We found this circuit in the Audio Handbook of the National Semiconductor of 1977. The circuit is used to recover vinyl media for recording on other media.
This circuit for audio signals was found in the March 1990 Radio Electronics magazine. The circuit...
This powerful FM transmitter was found in 1992 documentation. The circuit requires a 12 V source...
Suggested by General Electric in a 1965 publication this circuit uses a light bulb. Can be changed...