[sdiy] 90-degree phase displacement network calculations

[Ben Stuyts]

> On 6 Jan 2021, at 07:32, David G Dixon <dixon at mail.ubc.ca> wrote:
> 
>> Pretty cool, David!
>> I've been looking for a tool to calculate RCs for an n stage all pass network.
>>  
> Thanks, Oren!  Yeah, given how easy it actually is, it is amazing how hard it is to find out how to do it.  I had to dig up a 70-year-old paper from some obscure old journal to get the straight dope.  There doesn't seem to be any more recent source with this information (until tonight on this list).

+1, that was some awesome sleuthing, David! Thanks for sharing.

Ben

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