1940s commercial receiver (T1618E)

This receiver was found in a Radio Electronics from 1949. It is a superheterodyne of the time using 6 tubes.

SM9x Low Pressure Uncompensated Sensors - SMI
Mouser Electronics is supplying the SMi (Silicon Microestructures) uncompensated low pressure...
Light Controlled Volley Oscillator (CB25763E)
We found this circuit in the September 1994 issue of Electronics Now magazine. The circuit uses...
Overtemperature Switch 741 (CB25866E)
The circuit is from a June 1995 Electronics Now. The relay is power-dependent and both R1 and R2...