Pei junior schematic

[newperson]

Any one have a schematic for the PEI Junior pedal?
RM11 Progressive Electronics Inc.

[theehman]

I started to draw one out from my unit a while back but I don't think I finished it.  It uses the ICL8038 chip.

[newperson]

What does the sensitivity switch do? Is it quite noticeable or is it subtle?

This one uses the 350y IC with the same ic noted above.

[theehman]

The whole effect is pretty subtle.  Definitely not as pronounced as a Phase 90. 
The only difference I can hear in the sensitivity settings is the LOW setting has more noise.  I assume it's an impedance thing.

[newperson]

More noise with the low setting is the same for this unit. Effect is a nice wobbly chorus