No joy with the PL-60, I'm afraid.  The orientation and pin size isn't correct.  However, the female pins on the 121 are 1/4" I.D., similar to those used for the large banana pins employed for high power RF coils and the like.  I can send you a couple of those in brass through the mail next week.  Just solder a couple of heavy stranded wires on them, put a couple of pieces of shrink tubing over the pins to prevent accidents, and you'll have an effective substitute until you find a real Navy 121 to do the job.

Happy Christmas,
 - Mike

On 12/23/2021 10:41 PM, Michael Hanz wrote:
I suspect you may be able to use a Signal Corps PL-60, Ronnie, but let me check for sure tomorrow morning and I'll get back to you.  KB4DMF has those on ebay.



- Mike  KC4TOS

On 12/23/2021 8:07 PM, Ronnie Hull wrote:
While not the ARC-5 set, this cool little set needs to be put back on the air!
A gift from AB5S!
It came complete with everything except the power cable from the dyno to +12V. All I really need is the connector however I cannot for the life of me find a p/n for the connector.
The cable is listed as “cable 3154”

Can anyone shed light on the connector? It’s a two pin cable that is a “snap in” style.  The connector designation on the dyno is “121”

Ron W5SUM 



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Michael Hanz - KC4TOS