This oscillator provides a 1 MHz rectangular signal determined by the capacitors used. The circuit must be powered by a voltage of 5 V. The maximum frequency depends on the logic used.
This circuit was found in the Intersil Databook. The integrated circuit used is uncommon today. R2 sets...
We find this circuit in a radio amateur publication of 1977. Its purpose is to measure the...
This circuit that can be used as a three-tone domestic bell has a traditional configuration that...