This small signal amplifier circuit was found in Motorola's 1969 documentation. The FET and the transistor can be of any type and is battery powered since the consumption is very low.
The purpose of the circuit of the figure is to control a servomotor remotely using a simple signal...
This 1969 Mullar circuit appears elsewhere on this site. The circuit uses germanium diodes and the...
Found in an English publication from 1967, this circuit generates 5 kHz signals with harmonics that...