Other amplifiers of the series like the MC3301, MC3401 and LM2900 can be used in this circuit. We found this setting on Motorola's Linear Interface ICs. The circuit uses a magnetic sensor.
This simple circuit, powered by 4 batteries or 9 V battery, brings together several functions of...
When a voice signal enters this circuit, the volume of the music being played automatically...
This old amplifier uses germanium transistors from the time. The circuit is from a Mullard...