File:TV Typewriter Kit 1.jpg

From Wikimedia Commons, the free media repository
Jump to navigation Jump to search

TV_Typewriter_Kit_1.jpg ‎(640 × 480 pixels, file size: 166 KB, MIME type: image/jpeg)

Captions

Captions

Add a one-line explanation of what this file represents

Summary[edit]

Description The TV Typewriter was video terminal that could display 16 lines of 32 upper case characters on a standard television. Designed by Don Lancaster, it was published in the September 1973 issue of Radio-Electronics magazine. Thousands were built, this one by Bob Rethemeyer. The bare circuit boards could be ordered but Bob fabricated his own boards.
The lower board is the mainframe with the power supply and RF modulator. Above that is the cursor board. The cursor keeps track of where the next character goes. The middle board has 512 six-bit words of screen memory. The top board generates all of the timing signals. These boards could be stacked in any order. The control switches are in the background.
Date
Source The photo was made by Bob Rethemeyer in November 2004 for an article on www.swtpc.com. The article and photos may be reused for any purpose without restrictions. The TVT photographs are in the public domain. [1]
Author Bob Rethemeyer
Permission
(Reusing this file)
This file, which was originally posted to http://www.swtpc.com/mholley/TV_Typewriter/Rethemeyer.htm, was reviewed on 5 January 2012 by reviewer Magog the Ogre, who confirmed that it was available there under the stated license on that date.
Public domain This work has been released into the public domain by its author, Bob Rethemeyer. This applies worldwide.
In some countries this may not be legally possible; if so:
Bob Rethemeyer grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

This photograph (and an accompanying article) was created by Rob Rethemeyer for the www.swtpc.com website in December 2004 at the request of the site owner, Michael Holley User:Swtpc6800. The site allows reuse of small amounts of its content for personal or commercial use without any additional permission. In February 2008, after consultation with Rob Rethemeyer, the article was updated with this notice: "Photographs by Bob Rethemeyer, November 2004. Released as public domain, February 2, 2008. Reuse of the photos for any purpose is allowed and encouraged."
Other versions File:TV Typewriter Kit 2.jpg

Licensing[edit]

Public domain This work has been released into the public domain by its author, Bob Rethemeyer. This applies worldwide.
In some countries this may not be legally possible; if so:
Bob Rethemeyer grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current22:16, 30 December 2011Thumbnail for version as of 22:16, 30 December 2011640 × 480 (166 KB)Swtpc6800 (talk | contribs)== {{int:filedesc}} == {{Information |Description= The TV Typewriter was video terminal that could display 16 lines of 32 upper case characters on a standard television. Designed by Don Lancaster, it was published in the September

You cannot overwrite this file.

There are no pages that use this file.

File usage on other wikis

The following other wikis use this file:

Metadata

This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.

Retrieved from "https://commons.wikimedia.org/w/index.php?title=File:TV_Typewriter_Kit_1.jpg&oldid=568196071"