Gain 10 Voltage Amplifier (T456E)

This 4-stage circuit has a voltage gain of 10 and negative feedback. The circuit was found in an old MIT publication.

Overcurrent oscillator (CB9627E)
The frequency of this circuit depends on the crystal. The transistor supports a modern equivalent. We...
Selective Amplifier (CB19010E)
We found this circuit in an old documentation. The operational amplifier used is uncommon today, but...
Logarithmic Amplifier II (CB19488E)
This configuration, which uses a transistorized circuit in the feedback, provides a logarithmic response...