Analog Divider Multiplier (CB21035E)

This circuit was found in an Analog Devices publication from the 1990s. The circuit performs input voltage multiplication and division operations.

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Infrared Transceiver (CB16886E)
The simple optical intercom we show is from a 1995 documentation. The LEDs can be infrared or...
Tape Recorder Nonitor (CB24170E)
With this circuit it is possible to monitor a signal that is being recorded on an old tape...
Controlled Oscillator (CB12683E)
An oscillator that can be frequency controlled by a resistive sensor is shown in the figure. The...