Pin 4 is always high (unless a reset is desired) Pins 6,7 are tied together in monostable mode (also in the FAQ) The CD4060 could count for 3 hours and the LM555 could latch the start and end of pulse ...

The circuit shown above appears to be correctly connected as per the schematic in the previous thread. I am, however, not familiar with designs which use rounded edges for the traces. Typically, we ...

The circuit may be triggered and reset on falling waveforms, and the output circuit can source or sink up to 200mA or drive TTL circuits. In the Monostable mode, the LM555 timer acts as a one shot ...

For stable operation as an oscillator, the free running frequency and duty cycle are accurate controlled with two external resistors and one capacitor. The circuit may be triggered and reset on ...