Explorer for all ranges (T1098E)

This circuit was found in a Radio Craft from October 1946. Power supply not shown, and tubes are 1.5V filament types.

High-gain composite amplifier (CB8069E)
Indicated in Maxim's documentation from the 90's, this circuit has a gain of 40 dB and an output...
Noise Limiter (CB946E)
This circuit cut the noise peaks by means of diodes so that they do not appear in the output...
Transistorized Voltmeter (CB18922E)
This 4-transistor voltmeter was found in old European documentation but uses common...