A Simple Approach to YIG Oscillators

YIG oscillators have been in use for several decades now, mainly in relation to equipment for professionals from well-known manufacturers. However, we radio amateurs have been prohibited from enjoying their outstanding characteristics for many years, owing to the high prices involved. But for some years now, YIG oscillators have been obtainable at reasonable prices on the surplus market. Most of the equipment available has already been taken out of service, but this poses no problems as a rule, since YIG oscillators  have a very long service life and are of excellent quality. This article is intended to provide some practical help regarding a simple approach to these high-quality oscillators.