Pigtronix - EP-1 ( Envelope Phaser )

drbob1 · Post by **drbob1** » 11 Apr 2011, 02:44

So, I understand using OTAs to phase and using LDRs, but this doesn't seem to have either? So what are they using to generate the phase shift?

drbob1 · Post by **drbob1** » 11 Apr 2011, 03:05

Never mind, found it on Discofreq that it does use LDRs, I guess that's what those grey, transistor looking things labled O1... are?

uncleboko · Post by **uncleboko** » 14 Jul 2012, 10:25

Did a schematic ever appear for this? I have a client who dabbles and by all accounts dabbled a little too much with his EP-1, which no longer works

when he should have been registering for VAT

Bernardduur · Post by **Bernardduur** » 17 Dec 2013, 14:39

Anybody got the pictures or the information on the mods? Would love to do the Marv mod and up/down!

Nocentelli · Post by **Nocentelli** » 17 Dec 2013, 23:26

Bernardduur · Post by **Bernardduur** » 18 Dec 2013, 15:34

Thanks! This is the up / down mod, right?

Anyone knows the Marv mod??

bandus · Post by **bandus** » 17 Nov 2017, 18:48

Hello!

Anyone knows how to perform the MARV mod on the Pigtronix EP-1? Any source would be fine!

Thanks in advance!