[TMC] SBE Mic connector?

Wed Jun 10 13:51:47 EDT 2020

When I put my PMO/SBE-3/PAL-350 system together just over a year ago, I
bought a couple of the plugs at Harleys Electronics, a local "traditional"
electronics parts store in Spartanburg, SC. They still had several of them
then.

73, Meir WF2U
Landrum, SC

-----Original Message-----
From: tmc-bounces at mailman.qth.net On Behalf Of John Poulton
Sent: Wednesday, June 10, 2020 10:49 AM
To: Richard Knoppow <1oldlens1 at ix.netcom.com>
Cc: tmc collector's group <tmc at mailman.qth.net>
Subject: Re: [TMC] SBE Mic connector?

Indeed.. as Nick K4NYW pointed out, these things DO show up at hamfests
(remember those?), so worth looking for, if/when there's another one.  I
haven't searched the usual surplus places (Nebraska, Fair), but for someone
sufficiently desperate, they can be found!

73, John

On Wed, Jun 10, 2020 at 10:35 AM Richard Knoppow <1oldlens1 at ix.netcom.com>
wrote:

>     Thank you John, that confirms my visual identification. I happen 
> to have a couple of other items with similar connectors, for instance 
> a Barker & Williamson SSB generator. I also used one for some reason 
> on a speech compressor I built a million years ago. They were bargain 
> bin parts back then. My Electro-Voice 664 microphone uses a four pin 
> version of the connector, it functions as the impedance chooser 
> depending on which pins are connected to the cable.
>     Of course, at one time Amphenol was best known for those screw on 
> coaxial connectors found on every public address amplifier. Hard to 
> find now but must have been made in the many millions.
>
> On 6/10/2020 6:56 AM, John Poulton wrote:
> > Richard, Eugene, and the group,
> >
> > Here's where the 'Drawings' page at tmchistory.org 
> > <http://tmchistory.org> can be somewhat helpful; you just have to do 
> > a bit of detective work.  And, please feel free to bug me if a 
> > drawing you need hasn't been scanned.. I'll do my best to get it 
> > onto the list!
> >
> > First, referring to the parts list for the SBE-2/-3 list in the SBE 
> > manual, you'll find that connector J101 has TMC part number 
> > JJ-133-3.  Part numbers are also the drawing numbers! That 
> > particular drawing has been scanned, and there's a note on the 
> > drawing that says this connector (the panel connector on the
> > SBE) is an Amphenol 91PC3F.
> >
> > Doing a bit more digging in the later SBE manual, you'll find that 
> > it mentions the male mic connector that mates with 91PC3F as TMC 
> > part number PL-132-3.  Once again, referring to this drawing (though 
> > it hasn't been scanned) the note on the listing says that this is an 
> > Amphenol 91MC3M.
> >
> > Needless to say, these Amphenol parts haven't been made for a long 
> > time, but I found a bunch of them listed on ebay (at fabulous 
> > prices, of course).  See, for example:
> >
> >
> https://www.ebay.com/itm/3-Pin-AMPHENOL-91MC3M-male-microphone-connect
> or-cable-plug-Vintage-NOS-USA-QTY/163525717988?epid=1301663412&hash=it
> em2612e46fe4:g:D14AAOSwmqZcWKCT
> >
> > So, you wanted a rare and obsolete part, and you wanted it *cheap*?!  
> > You ask for too much, grasshopper!
> >
> > 73, John K4OZY
> >
> > On Tue, Jun 9, 2020 at 6:17 PM Richard Knoppow 
> > <1oldlens1 at ix.netcom.com <mailto:1oldlens1 at ix.netcom.com>> wrote:
> >
> >     Do you have the handbook? There is one at:
> >     <
> http://www.tmchistory.org/tmc_manuals/manuals_db/sbe/tm_sbe-2_12_63.pd
> f>
> >
> >         From the photo of the front panel it appears to be this
> >     one:
> >     <
> https://www.ebay.com/itm/AMPHENOL-91-MC3M-3-PIN-MICROPHONE-PLUG-CONNEC
> TOR-FOR-SHURE-55-COLLINS-32RA-/400741248184
> >
> >
> >         This looks a little pricey but gives the type number so
> >     you
> >     can search for one at a better price. These were very
> >     common at
> >     one time.  I am guessing at the size since the photo makes it
> >     look bigger than I remember them.
> >
> >     On 6/9/2020 1:04 PM, W2HX wrote:
> >     > Hi all, what is the name of the Mic (or MIKE) connector
> >     on the front of the SBE-2/3? And are mics findable with
> >     this connector on it and wired properly? Or must I wire a
> >     mic up myself?
> >     >
> >     > Thanks
> >     > Eugene
> >     >
> >     >
> >     >
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> >     --
> >     Richard Knoppow
> >     1oldlens1 at ix.netcom.com <mailto:1oldlens1 at ix.netcom.com>
> >     WB6KBL
> >
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> --
> Richard Knoppow
> 1oldlens1 at ix.netcom.com
> WB6KBL
>
>
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