This Schmitt trigger in current mode for frequencies up to 50 MHz was found in a 1969 Motorola manual. Appropriate switching transistors can be used.
This is the traditional configuration of a 6 or 12 V source with 7806 or 7812 integrated circuits, for a...
Found in an Electronic Design from the 90s, this circuit uses high voltage operationals of the...
This reaper or signal limiter can be used to convert a sinusoidal signal into a square. The...