This circuit uses a 100 kHz crystal, but nearby frequencies can be obtained with appropriate crystals. Components are still common today.
This monostable circuit uses one of the two flip-flops available on the CMOS 4098 integrated...
aaa The circuit shown generates 100 kHz signals for calibrating the scale of a receiver in 100 to...
This simple circuit can use general purpose transistors and SCRs like the TIC106. The warning...