High impedance stage (CB20564E)

This high input impedance amplifier stage was found in a 1963 documentation. The transistor germanium of the time.

Transducer Differential Amplifier (CB14091E)
The circuit is from the 1994 National Semiconductor Linear Applications Handbook but can be...
Buffered Voltage Reference (CB21177E)
This circuit was obtained from an Analog Devices documentation from the 90's. The circuit is for a...
Mixer (CB26099E)
We found this 4-channel mixer in the August 1999 issue of Electronics Now magazine. The circuit can...