[Elecraft] Strange thing happened when I connected the MC60 mic to the K2

[Phil Wheeler]

ke6d@juno.com wrote:

>Hi,
>
>I have my K2 for almost 3 years. It has the SSB option; the microphone
>jumpers
>were wired for a Kenwood microphone. The radio seems to work pretty well
>with
>the MC43 microphone (stock TS850 hand microphone), but I don't use SSB
>that much on the K2 because 10W on SSB did work well for me so I ended up
>using the TS850S for SSB operation. I completed the FT KPA100 a couple
>weeks ago and have a pretty good time playing with SSB on my K2 and the
>MC43 mic. Seeing that the 100W really makes big difference on SSB, I
>decided
>to disconnect the MC60 desk microphone from the TS850 and connected it
>to the K2 (The MC60 has a microphone amplification circuit, may be it
>would
>help with the K2 signal) But as soon as I pressed the PTT button on the
>MC60,
>the K2 went dead (it was not transmitting nor receiving) I had to power
>down
>the K2 to get the receiver back. I tried the MC60 a few more times to
>make
>sure that the problem was not something I had done. Then I reconnected
>the 
>MC43 mic back to the K2, everything worked just as before.
>

I had a similar problem.  Turns out the slide switch on the barrel of 
the MC-60 was in the ON position, apparently putting the K2 into TX 
mode.  Moving that switch to OFF fixed the problem.

73, Phil