Path: utzoo!utgpu!water!watmath!clyde!rutgers!topaz.rutgers.edu!ron From: ron@topaz.rutgers.edu (Ron Natalie) Newsgroups: sci.electronics Subject: Re: Crystal Question (Please forgive me) Message-ID: <18035@topaz.rutgers.edu> Date: 13 Feb 88 14:30:01 GMT References: <2533@crash.cts.com> Distribution: na Organization: The Office of Mismanagement and Bean Counting Lines: 11 High frequency oscillators frequently use crystals who would provide a lower fundimental frequency and use one of its harmonics. For example, back in my dim novice days (when novices were still required to use crystals) all my 15 meter (21 Mc) crystals were actually marked for somewhere around 7 Mc. The transmitter used the third harmonic (overtone) to generate the 21 Mc signal. -Ron Frequency is measured in cycles, not cubits, bushals or yards. Hertz rents cars.