TM 11-2522: Sound Recording Sets AN/UNQ-1 and AN/UNQ-1A

TM 11-2522 Sound Recording Sets AN/UNQ-1 and AN/UNQ-1A

TM 11-2522

Sound Recording Sets AN/UNQ-1 and AN/UNQ-1A

Army · TM · Aug 1946 · 143 pages

About

Section I. DESCRIPTION OF SOUND RECORDING SETS AN/UNQ-1 AND AN/UNQ-1A 1. General Sound Recording Sets AN/UNQ-1 and AN/UNQ-1A are compact, self-contained, sound recording and playback machines operating on 110-volt, 50-60 cycles, alternating current. The sets are fur nished with valise-like cases making portable use convenient. Re cording is made on 35-millimeter noninflammable cellulose-acetate film. The recording may be played back immediately. At nor mal operating speed, continuous recording is possible for about 1a/2 hours. 2. Application a. RECORDING SOUND. The sound recording sets will record sound within a frequency range of 150 to 4,000 cycles (approxi mate) when they are operated at a 60-foot-per-minute (fpm) film speed. The frequency response is within a narrower range when the sets are operated at a 40 fpm film speed.

DesignationTM 11-2522

EditionAug 1946

StatusSuperseded

Pages143

FunctionComms Signal

CollectionHistoric

Public domain (U.S. Government work)

References 12

TM 11-472Not in the Vault
TM 11-2627Not in the Vault
TM 3-220Not in the Vault
TM 1-455Not in the Vault
TM 11-453Not in the Vault
TM 11-462Not in the Vault