This circuit has its frequency controlled by a 1MHz crystal. The circuit must be powered by a voltage of 5V. The capacitors must be ceramic. The generated signal is rectangular.
This circuit can be used at the same time as a preamplifier and voice by activating a relay when...
This 1000: 1 voltage-controlled filter circuit was found in an Electronics Today International in a 1980s...
This transmitter emits signals in the FM range, reaching a few meters away. The modulation...