lm-vco pcb?

cloudberry · Joined: Jun 30, 2009 Posts: 51 Location: uk

Hi everyone,

Does anyone know where I might get my hands on a pcb for Thomas Henry's lm-vco?

Thanks.

wackelpeter · Posted: Wed Mar 18, 2015 9:01 am Post subject:

i know of the 555VCO, the 4046 VCO and the XR8038 VCO... the description LM_VCO is new to me... well you can build an oscillator around an LM13700 or so but didn't recognized that Thomas posted such an layout here on EMF.

cloudberry · Joined: Jun 30, 2009 Posts: 51 Location: uk

Thanks for the reply.

This layout is in his "An Analogue Synthesizer for the 21st Century" book. I don't think schematics are on EMF.

softfin · Posted: Wed Mar 18, 2015 11:46 am Post subject:

If you want to etch your own, here's a pcb layout I made for the LM VCO a few years back. The layout is confirmed. I use mine as an LFO these days.

LM_VCO.pdf

Description:

Thomas Henry LM VCO pcb layout

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LM_VCO.pdf

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cloudberry · Joined: Jun 30, 2009 Posts: 51 Location: uk

Yes, thanks. Got that. Working on an etching!

elmegil · Posted: Wed Mar 18, 2015 6:12 pm Post subject:

The XR VCO became the el Cerrito VCO that Magic Smoke Electronics was producing. I'd recommend emailing Tim before ordering though, there's been a lot of chaos in his life and it's not clear what the real status of the PCBs might be (see other discussions here and at Muff's).

Also I believe the Analog Synth... LFO became the Cucamonga LFO as well, should you be interested....