Gang -
One of the first things I do to my rigs is put a diode bridge on the
power input connector. A bridge of the proper rating ( i.e., 2 Amps, 4
Amps, etc.) works to eliminate faears of how the power supply is
connected. Just ohm form the ( - ) leg of the bridge to one of the ~ sides
of the bridge. If you get continuity then this is the ( - ) side to connect
to the wire going to the boards. Ohm the ( + ) side and it MUST go to
the other ~ and conncts to the wire going to the power on/off switch.
Now have no fear - lend your rig to others, use it at field day, move
from your car toa friends car ALL with out regard to which conductor in
the jack is + or -. Makes no difference! JMTCW.
John N3REY
Always QRP!
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