Project Whirlwind. Volume 15. Crystals, Flip-Flop Circuits and AC Coupling

Abstract

The high back-voltage germanium-crystal rectifier possesses many advantages over the vacuum-tube diodes. It has a much lower forward resistance and has a current-voltage characteristic which passes through the origin. In addition, it is small, requiring little space, no heater power, and having very small interelectrode capacitance. Its disadvantage is that it has a back conductance which frequently cannot be neglected and which increases with temperatures. Crystals are used in whirlwind I for clamping (d-c restoration), for isolation in coupling trigger sources to flip-flops, for mixing signals in a common load, in high-speed multi-position switches, and in pulse-generating circuits.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1947
Accession Number
AD0896855

Entities

Organizations

  • Massachusetts Institute of Technology

Tags

Communities of Interest

  • Cyber
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Cathode Followers
  • Circuits
  • Crystal Rectifiers
  • Electron Tubes
  • Engineering
  • Flip Flop Circuits
  • Frequency
  • Impedance
  • Life Tests
  • Measurement
  • Power Supplies
  • Pulse Generators
  • Resistance
  • Standards
  • Switches
  • Switching

Readers

  • Computer Engineering
  • Electrical Engineering
  • Electronics Engineering

Technology Areas

  • Space
  • Space - Hall-Effect Thruster