"Paul Burridge" wrote in message
news

Hi,

I'm trying to track down the name for a certain type of oscillator
which I dimly recall seeing in an old book called Radio & Line
Transmission that I bought and lost over 3 decades ago.
In simple terms, it has a crystal in the base/emitter circuit and a
C/L tank for the resonant frequency of the crystal in the collector
circuit. In this way it can't flip into an overtone since it only has
gain at the crystal's fundamental. Anyone know the name for it?

Why don't you think the crystal goes low impedance at it's odd harmonics? If
you'll design the circuit properly, it will give no trouble with overtone
operation. Don't remember ever having any problems selecting one to operate
on the fundamental, usually, it's selecting between 5th and 7th overtone or
7th and 9th that gets a little sticky.

W4ZCB