This commercial radio with 3 earphone listening transistors was manufactured in Japan in the 1960s. The medium-wave circuit uses germanium transistors and is powered by a 9 V battery.
This circuit is based on a Texas LinMOS integrated circuit that consists of an operational...
In this circuit, a load is fed only when the voltage reaches a certain value. Currents of up to a...
This circuit is intended for communications receivers. We can find it in a documentation from the...