Found in an ancient American documentation, this circuit can generate signals up to 40 MHz for a Z80, microcontroller widely used at the time. The circuit must be powered with 5 V and also serves as a shield.
This circuit is from the 1993 Motorola Linear Interface ICs. Equivalent operating may be used and...
The basic circuit of a flip-flop for use as a frequency divider or one-bit memory is shown here....
This circuit is from 1986 documentation, being adaptable in radios of that time. The circuit uses the...