Low noise amplifier (T466E)

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

Logic Input Motor Control L165 (CB15144E)
We found this shield circuit in the SGS Integrated Circuits Manual of 1982. The circuit is...
Rhythmic Lights (CB23916E)
This circuit with transistors and a crystal microphone appeared in Radio Electronics magazine in...
UHF Booster For TV (CB12592E)
This circuit amplifies the signals in the UHF band starting at 470 MHz, reaching just over 900...