This circuit is based on the DCP010515 integrated circuit found in the August 1998 issue of Electronics Now magazine. This integrated circuit is not very common these days.
Frequencies up to just over 100 kHz can be obtained with an oscillator based on one of the four...
This circuit, found in a Popular Electronics from 1992, is based on an oscillator and a crystal...
This is a discrete equivalent version of an open collector TTL gate. What we have is an inverter...