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Describes the radio frequency amplification and audio stages of the receiver.
Explains the single dial control and supplementary selectivity adjustment for tuning.
Discusses shielding for maximum selectivity and avoiding regeneration in the receiver.
Explains the function and adjustment of the receiver's volume control knob.
Lists the specific types of vacuum tubes used in models 90, 91, 92, 93, 102, and 103.
Describes the five-gang condenser unit, its shielding, and construction.