On 12/14/2012 11:44 AM, Steve Forst wrote:
> While the AT-300 has long been discontinued, it is still the "standard"
> that Kenwood radios  interface with.  Other external auto tuners will
> emulate the AT-300 when interfacing with Kenwood radios.   I'm fairly
> sure that if you can figure out the pin outs from the tuner cable, you
> can connect it to the molex jack on the radio  and then just use the
> radio's tune button to auto tune.    There may well be some pre made
> cables out there if you dig around.   If you check the e-ham  product
> reviews, there are guys who will do custom interface cables at
> reasonable cost.
>
> There is also a trick of putting  a 10k ohm resistor between the center
> 2 holes of the molex jack on the radio. While this doesn't control the
> auto tuner  automaticly, when you hit the tune button on the radio, it
> bypasses the internal tuner,  switches the radio to CW and lowers power
> to 10 watts.  Then you tune the tuner, and when it is matched, hit the
> radio's tune button again to return to original mode and power setting.
>     I've never done this and am going from memory, so confirm from
> another source before trying this.
>
> 73, Steve  KW3A
thanks, I'll check into those cables.
Mean while I have a At-250 or 200, not sure connected to my TS-50 that 
I'm going to try.
It has the correct plug on it.

thanks, and 7 3.