This circuit was found in a Motorola manual from 1968. As it can be obtained 20 V at 15 kHz from 120 V x 60 Hz. The components are of the time.
Suggested by Philips in 1966 documentation, this limiter can be found elsewhere on this website....
March 2017 - Microchip's new 8-bit PIC16F15354 microcontrollers can now be obtained from Mouser...
This circuit was obtained from a Poptronics in June 2001. The magazine no longer exists, but the...