Monochrome Monitor 5151

IBM; Armonk, N.Y.

  • Year
  • 1981
  • Category
  • Signal Processing and Computing
  • Radiomuseum.org ID
  • 349321

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

 Technical Specifications

  • Number of Tubes
  • 1
  • Valves / Tubes
  • Number of Transistors
  • 7
  • Wave bands
  • - without
  • Power type and voltage
  • Alternating Current supply (AC) / 120 or 220-240 Volt
  • Loudspeaker
  • - - No sound reproduction output.
  • Material
  • Plastics (no bakelite or catalin)
  • from Radiomuseum.org
  • Model: Monochrome Monitor 5151 - IBM; Armonk, N.Y.
  • Dimensions (WHD)
  • 380 x 280 x 350 mm / 15 x 11 x 13.8 inch
  • Notes
  • Wikipedia:
    The IBM 5151 is a 12" transistor–transistor logic (TTL) monochrome monitor, shipped with the original IBM Personal Computer for use with the IBM Monochrome Display Adapter.

    The monitor has an 11.5-inch wide CRT (measured diagonally) with 90 degree deflection, etched to reduce glare, with a resolution of 350 horizontal lines and a 50 Hz refresh rate. It uses TTL digital inputs through a 9-pin D-shell connector, being able to display at least three brightness levels, according to the different pin 6 and 7 signals. It is also plugged into the female AC port on the IBM PC power supply, and thus did not have a power switch of its own.

    The IBM 5151 uses the P39 phosphor type, producing a bright green monochrome image intended for displaying high-resolution text. This phosphor has high persistence, which decreases display flicker but causes smearing when the image changes.

  • Net weight (2.2 lb = 1 kg)
  • 7.590 kg / 16 lb 11.5 oz (16.718 lb)
  • Literature/Schematics (1)
  • - - Manufacturers Literature (IBM PC Hardware Reference Library)
  • Author
  • Model page created by Heribert Jung. See "Data change" for further contributors.

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