[sdiy] 3 dollar lopass gate

Jacob Watters jacobwatters at gmail.com
Mon Mar 13 14:49:17 CET 2017


Will do. I added some to my mouser cart.

On Mon, Mar 13, 2017 at 9:17 AM, Quincas Moreira <quincas at gmail.com> wrote:

> cool, have at it!
> Never tried with optocouplers, but give it a try and tell us how it went!
> Cheers
> Q
>
> Sent from my iPad
>
> On Mar 13, 2017, at 6:27 AM, Jacob Watters <jacobwatters at gmail.com> wrote:
>
> Great video. I want to make one of these for myself now.
>
> Has anyone every tried to make one with the H11F1 optocoupler?
>
>
> Jacob Watters
>
>
> On Sun, Mar 12, 2017 at 5:50 PM, <rsdio at audiobanshee.com> wrote:
>
>> 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.
>>
>>
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