ALL ITEMS: 'Wholesale-Radio-Laboratories


 Thumbnail CreatorDateTitle / Author / Date / LocationPrice  Description
5027Interesting mid-WWII (1943) radio reference map.DetailsWholesale Radio Laboratories1943
Radio Reference Map of the United States
Wholesale Radio Laboratories
1943
LOC:11111
$400.00Wholesale-Radio-LaboratoriesRadio-Reference-Map-of-the-United-StatesInteresting, large WWII-era (1943) map of monitoring stations and the territory of the nine radio call-sign zones that existed in the United States during that time. At bottom, the map is filled with four inset maps of the USA showing locations of broadcast stations for the chief networks of the period: The Blue Network, Mutual Broadcasting System, Columbia Broadcasting System (CBS), and National Broadcasting Company (NBC). Includes tables of radio-related data: List of Standard (AM) Broadcast Stations, World Leading Shortwave Stations, and Experimental Frequency Modulation (FM) Stations. <br><br> Published for Wholesale Radio Laboratories, by Omaha native Leo Meyerson (d. 2011) during WWII. Meyerson founded Wholesale Radio Laboratories in Council Bluffs, Iowa in 1935, later renamed 'World Radio Labs' after WWII, 'WRL Manufacturing' in 1953 and to 'Globe Electronics' in 1958 The company became one of the world's largest manufacturers and distributors of amateur radio equipment. <br><br> During WWII all amateur radio stations were forbidden to transmit, although shortwave listening was still permitted. After the war amateur radio broadcasts were permitted by the government. This probably explains why a slightly older post-war edition of this map from 1947, in the Rumsey Map Collection prominently features a photograph of Myerson in his very impressive radio 'shack' where the earlier edition does not. <br><br> Another interesting difference between the two editions is that here Meyerson's amateur call sign, or unique identifier, is W9GFQ, where in Rumsey's 1947 edition his call sign is W0GFQ. The system of amateur radio call districts in the United States originally started with nine districts. This changed to ten districts in 1947. The 10th call district, '0', was added to accommodate the increasing number of amateur radio operators in the Midwest, especially in the Chicago area.