[sdiy] Phase Shifter

David Moylan dave at westphila.net
Mon Jan 23 01:27:55 CET 2017


Cool.  I haven't seen this topology used before.  My only complaint is 
the number of required opto elements (which can get expensive), since 
there are ways to do it with only one opto per order (as opposed to 2).

Any chance of putting up some more sounds demos with some other source 
material than the noise?

On 01/22/2017 06:36 PM, shine32 wrote:
> Hi all,
>
>  I made a phase shifter with a secondary order all pass filter.
>  I think that is unprecedented.
> 16 photo couplers are used in this circuit, but it may be enough in half
> depending on the circuit.
> Please refer.
>
> http://d.hatena.ne.jp/SpyBreak/
>
>
> Atsushi
>
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