Section I. DESCRIPTION OF TIMING AND TELEPHONE SET ML-110 1. General a. Timing and Telephone Set ML-110 consists of Time Interval Unit ML-138 and associated equipment. The timing and tele phone set is designed as an aid in making theodolite observations of pilot balloons. It provides two services : telephonic communi cation between a plotting station and one or two theodolite ob servers, and superimposed timing signals on the telephone com munication line to aid the observer in making periodic observa tions of balloon positions. Note. All timing and telephone sets procured in the ML-110 or ML-210 series have been converted so that all have like components. The sets for merly designated as Timing and Telephone Sets ML-110-A, B, C, ML-210-A, and B varied in that sets were supplied with different types of wire or cable . or in that none were furnished.
DesignationTM 11-334
EditionJun 1946
StatusSuperseded
Pages75
FunctionComms Signal
CollectionHistoric
Public domain (U.S. Government work)