- Published in issue 10/1996 on page 20
Thrifty crystal oven
It is well known that the frequency of a crystal oscillator depends to some degree on the ambient temperature. AIthough this is often of no consequence, there are cases when the frequency is needed as a standard and any deviation fram its true value is not acceptable. For instance, the crystal oscillator in most frequency meters and in many signal generators is fitted in an oven that keeps the crystal temperature at a stable value.