Efratom M100 oscillator connector
I got a really good deal on a used Ball Efratom M-100 oscillator, and I
am unable to find a power connector for it. The manual for the unit
states that it is a part number
M28748-/8-D10LIA
Evidently the M28748 series of connectors are fairly widely used in
military equipment, but a search for that particular p/n didn't turn up
anything, none of the parts houses that I deal with handle mil type
connectors, and I really doubt of I would have any luck at all as an
electronics hobbyist calling up a defense contractor trying to buy one
connector (to say nothing of what they would want for it even if they
agreed to sell one to me...).
The connector is rectangular and has three rows of pins, seven in the
two outer rows and six in the center.
Anyone have any ideas?
Thanks in advance,
Mike
Hi Mike:
See:
http://www.prc68.com/I/O1814.shtml#M100
You might have better luck looking for Winchester connector.
Have Fun,
Brooke Clarke
http://www.PRC68.com
http://www.precisionclock.com
http://www.prc68.com/I/WebCam2.shtml 24/7 Sky-Weather-Astronomy Cam
mlmccauley wrote:
I got a really good deal on a used Ball Efratom M-100 oscillator, and I
am unable to find a power connector for it. The manual for the unit
states that it is a part number
M28748-/8-D10LIA
Evidently the M28748 series of connectors are fairly widely used in
military equipment, but a search for that particular p/n didn't turn up
anything, none of the parts houses that I deal with handle mil type
connectors, and I really doubt of I would have any luck at all as an
electronics hobbyist calling up a defense contractor trying to buy one
connector (to say nothing of what they would want for it even if they
agreed to sell one to me...).
The connector is rectangular and has three rows of pins, seven in the
two outer rows and six in the center.
Anyone have any ideas?
Thanks in advance,
Mike
HI Mike,
I have 2 FRK's here, both use a connector made by Positronic, it's a "SGM
20".
See http://www.connectpositronic.com/downloads/pdf/C008RevC_HighDenRec.pdf
The Positronic site (for Australia) is:
Australia (Commercial & Industrial & selected Military Accounts)
Walcom Pty. Ltd
118 Pryor Road
Ourimbah, NSW 2258 Australia
Phone: + 61 2 4362 3477
Fax: + 61 2 4362 3293
www.walcom.com.au
Contact: Mark Walpole
mark@walcom.com.au
I bought one complete, used connector assembly on Ebay a while ago for like
$10. The P/N on the backshell is stamped "M28748/8-D10L1A".
Regards,
Bob Martinson, N1VQR
-----Original Message-----
From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com] On
Behalf Of mlmccauley
Sent: Saturday, December 22, 2007 10:20 PM
To: time-nuts@febo.com
Subject: [time-nuts] Efratom M100 oscillator connector
I got a really good deal on a used Ball Efratom M-100 oscillator, and I
am unable to find a power connector for it. The manual for the unit
states that it is a part number
M28748-/8-D10LIA
Evidently the M28748 series of connectors are fairly widely used in
military equipment, but a search for that particular p/n didn't turn up
anything, none of the parts houses that I deal with handle mil type
connectors, and I really doubt of I would have any luck at all as an
electronics hobbyist calling up a defense contractor trying to buy one
connector (to say nothing of what they would want for it even if they
agreed to sell one to me...).
The connector is rectangular and has three rows of pins, seven in the
two outer rows and six in the center.
Anyone have any ideas?
Thanks in advance,
Mike
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Robert E. Martinson wrote:
HI Mike,
I have 2 FRK's here, both use a connector made by Positronic, it's a "SGM
20".
Thanks for the reply and the tips, Bob.
The SGM20 looks to be the correct item. I hadn't tried eBay, I didn't
think that anyone would offer something like an individual connector for
sale, but evidently they do.
I had seen some references pop up in Google to Positronic, but I had
assumed that they only sold in quantity to defense contractors, given
all of what I saw in the their product line carried military spec
numbers. But maybe not. If I don;t have any luck with eBay, I'll give
them a call.
Anyway, thanks agian.
Mike, WB5MYY
Hello Mike,
I can provide the mating connector contacts for the Winchester connector. I
use these on other surplus items (alas, no Rb standards). Drop me a note to
rogburn_at_warpspeed1_dot_net if you would like to have some of these. I am
in Manvel, Texas.
73
bob N5LXK
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