[sdiy] function generators as slave oscillators

Thomas Strathmann thomas at pdp7.org
Sun Feb 10 13:47:20 CET 2013

On 10.02.13 09:38, Scott Nordlund wrote:
> I made a short (and obnoxious sounding) example recording: http://www.mediafire.com/?m8nknxxtl16hnve
> I'm using two function generators here; a Wavetek 145 and 188. The first part starts with just the Wavetek 145 synchronized in trig (one-shot) mode, which sounds sort of like a variable pulsewidth or filter as I change the frequency. I then switch to gate mode (0:22), which sounds like oscillator sync. Then I modulate the Wavetek 145's VCG input with the Wavetek 188 (0:50), then connect the 145's pulse output to the 188's trigger input (1:10). At this point it's some sort of sync-FM feedback loop. Finally, I activate the sweep on the 188 (1:20). Confused knob twiddling follows.
> It's pretty neat considering how little I paid for them.

Wow, I'd say that more than neat. I thoroughly enjoyed it includind the
weirder bits. Good stuff! Perhaps you could do a piece on this setup


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