Traveling Wave Oscilloscope 2236

Edgerton, Germeshausen, and Grier, Inc. (EG&G); Boston MA

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  • Year
  • 1957
  • Category
  • Service- or Lab Equipment
  • Radiomuseum.org ID
  • 208043

Click on the schematic thumbnail to request the schematic as a free document.

 Technical Specifications

  • Number of Tubes
  • 11
  • Wave bands
  • - without
  • Power type and voltage
  • Alternating Current supply (AC) / 115 Volt
  • Loudspeaker
  • - - No sound reproduction output.
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Traveling Wave Oscilloscope 2236 - Edgerton, Germeshausen, and
  • Shape
  • Boatanchor (heavy military or commercial set >20 kg).
  • Dimensions (WHD)
  • 16 x 12 x 32 inch / 406 x 305 x 813 mm
  • Notes
  • The EG&G Type 2236 Traveling Wave Oscilloscope is designed to display transient and repetitive phenomena in the millimicrosecond region. Sensitivity is unusually high, permitting these millimicrosecond observations at relatively low signal voltages without the need for external amplifiers. Frequencies as high as 3000 megacycles and voltage levels of 40 or 50 millivolts can be recorded. Sensitivity is achieved in the oscilloscope by the use of the new (new in 1957) EG&G cathode ray tube, type 3341A/KR-3 (see details in tube listing). The oscilloscope has seven switch-selectable sweep positions: 5000, 1500, 500, 150, 50, 20-30 and "open" approximate millimicroseconds sweep times. Although the total size of the display is considerably larger, the useful area of 0.4 inch vertically and 0.6 inch horizontally contains more useful information than is normally contained on a standard 5 inch CRT. Provision is made to reduce the post-acceleration voltage (from 20kv to 10kv) which changes the electron optical magnification and enlarges the display on the screen for easy visual observation. The high frequency response of the oscilloscope has been achieved by means of a traveling wave type deflection system. In typical condenser-plate deflection systems, the frequency response is limited by the transit time of the beam electrons through the plates. This difficulty is overcome in the Type 2236 oscilloscope by propagating the signal pulse along a helix which lies parallel with the beam axis. The helix pitch is adjusted to make the signal propagation speed down the tube match the beam velocity.
  • Net weight (2.2 lb = 1 kg)
  • 94.5 lb (94 lb 8 oz) / 42.903 kg
  • Author
  • Model page created by Hank Kaczmarski. See "Data change" for further contributors.

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