Bass and treble control (CB8720E)

This passive circuit was found in a 1993 Electronics Hobbyst Handbook. The circuit has the conventional Baxandall configuration.

Debounced flip Flop (CB9256E)
Found in an American magazine from 1968, this circuit produces pulses free of bounces on its...
Temperature Sensor (CB1591E )
This circuit uses a 6-bit A / D converter from Philips, and has its output compatible with most...
Short circuit eliminator for batteries (CB9541E)
The purpose of this circuit is to produce a quick discharge on a shorted battery to attempt its...