Dual tube receiver (T1600E)

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

Precision Bidirectional Current Sensor (CB5260E)
This circuit senses two-way currents serving to monitor battery charge and discharge. We find it...
Two Transistors MW Receiver (CB3976E)
This receiver was found in a 1968 publication, but can be mounted with a BC548 and BC558 in place...
Thermocouple amplifier (CB3938E)
We found this circuit in an old publication dealing with operational amplifiers. The circuit uses...