Adjustable reference (CB21539E)

This circuit was obtained from an old American publication. The uA702 is a differential amplifier and the diode is a zener.

Low Drift Sampling and Hold (CB5954E)
This low drift or offset circuit is from an 80's documentation. The configuration can be made with...
Magnetic Head Preamplifier (CB18898E)
This is a commercial circuit from a Japanese publication from 1972. The circuit uses a FET that...
Instrumentation Amplifier (CB12173E)
This instrumentation amplifier was obtained from Popular Electronics in 1993. The operational...