DEVELOPMENT OF TELEGRAPH TERMINAL TH-22( ) /TG

Abstract

Work on the TH-22( )/TG progressed from the circuit-design phase (phase 2) to the testing phase. Design of the break-in circuitry, based on use of a low-pass filter as the discriminating element, was completed. Transmitter and receiver sections were designed, breadboarded, and temperature tested. The threshold circuit was modified to increase stability. Design of carrier-suppression circuitry (based on diode gated logic) was completed, and an electronic circuit (to replace the mechanical buzzer, as requested by the Signal Corps) was developed. The chassis and the printed-circuit card assembly were designed and are in the process of being fabricated. Completed circuitry, subjected to various tests proved satisfactory. (Author)

Document Details

Document Type
Technical Report
Publication Date
Aug 31, 1961
Accession Number
AD0268693

Entities

People

  • R. Couturier

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Assembly
  • Circuits
  • Electrical Circuits
  • Electrical Equipment
  • Electronic Circuits
  • Filters
  • Low Pass Filters
  • Printed Circuits
  • Terminals
  • Transmitters

Readers

  • Aerospace Test and Evaluation
  • Integrated Circuit Design and Technology.
  • Software Engineering

Technology Areas

  • Microelectronics
  • Microelectronics - Microelectromechanical Systems