Hi, I have added a picture of the bottom of the 5 MHz crystal. The other one has a similar pin arrangement, two pairs twisted and soldered together, except they aren't cut as short. The seller indicated they were manufactured in Russia for military use.
If a suitable socket cannot be found, I thought about 3D printing little stands for them to sit on when soldered to a board. Dan On Tue, Feb 2, 2016 at 6:54 AM, Tim Shoppa <[email protected]> wrote: > Interesting! Date code from the 90's? Russian, right? > > They certainly look like common 7 pin miniature tube pattern. > > But unlike a real 7 pin tube that actually has stiff Cunife or Fernico > pins, it looks like you have just tinned wires out the bottom of yours, and > your pics don't show the bottom of the tube, but it looks like outside the > glass the wires from two different pin-holes are wrapped together? > > For testing purposes I don't see any problem using a 7-pin miniature tube > socket if you have it on hand and carefully inserting the pairs of twisted > wires into the socket holes. > > But for more permanent use seems to make more sense to solder the pins to a > PCB if they are tinned already. > > Tim N3QE > > On Mon, Feb 1, 2016 at 9:58 PM, Daniel Watson <[email protected]> > wrote: > > > Hi, > > > > I purchased a pair of interesting glass envelope crystals for a project. > > Here are some pictures: > > > > > http://syncchannel.blogspot.com/2016/02/glass-envelope-quartz-crystals.html > > > > Does anyone have an idea about what mount/socket I should buy for these? > I > > read a previous thread on the list about Bliley crystals using a B7G > mount, > > but I'm not sure if that type might work here. > > > > Also, when building up a circuit to make these oscillate, are there any > > specific differences about crystals in this package that I should keep in > > mind? > > > > > > Thanks much, > > > > Dan W. > > _______________________________________________ > > time-nuts mailing list -- [email protected] > > To unsubscribe, go to > > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > > and follow the instructions there. > > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
