ID this RF connector

Sam T · **Posted:** Mar Mon 26, 2012 1:33 am

On this RCA sweep generator model WR 69A the RF Out connector has two pins.

Attachment:

RCA WR69A.jpg [ 62.96 KiB | Viewed 853 times ]

It's also an attenuator... it slides outward from the cabinet.

Attachment:

WR69A RF OUT.jpg [ 17.57 KiB | Viewed 853 times ]

What kinda cable connector fits this?

Thanks,
-Sam T.

K7MCG · **Posted:** Mar Mon 26, 2012 2:31 am

Looks like a 2-pin microphone connector.
http://www.universal-radio.com/catalog/ ... cconn.html

--Chuck

blue_lateral · **Joined:** Jan Thu 01, 1970 1:00 am **Posts:** 840

Yes... but probably not like the one in that link. I bought one from that same series pictured in the link, thinking it would fit a piece of gear I was working on. It didn't

Look closely, if the pins are centered, and there is a key notch to keep you from inserting it upside down, it is the connector Chuck linked. If the pins are offset, and there is no alignment notch it is the one I refer to below.

The connector was made by Amphenol, and I think was part of the same series as the infamous single contact "microphone connector" found on a lot of old test gear.

It is also used on the Johnson Ranger and Heathkit DX-100 ham radio transmitters as a connector for the microphone. Searching for connectors for one of those will get you closer. A ham radio swap meet would be a good place to look for a used one. A new one will be pretty expensive if you can find it. Good luck.

Edit: found a link... http://www.ultrawebb.com/OHP/miccon.htm

John

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Mikeinkcmo · **Joined:** Oct Sun 15, 2006 12:57 pm **Posts:** 3174

Unless you want to keep it stock, I'd replace that one and the IF/video out connector with BNCs. They all take the same size hole so its just a drop in. Keeps the odd ball connector inventory down and, the BNCs are cheaper.

Mikeinkcmo · **Joined:** Oct Sun 15, 2006 12:57 pm **Posts:** 3174

Am I missing something? Is there no "Delete" button in the edit function? Would make cleaning up double posts lots easier.

Sam T · **Posted:** Mar Tue 27, 2012 3:26 am

I've tentatively identified the needed mating connector as being an Amphenol 80-MC2F-385.
Appears they come up on ebay from time to time.

Thanks for the help!
-Sam T.

PBPP · **Posted:** Mar Tue 27, 2012 6:26 am

I *think* I have the mate to that guy.
Part number on package is 046 25500. Allied/Amphenol.
Female pins slightly below center. IIRC, this went to a Heathkit HW-101.

Yours for a dollar apiece plus shipping. I have two (2) new in package.
I'm guessing $3 to ship, so $5 total. Can post a photo if need be.
Looks identical to this:
http://cgi.ebay.com/ws/eBayISAPI.dll?Vi ... true&rt=nc

~ Mitch ~

PBPP · **Posted:** Mar Tue 27, 2012 10:47 am

Looks like we have a match!
One hell of a steal considering the above two links price this at $20 each:

~ Mitch ~

Sam T · **Posted:** Mar Thu 29, 2012 5:36 pm

Mitch... sorry, I have been on a little vacation so not checking the forum.
I'll PM separately, thanks a lot!

-Sam T.

PBPP · **Posted:** Mar Sat 31, 2012 7:02 pm

PM received and connectors sent!
Pls post pics to see how well they fit.

~ Mitch ~

Sam T · **Posted:** Apr Thu 05, 2012 3:16 am

As stated previously, this connector is part of (or attached to) an attenuator - it slides outward.

Attachment:

DSCN1300.JPG [ 95.88 KiB | Viewed 574 times ]

Looks like it's output is probably 75 ohm balanced.

Anyhow, Mitch your connectors fit perfectly. Many thanks!

Attachment:

DSCN1301.JPG [ 100.94 KiB | Viewed 574 times ]

-Sam T.

Mars · **Posted:** Apr Mon 09, 2012 4:34 pm

There ya go! A nice simple mod to a BNC does the job. Myself, I would've just installed a panel BNC jack but that would affect the factory original look for some folks. The microphone jack that was mentioned differs in that it is keyed with a small "divot" or whatever the term is. Often used in old PA systems and old two-way radios.

PBPP · **Posted:** Apr Tue 10, 2012 3:45 am

Mars wrote:

Myself, I would've just installed a panel BNC jack but that would affect the factory original look for some folks.

Sam, the OP didn't have that option. - Did you notice the RF attenuator?

~ Mitch ~

JKM1942 · **Joined:** Oct Mon 03, 2011 8:41 pm **Posts:** 64

Can someone tell me what type of connector would be used on the IF/video out jack ? I have a B&K 1076 analyst in unused condition and would like to keep it original. After perusing connectors on ebay, I found a microphone connector that looks like it could be modified to work.
http://www.ebay.com/itm/MICROPHONE-BUTTON-CONNECTOR-vintage-screw-1-pin-new/150420124388?pt=Lh_DefaultDomain_0&hash=item2305bcf2e4

I hope I got that URL right. Can someone tell me how to cut and past a URL ?

Thanks - John

JKM1942 · **Joined:** Oct Mon 03, 2011 8:41 pm **Posts:** 64

Cancel the cut and paste request; my granddaughter showed me how to do it.

John

blue_lateral · **Joined:** Jan Thu 01, 1970 1:00 am **Posts:** 840

JKM1942 - The "IF/Video out" is an Amphenol "microphone" connector, now made by Switchcraft. Look here.

viewtopic.php?f=8&t=120944

Peter Bertini's response in that thread leads to yet another thread with even more information.

The picture was gone from ebay, but the description sounds like the right connector to me.

John

ID this RF connector

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