Applying an operational of the time, this circuit of an old documentation can be elaborated with modern operational. The feed must be symmetrical.
This circuit is from a 1976 Motorola CMOS manual. It can be implemented with modern Darlingtons like...
This oscillator produces short duration pulses using a PUT. The circuit is from a Radio...
Found in Raytheon's 1960s transistor circuit manual, this circuit employs the CK722, one of the...