Covering the tabletop battery radios built by Zenith, the Chicago-based
manufacturer, each radio is described in detail. Included are
comprehensive functional descriptions on each set's operation, which
uses color-coded diagrams to aid in describing the circuits. Over 400
color photos and over 200 diagrams illustrate the thorough text. Each
radio section includes a Quick Reference Guide. Previously unpublished
information related to these radios is included for the first time. The
restoration section covers the reproduction of vital replacement parts
(pointers, pulleys, etc.) that typically need replacing, the repair of
other parts (variable capacitor, transformers, etc.), appropriate
modifications (battery adapter, etc.), and testing in order to get that
early radio working. The techniques presented can be applied to the
restoration of any 1920s radio. Also included are instructions on
reproducing any battery ("A", "B", or "C") in radios built in the 1920s.
This is an indispensable reference guide to early Zenith radios.