Discussion about the Korg PolySix synthesizer

IC 25 is a 4011 Quad NAND Gate. 

Don Backshall

From: mailto:PolySix@yahoogroups.com 
Sent: Thursday, December 18, 2014 4:02 PM
To: PolySix@yahoogroups.com 
Subject: [PolySix] klm 367 repair

  

Hi all,

I need to replace a few ICs on my KLM 367.  

I traced out all and fixed the bad connectors and cleaned up a bit but what chips go into IC slots labed IC 30, IC 31, and IC25?   ICs 31 & 30 are  74LS08 type quad AND gates but what is IC 25?

Thanks,

Nate