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4501: Difference between revisions
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|introduced=1969 | |introduced=1969 | ||
|discontinued=(?) | |discontinued=(?) | ||
|designers=George Edens | |designers=George Edens, Chuck Gibson | ||
|manuals= | |manuals= | ||
* [[Media:070-0943-00.pdf |Tektronix 4501 Manual]] | * [[Media:070-0943-00.pdf |Tektronix 4501 Manual]] | ||
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The goal of the 4501 was to use the Tek bistable storage CRT as a memory device from which an image could be displayed on a much larger CRT display for group viewing. | The goal of the 4501 was to use the Tek bistable storage CRT as a memory device from which an image could be displayed on a much larger CRT display for group viewing. | ||
The 4501 was a scan converter using the same CRT as the [[601]]. | The 4501 was a scan converter using the same CRT as the [[601]]. | ||
Once an image was stored on the CRT phosphors, the electron beam energy was lowered and the screen was scanned at NTSC rates and specs. | Once an image was stored on the CRT phosphors, the electron beam energy was lowered and the screen was scanned at NTSC rates and specs. | ||
The signal was obtained from the CRT screen, then sent to a monochrome display. | The signal was obtained from the CRT screen, then sent to a monochrome display. | ||
Any image such as graphs could be stored and displayed. | Any image such as graphs could be stored and displayed. | ||
There was no gray scale capability; it was all black and white on a TV type screen. | There was no gray scale capability; it was all black and white on a TV type screen. | ||