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I hadn't added the leds. I didn't think they mattered, but I guess the ~3v voltage drop across them is actually important.

Thanks!

I hadn't added the leds. I didn't think they matter, but I guess their ~3v voltage drop across them is actually important. Now, it's down to about +/-7v with resonance all the way up and doesn't hav ...

I breadboarded this VCF and whenever you turn up the resonance, the voltage doesn't stick to the +/-5v range but goes to -5 to +10v. When I power it via +/-12v it goes between +/-8v with resonance tu ...

I breadboarded the VCF here and whenever you turn up the resonance, the voltage doesn't stick to the +/-5v range but goes to -5 to +10v. Any ideas why this would happen or how to fix it?

Thanks!
...

Hi,

I've built a Mini Synth Mark II on breadboards as a prototype and so I can swap modules in and out and see what my final design will end up as. My final goal is to leave most of it analog but ...

Author	Message
Topic: PCB pattern for René Schmitz "late" MS20 VCF?
mikemoretti Replies: 92 Views: 165848	Posted: Sat Jan 14, 2017 3:21 pm Subject: It was the LEDs Forum: DIY Hardware and Software
mikemoretti Replies: 92 Views: 165848	I hadn't added the leds. I didn't think they mattered, but I guess the ~3v voltage drop across them is actually important. Thanks!
Topic: PHOBoS DIY Synth schematics
mikemoretti Replies: 33 Views: 101911	Posted: Sat Jan 14, 2017 3:20 pm Subject: It was the LEDs Forum: DIY Hardware and Software
mikemoretti Replies: 33 Views: 101911	I hadn't added the leds. I didn't think they matter, but I guess their ~3v voltage drop across them is actually important. Now, it's down to about +/-7v with resonance all the way up and doesn't hav ...
Topic: PCB pattern for René Schmitz "late" MS20 VCF?
mikemoretti Replies: 92 Views: 165848	Posted: Wed Jan 11, 2017 8:18 pm Subject: VCF resonance voltage is high Forum: DIY Hardware and Software
mikemoretti Replies: 92 Views: 165848	I breadboarded this VCF and whenever you turn up the resonance, the voltage doesn't stick to the +/-5v range but goes to -5 to +10v. When I power it via +/-12v it goes between +/-8v with resonance tu ...
Topic: PHOBoS DIY Synth schematics
mikemoretti Replies: 33 Views: 101911	Posted: Wed Jan 11, 2017 8:14 pm Subject: VCF resonance voltage is high Forum: DIY Hardware and Software
mikemoretti Replies: 33 Views: 101911	I breadboarded the VCF here and whenever you turn up the resonance, the voltage doesn't stick to the +/-5v range but goes to -5 to +10v. Any ideas why this would happen or how to fix it? Thanks! ...
Topic: Digital pots?
mikemoretti Replies: 0 Views: 1955	Posted: Tue May 20, 2014 10:04 am Subject: Digital pots? Forum: DIY Hardware and Software » MusicFromOuterSpace.com designs by Ray Wilson
mikemoretti Replies: 0 Views: 1955	Hi, I've built a Mini Synth Mark II on breadboards as a prototype and so I can swap modules in and out and see what my final design will end up as. My final goal is to leave most of it analog but ...