pdf 08jul American Telephone Journal - Telephony In Hotel Astor (NYC) Popular

Published on 10 November 2011 By Anonymous 1588 downloads

Six position, common battery, bridging multiple type board in three sections. 60 trunk lines and 700 subscriber lines (capacity of 1200 lines). Chief operator's desk, wire chief's desk and ifnormation clerk's desk. Scan also includes an added short article on "Purification of Telephone Transmitters" describing a test in the UK demonstrating that tuberculosis can be transmitted by telephone mouthpieces. Contributed by Steve Cichorsky.