This circuit is from an American transistor book from the 60's. The transistor is germanium of the time.
This circuit that equipped many transistor radios from the 50's was found in an American...
Mouser Electronics is supplying the SMi (Silicon Microestructures) uncompensated low pressure...
This circuit applies to small gearboxes with motors that do not exceed 200 mA. The circuit is from...