For input signals with high noise, a two-transistor cascoded SO is preferable. The output buffer, Q2 , provides protection between the oscillator and the output world. However, if you want to simplify ...

This FM oscillator can be used for wireless audio, microphone and part-15 applications where stable frequency modulated oscillators is needed. Lt can be varied to cover 75 to 150 MHz, as needed. FM ...

For [Grug Huler], this was one of those “just for funsies” projects stemming from a data sheet example circuit showing a bulb-stabilized LM386 audio oscillator.

The FCC-required proof-of-performance was an annual ritual for broadcast engineers from the earliest days of radio up to deregulation in the 1980s. In the early 1970s, many engineers might have ...