[Milsurplus] BC-669 connector

[Michael Hanz]

Sorry, that ought to be a #1 center drill.  My brain went south for a 
minute there.

On 11/6/2026 1:09 PM, Michael Hanz via Milsurplus wrote:
>
> With a tapered file, /lots/ of effort.
>
> With a #3 center drill, you can drill out the smaller hole and leave 
> it with the correct .125" sleeve size for the connector pin.  Use lots 
> of lubricant.  More importantly, it will maintain the center location 
> of the original hole, a process that is almost impossible using a 
> tapered file.  (I've tried...)
>
> 73,
> Mike KC4TOS
>
> On 11/6/2026 3:10 AM, Jim Whartenby via Milsurplus wrote:
>> Robert
>> How much effort do you think would be required to open up those three 
>> #16 contacts in a 28-8P connector to accept #12 contacts using a 
>> tapered Swiss file?  A half day's work versus patiently waiting for a 
>> couple of years seems worthwhile, doesn't it?
>> Regards,
>> Jim
>>
>> *Logic is a systematic method of coming to the wrong conclusion with 
>> confidence.* *Murphy*
>>
>>
>> On Thursday, November 5, 2026 at 07:43:14 PM CST, Robert Goff 
>> <robert.h.goff at gmail.com> wrote:
>>
>>
>>     Seems like this subject comes up every few years.
>>     Here is Robert Down's response to me back in 2012:
>>     ________________________________
>>
>>     Sorry, but the connectors are NOT AN 3108-28-8S or P.  They are
>>     actually AN
>>     3108-28-767S or P.  Which were custom modified from the 28-8. 
>>     That's why
>>     they are so difficult to find.  Amphenol does not appear to have
>>     actually
>>     made any -28-767 inserts.  To add to the confusion, most if not
>>     all of the
>>     modified inserts that I have seen still have -8 molded into the
>>     face.  The -767
>>     was only marked on the barrel (and not on all of them, either).  The
>>     difference is that the 28-8 has 10 #16 and 2 #12 contacts.  The
>>     28-767
>>     has 5 #12.
>>     three of the holes for the #16 (A,B,C) were bored out for #12.
>>
>>
>>     I think Bill Perry has been sold out of the proper connector for at
>>     least 15 years. I finally did find an original cable just by
>>     patiently
>>     watching ebay. It took a couple years and shipping from Italy, but I
>>     got it.
>>     Good Searching,
>>     73,
>>     de Robert W7MKA
>>     ______________________________________________________________
>>     Milsurplus mailing list
>>     Home: http://mailman.qth.net/mailman/listinfo/milsurplus
>>     Help: http://mailman.qth.net/mmfaq.htm
>>     Post: mailto:Milsurplus at mailman.qth.net
>>
>>     This list hosted by: http://www.qsl.net
>>     Please help support this email list: http://www.qsl.net/donate.html
>>
>>
>> ______________________________________________________________
>> Milsurplus mailing list
>> Home:http://mailman.qth.net/mailman/listinfo/milsurplus
>> Help:http://mailman.qth.net/mmfaq.htm
>> Post:mailto:Milsurplus at mailman.qth.net
>>
>> This list hosted by:http://www.qsl.net
>> Please help support this email list:http://www.qsl.net/donate.html
>
> ______________________________________________________________
> Milsurplus mailing list
> Home:http://mailman.qth.net/mailman/listinfo/milsurplus
> Help:http://mailman.qth.net/mmfaq.htm
> Post:mailto:Milsurplus at mailman.qth.net
>
> This list hosted by:http://www.qsl.net
> Please help support this email list:http://www.qsl.net/donate.html
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.qth.net/pipermail/milsurplus/attachments/20261106/d3ab4ef2/attachment-0001.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: us3wl90h8aqOyKsG.png
Type: image/png
Size: 44730 bytes
Desc: not available
URL: <http://mailman.qth.net/pipermail/milsurplus/attachments/20261106/d3ab4ef2/attachment-0001.png>