Dual tube receiver (T1600E)

This receiver employs two dual triode valves. Receiver is from a 1949 Radio Electronics. Power supply not provided.

Operational Amplifier Thermostat (CB15790E)
The sensor is an NTC and in the connection as shown in figure (a) we have the trigger with the...
Oscillator 741 (CB19371E)
This oscillator configuration with the operational 741 was obtained in a European documentation from the...
Full wave dimmer (CB7208E)
Found in Motorola's 1965 manual, this full-wave dimmer controls a load that depends on the used...