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To Mr Bill

A

Anonymous

Guest
Surfmaster PI Pro. Add's speak of a new updated circuit.can you tell us what these circuits are.Will you be specific if you can. Thank You.
Frank.
 
If you go to my web site and click on "modifications" "Surfmaster PI" it will explain the major part of it.
I guess they decided it was a worth while change to their old design. <img src="/metal/html/smile.gif" border=0 width=15 height=15 alt=":)">
Basicly it's what we have been doing to the Surfmaster for years. We speed up the pulse delay to 15uS. and tweak the circuit to be more sensitive to low conductive items.
Mr. Bill
 
Thanks, no op- change, just increase gain and lower R-555 timer.can you go lower than 15us,without detector giveing false reading.
Frank.
 
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