Using old germanium transistors like the CK722, this circuit has good gain. We found it in a publication from the 50s.
This circuit, with the help of a 15 V x 1 A source, allows to measure small resistances,...
With only one integrated circuit and few additional components, this amplifier has an output power...
This antenna tuner was found in a 1995 publication in the 1993 Electronics Hobbyists Handbook. The coil...