Unit gain buffer (CB9310S)

Found in documentation from Analog Devices from the 90s, this circuit is intended for interfacing with analog to digital converters.

Astable with the Operational LM3900 (CB4511E)
Other series amplifiers such as the MC3301, MC3401 and LM2900 can be used on this circuit. We...
741 Constant Volume Amplifier (CB25832E)
This circuit was found in the March 1995 issue of Electronics Now magazine. The circuit requires a...
Monitor receiver (CIR21944E)
This receiver was found in a documentation by Gernsback from 1960. The circuit uses high impedance...