obviously. The simulated Leslie type thing in Candyman is a high speed setting. The 45 has a pretty good Leslie sim', but it is more subtle than Jerry in my mind, again.

I was just commenting on how I had an epiphany with a phase 90 and Jerry lead tone when I returned to electric after an absence (and I was a Duane Allman/Hendrix heavy handed/passion/vibrato type guy before that). It does add some "distortion" to the sound...midhump. Other than the overthetop Candyman type things I havent been able to get much that thrills me outta my 100, but I havent tried much either...still focusing on melody and phrasing I guess. I have a MOOG 6/12 stage phaser that is mindblowing at times, especially in stereo; but I havent used it for Jerry vibes really either, more of a jazzy/fusion type feel outta the box.
 #132671  by TI4-1009
 Fri Sep 27, 2013 8:31 pm
45= 2 stages
90= 4 stages
100= 6 stages