Low noise amplifier (T466E)

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

2W amplifier TDA1016 (CB15973E)
This is an amplifier for recorder and return containing preamplifier and power amplifier with...
Two Controls Flasher (CB16241E)
This flasher of two incandescent lamps was discovered in a 1983 documentation and it has two...
Regulador Ajustable de Corriente (CB1484S)
El circuito de la figura es un regulador de corriente con ajuste en el rango de 0 a 3 ampères. El...