Found in a 90’s 73 magazine for radio amateurs, this circuit provides a few milliamps of output with -15 V from a 3 V input, when the consumption will be 10 mA.
This circuit for triggering a CMOS gate without rebounding was found in the October 1974 issue of...
This generator is more complete than the previous one, being able to generate pulses as indicated...
This 1975 circuit for automotive applications replaces the mechanical vibrator found in old cars...