Two-input amplifier (CB21661E)

The critical component of this 1967 amplifier is the driver transformer. The circuit has both high and low impedance input.

6 or 12 V x 1 A Regulated Power Supply (CB1168E )
This is the traditional configuration of a 6 or 12 V source with 7806 or 7812 integrated circuits, for a...
Driver for piezoelectric motor (CB7998E)
Found in an Electronic Design from the 90s, this circuit uses high voltage operationals of the...
Reaper (CB21928E)
This reaper or signal limiter can be used to convert a sinusoidal signal into a square. The...