Crystals

Domenic M. Mallozzi DMallozzi at AOL.COM
Thu May 18 13:24:42 EDT 2000


Regarding crystal frequencies, the people who have commented on load
capacitance and series resonant crystals are correct, in circuits with other
design constants they frequency of oscillation may be noticeably different.

Also, FT243 crystals and similar items are not high precision devices. If the
seals are old I have seen them change frequency due to oxidation and also as
the years go by the pressure applied to the crystal by the electrode and
spring tension changes result in frequency changes.

Dom
N1DM

Sponsored by the City of Tempe 

Listserver Submissions:  heath at listserv.tempe.gov
Listserver Subscription: listserv at listserv.tempe.gov - "subscribe heath 'name' 'call'"
Listserver Unsubscribe: listserv at listserv.tempe.gov - -"signoff heath"




More information about the Heath mailing list