[sdiy] The Aries phase shifter...

[Keith Daniel]

Back many years ago, there was an amazing phase shift module from Aries. Unfortunately the active component was proprietary, and potted in epoxy.

It was a four terminal device, fed the audio in antiphase at the top by a current source, and sinked at the bottom by a variable current sink tied to the control voltage.

I spent some time thinking about what could be in that module, and so many years later I've come up with this idea. It is an adaptation of the old Moog ladder.

Note that there is a continuous DC path down the ladder. 

Just an idea to share, maybe somebody could try it out. 

Thanks, take care.       kwd...

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