Search found 3 matches
- Thu Jan 16, 2020 6:31 pm
- Forum: Minimoog Forum
- Topic: Early minimoog osc 3 dead
- Replies: 0
- Views: 1708
Early minimoog osc 3 dead
I have a Minimoog D with early oscillator board. Osc 3 not oscillating, no sawtooth on neg side of C8 , just sitting at 0v. I have schematic + theory of operation writeup, a dmm and a scope, where should I start? Any common component failures? Osc 1 and 2 are working, so should be a good comparison ...
- Thu Jan 16, 2020 6:22 pm
- Forum: Minimoog Forum
- Topic: 1975 minimoog power supply issue
- Replies: 2
- Views: 1813
Re: 1975 minimoog power supply issue
I put the osc board back in and now the supply adjusts correctly.
- Mon Jan 06, 2020 1:33 pm
- Forum: Minimoog Forum
- Topic: 1975 minimoog power supply issue
- Replies: 2
- Views: 1813
1975 minimoog power supply issue
I am attempting to adjust the +10 and -10v rails on the power supply. I get the +10 v adjusted at 10.00 v , but I can only get the -10v rail to -9.86v before the -10v pot runs out of travel.. A couple of questions, where do the +10 and -10 v sense get their voltage from? How exactly does this work, ...