Hysteresis compensator (CB7980E)

Suggested by a 90's Linear Databook, this circuit compensates for capacitor hysteresis. The main component is from the era.

Ladder Generator (CB9105E)
Found in Linear Technology documentation from the 1980s, this generator uses integrated circuits...
Hybrid millivoltmeter (CB23547E)
We found this circuit in a Radio Electronics from December 1963. The circuit combines valves and...
Mini Telegraphic Oscillator (CB12879E)
This oscillator, from an old Argentine publication from 1973, uses the inductance of the 500 ohms...