Driver for oscillograph (T459E)

This circuit from an old MIT documentation excites an oscillograph element, an old waveform viewer.

Transistor testing center (CB23768E)
We found this test circuit in a March 1967 Radio Electronics. The circuit uses a zener-regulated supply and...
Standing Wave Meter (CB16898E)
We found this circuit in a 1995 publication. It applies to transceivers in the citizen's range (11...
Digital sinusoidal generator (CB24473E)
The figure shows how to associate flip-flops in a shift register to obtain a lower frequency...