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  6. Instructions

Additional Information - Icom SM-20 Instructions

Desk microphone power-on and ptt indicators
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Additional Information

Note: Pin-out outline of
Q1,Q2, as shown on pcb
matches 2N4401 &
2N3904.
BC547B & 2N2222 may
require mounting 180 deg.
Please verify pin-out of the
transistors you have per
manufacturer data-sheet.

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