Well done. Very useful mod! Approx how much does it vary it-what is freq range from one end of the pot to the other Please?
Rgds
P
Sent from my Samsung Galaxy smartphone.
-------- Original message --------
From: "ashdot@... [korgpolyex]" <korgpolyex@yahoogroups.com>
Date: 05/06/2017 20:44 (GMT+00:00)
To: korgpolyex@yahoogroups.com
Subject: [korgpolyex] Poly/EX-800 Delay Time Mod - Success!
Hi,
I think I found the way to control the delay time of the EX800 chorus.
I removed resistors R67 & R68 and replaced them with a potentiometer wired as a voltage divider between D+ and D-.
My scope shows that the pot changes the frequency of the voltage going into the MN3012 clock.
I placed a 10K resistor between D+ and the pot, as any resistance below about 10K stalls the chorus.
Izhar