Low noise amplifier (T466E)

Found in 1948 MIT documentation, this 4-tube amplifier is characterized by its low noise level.

UCC21225A Two Channel Isolated Gate Driver - Texas Instruments
Texas Instruments UCC21225A is available from Mouser Electronics. It is an isolated gate driver...
FET Instrumentation Amplifier (CB4933E)
We found this circuit with very high input resistance in an old documentation. The circuit is still...
Stepper Motor Control (CB13805E)
This configuration was found in a 1976 publication. The outputs of the logic circuits are applied to...