[time-nuts] Old Crystal
Elio Corbolante
eliocor at gmail.com
Mon Mar 1 01:09:20 UTC 2021
> I've picked up a couple of old crystals. Mostly because they look neat.
> They are 1Mhz, in a glass tube. The quartz is ~25mm dia, at about 1 mm
> thick. Was able to get them to oscillate using a Colpitts circuit. They
> will oscillate at 2.851Mhz (probably some strange mode) if given the
> chance.
>
> I've been scouring my reference books here, and haven't had much luck
> finding any details on how one would even guess at the parameters of a
> quartz like this.
>
It seems to me they are of Russian origin: the write "кÐÑ" means "kHz"
More information about the Time-nuts_lists.febo.com
mailing list