This automotive circuit was obtained from an 80's schematic from the integrated circuit factory itself. The voltage regulator is still common, but the operational amplifier is of the time.
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...