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For blind ham radio operators

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Subject:
Rotor control
From:
Ed Malmgren <[log in to unmask]>
Reply To:
For blind ham radio operators <[log in to unmask]>
Date:
Thu, 18 Aug 2011 09:08:24 -0600
Content-Type:
text/plain
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text/plain (5 lines) 
 Keith, I use a circuit that I got the schematic from the Braille Tech Press 
way back about 1961.  It is a comparator circuit and goes across a Ham 4 
control box meter. It looks crappy  but has worked since.  Wish I still had 
that book with the circuit.  73 Ed   K7UC

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