This circuit with the NE602 was found in the February 1997 Electronics Now magazine. The NE602 integrated circuit is not very common these days.
An oscillator whose frequency can be adjusted between 500 Hz and 5 kHz with the use of a...
This circuit of industrial applications has an interesting characteristic: the relay is only...
Any TTL inverter can be used in this circuit. We found it in documentation from the 80s, but it...