The talking machine world (Jan-June 1928)

Record Details:

Title:
The talking machine world
Date:
Jan-June 1928
Publisher:
New York : Federated Business Publications, Inc.
Volume:
The talking machine world (Jan-June 1928)
Leaf #:
0001001
Language:
English
Collection:
Broadcasting & Recorded Sound and Recorded Sound
Format:
Periodicals
Contributor:
Library of Congress, MBRS, Recorded Sound Section
Sponsor:
Library of Congress, Motion Picture, Broadcasting and Recorded Sound Division
Coordinator:
Media History Digital Library
Description:
Date Added:
September 28, 2023
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The Talking Machine World, New York, June, 1928 143 A revolutionary AC radio by Walbert tuned by inductance and entirely eliminating the variable condenser Walbert is today one of the acknowledged builders of fine AC radio. One of the first to introduce AC operation, it is now in its third AC year. During that time it has pioneered some of the most important developments in the AC field. At the R. M. A. Show Walbert again presents an AC receiver that is fundamentally different. The new Model — Walbert 77 — is a complete unit in itself with self-contained power pack. Operation is controlled by one dial without supplemental controls. It is an eight tube set, with four tuned R. F. stages. Chief among several novel features in this new receiver is the tuning arrangement. Variable condensers, one of the commonest sources of trouble in radio, are eliminated entirely. All tuning is by inductance — the acknowledged method of securing equal efficiency at all wave lengths over the entire wave band. Walbert as usual has made this method entirely practical by sound and simple engineering. This revolutionary feature comes at a time when most manufacturers are inclined to rest on their oars, with the result that receivers are more alike than they have ever been. Walbert 77 is therefore certain to be one of the outstanding receivers of the season. Walbert 77 will be moderately priced. It will be on display in Booth B-49, and on demonstration during all Trade Show hours in Room 553-A, Stevens Hotel. If you attend the show, by all means see it. If not, write us. WALBERT MANUFACTURING CO., 1000 Fullerton Ave., Chicago 'Walbert Radio At the R.M.A. Show — Display Booth B-49 » Demonstration Room 553-A, Stevens Hotel