This circuit can be used as the front end of circuits that require precision 50Hz pulses. The circuit uses two counter ICs CD4060 and CD 4017 to divide the basic frequency to generate 50 Hz pulses.

This circuit and its description can be found as figure 13 in the AD8037 data sheet. (from the days when ADI appended lots of lovely app notes). The second pulse generator output (left) can be found ...

Instead, they should have an adjustable top value and a separately adjustable bottom value: 5V and 0V, for example. The other day, I thought of a way to modify a conventional ‘diamond buffer’ (circuit ...

Developed by Picosecond Pulse Labs of Boulder, Colo., the 5650 Trigger Countdown prescalar circuit extends the triggering-frequency range of high-speed oscilloscopes and frequency counters to 16 GHz.