[TMC] SBE Mic connector?

Wed Jun 10 14:20:35 EDT 2020

    This thread reminds me of how fast time goes by now. Just the 
other day turns out to be back when women wore bustles, it only 
seems like it was last week. Very scary.

On 6/10/2020 10:51 AM, Meir Ben-Dror WF2U wrote:
> 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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-- 
Richard Knoppow
1oldlens1 at ix.netcom.com
WB6KBL