This TTL circuit is from a Radio Electronics magazine from February 1973. The circuit must be powered with 5 V and the maximum frequency depends on the TTL integrated circuit.
In the figure we give a simple divisor by 2. The complementary output (Q /) is connected to input...
This circuit is from a Modern Electronics from April 1990. The circuit can be assembled with BC558...
This configuration found in GE documentation from the 90s, can also be seen elsewhere in this...