Attached are a couple of pictures of these curious oscillators.  As there are no mounting holes to secure these, I assume they were held in a clamping arrangement.There appears to be a threaded thermometer well in the front and a frequency adjustment in the rear under a cap screw.  The power/control connectors turns out to be a Micro-D type -- a rather expensive connector.I have been able to remove the cover; however, the interior is potted, thus concealing its contents Bruce, KG6OJI

Hello, Yes, this is a micro-D 9 pin female, usually quite expensive although for 9-pin, there are some lower-cost parts available: https://www.digikey.es/product-detail/es/norcomp-inc/380-009-113L001/NOR1142-ND/2798595 shall mate the one in the oscillator Best regards, Javier, EA1CRB On 12/5/20 19:22, Bruce Hunter via time-nuts wrote: > Attached are a couple of pictures of these curious oscillators.  As there are no mounting holes to secure these, I assume they were held in a clamping arrangement.There appears to be a threaded thermometer well in the front and a frequency adjustment in the rear under a cap screw. > The power/control connectors turns out to be a Micro-D type -- a rather expensive connector.I have been able to remove the cover; however, the interior is potted, thus concealing its contents > Bruce, KG6OJI > > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. -- --------------------------------------------------------------------------------- Javier Herrero Chief Technology Officer EMAIL: jherrero@hvsistemas.com HV Sistemas S.L. PHONE: +34 949 336 806 Teide 4, Núcleo 1 Of. 0.1 FAX: +34 949 336 792 28703 San Sebastián de los Reyes - Madrid - Spain WEB: http://www.hvsistemas.com

On 5/12/20 10:22 AM, Bruce Hunter via time-nuts wrote: > Attached are a couple of pictures of these curious oscillators.  As there are no mounting holes to secure these, I assume they were held in a clamping arrangement.There appears to be a threaded thermometer well in the front and a frequency adjustment in the rear under a cap screw. > The power/control connectors turns out to be a Micro-D type -- a rather expensive connector.I have been able to remove the cover; however, the interior is potted, thus concealing its contents > Bruce, KG6OJI > > > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. > Definitely a Micro-D - these are normally $50-100, but there are some less expensive versions out there. A MIL-DTL-83512 You might look for spacewire cables/connectors - for flight they're expensive, but if you look for "lab grade" you might find some cheaper ones. Here's a $12 part that is probably mating. https://www.digikey.com/product-detail/en/norcomp-inc/380-009-113L001/NOR1142-ND/2798595 I prefer the ones with flying leads, because it's a tiny connector and hard to solder without damaging it.

This may be heresy, but there are a lot of them over on that auction site. 73, Dick, W1KSZ On Tue, May 12, 2020 at 11:09 AM jimlux <jimlux@earthlink.net> wrote: > On 5/12/20 10:22 AM, Bruce Hunter via time-nuts wrote: > > Attached are a couple of pictures of these curious oscillators. As > there are no mounting holes to secure these, I assume they were held in a > clamping arrangement.There appears to be a threaded thermometer well in the > front and a frequency adjustment in the rear under a cap screw. > > The power/control connectors turns out to be a Micro-D type -- a rather > expensive connector.I have been able to remove the cover; however, the > interior is potted, thus concealing its contents > > Bruce, KG6OJI > > > > > > _______________________________________________ > > time-nuts mailing list -- time-nuts@lists.febo.com > > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > > and follow the instructions there. > > > > Definitely a Micro-D - these are normally $50-100, but there are some > less expensive versions out there. A MIL-DTL-83512 > > You might look for spacewire cables/connectors - for flight they're > expensive, but if you look for "lab grade" you might find some cheaper > ones. > > Here's a $12 part that is probably mating. > > https://www.digikey.com/product-detail/en/norcomp-inc/380-009-113L001/NOR1142-ND/2798595 > > I prefer the ones with flying leads, because it's a tiny connector and > hard to solder without damaging it. > > > > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. >

Potted! That just makes the challenge all the more interesting. Chip and rip carefully. It depends on the potting but they tend to flake off sometimes in nice chunks. The really hard stuff is no fun but can be done. On Tue, May 12, 2020 at 2:09 PM jimlux <jimlux@earthlink.net> wrote: > On 5/12/20 10:22 AM, Bruce Hunter via time-nuts wrote: > > Attached are a couple of pictures of these curious oscillators. As > there are no mounting holes to secure these, I assume they were held in a > clamping arrangement.There appears to be a threaded thermometer well in the > front and a frequency adjustment in the rear under a cap screw. > > The power/control connectors turns out to be a Micro-D type -- a rather > expensive connector.I have been able to remove the cover; however, the > interior is potted, thus concealing its contents > > Bruce, KG6OJI > > > > > > _______________________________________________ > > time-nuts mailing list -- time-nuts@lists.febo.com > > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > > and follow the instructions there. > > > > Definitely a Micro-D - these are normally $50-100, but there are some > less expensive versions out there. A MIL-DTL-83512 > > You might look for spacewire cables/connectors - for flight they're > expensive, but if you look for "lab grade" you might find some cheaper > ones. > > Here's a $12 part that is probably mating. > > https://www.digikey.com/product-detail/en/norcomp-inc/380-009-113L001/NOR1142-ND/2798595 > > I prefer the ones with flying leads, because it's a tiny connector and > hard to solder without damaging it. > > > > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. >