This small 1W turntable amplifier was found in the 1975 RCA tube manual. It is a commercial circuit at the time.
Found in Motorola documentation from the 1980s, this circuit employs an integrated device from...
This circuit, from a 2001 documentation, appears elsewhere on this site. Its purpose is to obtain a...
This 9-bit DAC circuit was found in the RCA CMOS integrated circuits manual of the 1970s. The...