Yahoo Groups archive

SergeModular

Index last updated: 2026-04-28 23:13 UTC

Message

Serge Sync

2005-01-19 by metafoetus2002

Hi,

last December we saw some posts regarding modification of the Serge [PCO]s and [NTO]s
from Soft Sync to Hard Sync.

James R. Coplin suggested to replace the 22k Ohm resistor on the Sync input with a blank
wire.
Then Ken Stone suggested to replace the 22k Ohm with a 220 Ohm for circuit protection.
One month later James suggested to replace the 22k Ohm with a 3k Ohm for "best sound
and minimal (note I didn't say none) core effects".

I am very thankful and excited about this possibility to get hard sync on my Serge. Now I
wonder if someone of the more electronically knowledgeable guys on this list could be so
kind and explain
– the possible core effects
- what's the trade-off between circuit safety and hard sync sound
– why the difference between soft and hard sync is just changing a resistor

Thanks much in advance,
best regards,
Jan-Hinnerk

Attachments

Move to quarantaine

This moves the raw source file on disk only. The archive index is not changed automatically, so you still need to run a manual refresh afterward.