ADC buffer (CB9313E)

This circuit was found in documentation from Analog Devices from the 90s. The circuit uses components from that time, which are uncommon today.

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Low voltage motor control (CB22121E)
This circuit with SCR was found in an old documentation. The SCR can be the TIC106, and the...
Square oscillator (CB8450E)
This circuit was found in a 90s Popular Electronics. The frequency is determined by R3 and C1 that...
Logic converter (CB7299E)
This circuit converts negative logic signals to positive logic signals. We found it in 1969...