Helios 3013 EQ/Pre Module Schematics Wanted
« on: June 14, 2020, 06:14:52 PM »
I'm searching for schematics for a "brown" Helios 3013 EQ/preamp module. It has hi/low pass filters, a 4 section EQ, insert switches and  switchable Q.

Anyone?


 

Related Topics

  Subject / Started by Replies Last post
1 Replies
2719 Views
Last post February 23, 2005, 08:57:03 AM
by ciminosound
2 Replies
2641 Views
Last post April 17, 2009, 10:55:28 AM
by Mlewis
202 Replies
61907 Views
Last post February 10, 2019, 09:42:41 AM
by beatnik
48 Replies
5487 Views
Last post April 22, 2020, 06:04:36 PM
by Whoops