HE69 EQ from the Helios Desk (PCB)
The EQ from the legendardy Helios Console. (Rolling Stones, Apple Studios, The WHO....)
10K high shelf Band
50Hz low cut
adjustable low band
adjustbale peak or through mid band
for Lundahl LL1524 or LL1517 Output transformers
Option for LL7101 or THAT 1246 input receiver
Carnhill Inductors
Support Thread:
https://groupdiy.com/index.php?topic=45773.0