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2N3638
Nov 7, 2014 0:47:03 GMT -5
Post by Vivian on Nov 7, 2014 0:47:03 GMT -5
The 2N3638 at the right-hand end of the circuit is an amplifier, which also isolates the pulser components from further circuitry in the transmitter which might cause unwanted pulse variations. Esky
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