Accession Number : AD0692804

Title :   A TRANSISTORIZED WARNING SIGNAL GENERATOR FOR USE WITH AN /AIC-10 INTERCOMMUNICATION SET.

Descriptive Note : Final engineering rept. on task 5,

Corporate Author : BALDWIN PIANO CO CINCINNATI OHIO

Personal Author(s) : Broerman,Kenneth E.

Report Date : OCT 1957

Pagination or Media Count : 26

Abstract : A variety of transistor circuit alternatives for warning signals was developed. The output signals from these circuits were demonstrated. Their relative interference to mental concentration was evaluated in the contractor's laboratories by psychoacoustic test. This report is concerned chiefly with the design and performance of the particular circuit chosen for the preliminary design model. The report also contains the other circuits developed and demonstrated, and an appendix on the evaluation of the various signals. (Author)

Descriptors :   (*INTERCOMMUNICATION SYSTEMS, WARNING SYSTEMS), (*WARNING SYSTEMS, *SOUND GENERATORS), AIRBORNE, TRANSISTORS, PSYCHOACOUSTICS, EARPHONES, CIRCUITS, HUMAN FACTORS ENGINEERING, AUDITORY SIGNALS

Subject Categories : Safety Engineering
      Acoustics
      Human Factors Engineering & Man Machine System
      Non-radio Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE