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{{Instrument Sidebar | |||
|manufacturer=Tektronix | |||
|model=4501 | |||
|class=Scan converter | |||
|series= | |||
|summary=Scan converter | |||
|image=Tek 4501.jpg | |||
|caption=Tektronix 4501 | |||
|introduced=1969 | |||
|discontinued=(?) | |||
|designers= | |||
|manuals= | |||
* ''please add'' [[Category:Manual needed]] | |||
* [[Media:4501 pages from 1969 catalog.pdf|4501 pages from 1969 catalog]] (OCR PDF) | |||
}} | |||
The '''Tektronix 4501''' is a scan converter, an analog memory device with readout in the form of a composite TV signal. The '''R4501''' is the rack-mount version. | |||
It contains a Tek-produced 5" bistable storage tube. Effective resolution is 125×100. | |||
The 4501 has a differential X/Y and intensity (Z) inputs and can produce either 525-line/60 Hz or 625-line/50 Hz video (monochrome). | |||
The 4501 was designed in [[Chuck Gibson]]'s group, which was a small group exploring new products using Tek technologies, principally CRTs. | |||
[[George Edens]], Chuck Gibson plus one or two others in the group worked on the design. | |||
[[Dan Denham]] may have helped, but he was new to the group at the time and did not do any significant engineering design on the 4501. | |||
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]]. | |||
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. | |||
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. | |||
The 4501 could be placed on a desk, or rack mounted. | |||
The 6 inch Anderson storage tube was used. It was a ceramic envelope, flat glass faceplate CRT manufactured by Tek. | |||
{{MissingSpecs}} | |||
==Pictures== | |||
<gallery> | <gallery> | ||
Tek 4501.jpg | Tek 4501.jpg | ||
</gallery> | </gallery> | ||
[[Category:Scan converter based instruments]] |