921B synch switch...

The Moog Forum Modular Forum
1

Hi folks,

Question for anyone owning an original vintage 921B oscillator.

I have the reissue System 15 and I noticed the synch switch has three positions.
The service manual shows two positions WEAK & STRONG… it does not suggest a centre position.

Can anyone please confirm for me that there should indeed be 3 position…?

Cheers,
Tom

2

According to the vintage Moog Modular Owners Manual and the Frontplate (for left and right position) the positions are (left to right):
Weak - defeats sync - Strong

3

Thank you… :slight_smile:

4

That tallies with the new Behringer 921b clones too.