[sdiy] Servo / Hold?

[spr at spridley.freeserve.co.uk]

Polyfusion used a dual S&H arrangement - a first S&H 
with a smaller cap for fast aquisition feeding a second
S&H with a bigger cap for longer hold/less droop.  
A short trigger delay fired the second S&H when the 
first had settled.


Steve



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