Saw tooth converter (CB8930E)

Found in a 1969 EEE, this circuit converts input pulses into linear sawtooth signals, as shown in the graphs beside the diagram.

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Audio Voltmeter (CB25356E)
The purpose of this circuit is to measure the intensity of audio signals. We found it in the...
12 V Battery Charger (CB13013E)
The battery charger suggested in the figure has its current limited by resistor R1. This component can...
Differential Pair (CB6134E)
This differential amplifier, found in a 1964 Electronic Design, has a gain of 30. The setting can be...