The AM Forum

Well, now I've done it.

I can't find the M/F connector fer my LM 21.

Anyone know the tech name for it? Or maybe have one for sale?

Tnx,

KLC

On the picture it looks like a ARC-5 command set connector. See https://www.fairradio.com/catalog.php?mode=view&categoryid=88
RGDS Anton

I made a connector for my LM-18 using brass tubing and epoxy from the hardware store. It doesn't look that great, but it works.  Good luck.

Thanks fer the info. I never thought of checking Fair Radio.....  they are all over the board with their prices.

It looks like I'll be checking old tube sockets to cannibalize.


klc

Last year there were similar style plugs available on eBay.  I was researching the same question to restore an LM-10. 

The manual don't use the same numbering scheme as the more commonly used army scheme.

I made one quick stab at eBay yesterday and drew a blank, but I doubt they have totally disappeared.

You may be able to find the correct nomenclature by looking at similar or related equipment.

Nebraska Surplus Sales is another possible source.
http://www.surplussales.com/

Technically, it's Charles. But we call it Chuck.  ;D

(aka PL-56)

Here you go, but act fast - last one....

http://tinyurl.com/lflszkf

And if nothing else and you miss that last available one, Molex connector "holes" of a certain size may work, fitting those pins.

Since it is a low temperature application, you could lay a piece of wide electrical tape over that connector, push it down so only the pins stick through, basically you make a cup out of the tape that lines the inside of the ring and covers the 'floor' of the connector letting only the pins come through the tape and sealing it so it won't leak hot glue.

Then use a plastic tube like a pill bottle section to extend the 'wall' up about an inch from the ring. Then you solder wires to the the molex 'holes' part of the connection and push the connectors firmly down on the equipment's pins, and fill it up with hot glue. Once cool, you ought be able to pull out the 'plug' made of the hot glue with the 'holes' part of the connection firmly embedded. Then remove the tape and throw it away. Trim the end of the plug, as some hot glue goop always leaks.

So you get a round rubber-like plug cased with a plastic shell, with embedded pins in its face, and wires coming out of the back end. I have done this and it works well for plugs with a few pins like that one. I have not done it on that particular connector.

A few years ago I got an aircraft rack (ATR) for a 610S-1 from Fair. It was the last one, was broken, and he didn't want to offer it, but I am sure glad to have stated my willingness to accept whatever was on-hand. So be sure to accept something that may be broken, he does not seem to throw away everything, you may find something usable.

Well, the saga continued.

I was seriously contemplating Pats idea, and so I took a closer look at the connector(s). The connectors appeared to be banana plugs; I grabbed a jack, and the jack fit. So now I'll get to fire this up.

Thanks everyone for your input

klc.

I thought they were a bit pooched out looking. Ok bananas!