[sdiy] Phase Shifter

AlanP alan.p at orcon.net.nz
Mon Jan 23 01:38:11 CET 2017

On 23/01/2017 1:27 p.m., David Moylan wrote:
> 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).

I'd suggest designing for a cheap LDR/LED solution, rather than the 
usual vactrols. LDRs are pretty cheap, from places like Tayda.

Alan Podjursky
"When in doubt, use brute force." -- Ken Thompson

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