Found in Unitrode documentation, this oscillator uses some unusual components today such as PU and the 3 M potentiometer. The power can be made with voltages around 15 V.
The Texas Instruments TPS7A92 integrated circuit consists of a low-voltage (LDO) linear voltage...
Using an RCA CA3035 integrated circuit, this turntable circuit was found in the February 1970...
This amplification stage circuit with a germanium transistor was found in a 1980s documentation. The...