Ben,
The MH2 that I have makes hot connections only to pins 1 and 2 and
ground on pins 7 and 8, so you can use any of pins 3, 4, 5, or 6. If
you have wired the resistor to mic jack pins 6 and 1, then pin 6 is not
usable unless you modify the 5 volt take-off point on the front panel board.
So the short answer is: In a normal K2 wired for the Elecraft MH2, you
can freely use mic jack pins 3, 4, and 5 (remember to remove the jumpers
for those pins from the mic configuration header so you don't feed
anything back into the K2 circuits).
73,
Don W3FPR
Ben Hofmann K1NT wrote:
I have an MH-2 microphone for use with my K2. I can't
find the paperwork that originally came with it.
I am wanting to use 2 pins on the mic connector for
fixed level and variable level receive audio. Was
thinking of two of pins 3, 4 or 5, but I wanted to
make sure before I did it that hooking the MH-2 to the
connector with signals on any of these 3 pins would
damage the MH-2 any way. Any help would be
appreciated.
-Ben K1NT
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