This commercial transistor radio was manufactured by RCA in the 1960s. The circuit has only 4 transistors and is powered by a voltage of 9 V with an audio power of 20mW.
In the same way that we can regulate the voltage in the positive branch of the circuit, we can...
This microtransmitter operates at a frequency between 3.5 MHz and 10 MHz determined by the...
This system of sequential lights for shop windows, discotheques, stores, does not use integrated...