[Elecraft] K-2 5 volts on Mic Jack

[W3FPR - Don Wilhelm]

Bill,

While I would not advocate the same solution for everyone, it sounds like
you have a solution that works for you.  Do be aware that the +8 volt supply
has its limitations too, and I would not want to venture any guess about how
much current you can draw from it before a problem would be seen.

I will stick to my previous rant that each accessory should include powering
provisions for itself with the input power derived from a stiff, dependable
source such as a +12 volt supply.  It is presumptious of a designer or
manufacturer to assume that any transceiver will provide power for any and
all accessories (unless made specifically for a given transceiver where the
accessory powering capabilities are known and have been tested).

73,
Don W3FPR

> -----Original Message-----
>
> I solved this problem.
>
> Instead of +5, I wired a jumper block to a piece of wire, ran it to the
> +8 regulator on the RF board, ran the wire up beside the connector and
> pushed the jumper wire on the microphone half of the connection. I
> already had several accessories wired for a Kenwood TS-430S, which uses
> +8 volts as well. Now the accessories work equally well on either
> radio.
>
>