[sdiy] 3 dollar lopass gate

[rsdio at audiobanshee.com]

Hmm, except that a bunch of 4066 chips would cost less than 4 cents per note switch - I don't see how you can hand-make LED+LDR gates for that cheap. You'd also get more bleed with the LDR, I expect. No, it's not all about cost, but time and labor, too.

Brian


On Mar 11, 2017, at 11:48 PM, Elain Klopke <functionofform at gmail.com> wrote:
> So it just hit me that this would be an interesting and cheapish way to do the keying of all the notes on my paraphonic synth project instead of a bunch of 4066s.
> 
> of course, after I placed the order, my brain did one of those old Master Card commercials...
> 
> bag of LDRs on eBay: $12
> bag of LEDs on MPJA: $8
> 16 feet of heatshrink tubing: $4
> realising you just signed up to burn your fingers 400 times: Priceless.