Few books from History of Television folder

Links to relevant web sites, copies of patent documents and newspaper and magazine articles. Feel free to post relevant items here. This forum is moderated and non-relevant postings will be deleted.

Moderators: Dave Moll, Andrew Davie, Steve Anderson

Few books from History of Television folder

Postby BruXy » Thu Oct 24, 2024 12:10 pm

Hi guys,

that folder is here:

https://schematicsforfree.com/files/Vid ... elevision/

Code: Select all
1981 Video Technology.jpg                          13-Jul-2023 01:11    936K
40 Years of TV by Hugo Gernsback.pdf               01-Nov-2022 12:52    138K
A Historical Look at Television (2).pdf            01-Nov-2022 12:52      2M
A Historical Look at Television.pdf                01-Nov-2022 12:52      2M
Ad For My First Vcr - Rca Vct200 In 1978.pdf       01-Nov-2022 12:52    123K
Captioning - The Inside Story.pdf                  01-Nov-2022 12:52    838K
From TVs Tender Years.pdf                          01-Nov-2022 12:52      1M
John Logie Baird & the early days of TV.pdf        19-Oct-2022 00:07      4M
Television 50th Anniversary Part 1 SC 2006-06.pdf  27-Sep-2022 03:31      2M
The Future of TV in the USA - 1949.pdf             01-Nov-2022 12:52    398K
Thirty Years of Canadian TV - 1982.pdf             01-Nov-2022 12:52      3M
Was Baird Fooling the Public.pdf                   01-Nov-2022 12:52     47K
Whatever Happened to TV Channel One.pdf            01-Nov-2022 12:52      2M


I went a bit around this site and there are also two interesting SSTV related articles:

This one has schematics for 8255 parallel interface card related to Weather Satellite Receiving System:
https://schematicsforfree.com/files/Rad ... 995-04.pdf

Extensive build plan for digital scan-convertor (Picture Phone) with some kind of 15sec SSTV mode:
https://schematicsforfree.com/files/Rad ... 201982.pdf
User avatar
BruXy
Laboratory Assistant
 
Posts: 27
Joined: Thu Jan 30, 2020 1:43 am
Location: Halifax, Nova Scotia

Re: Few books from History of Television folder

Postby Steve Anderson » Fri Oct 25, 2024 2:00 pm

The 'Picture Phone' item is interesting, but really needs updating. I'm tempted to have a go at it if others are also interested. These days chip count and power consumption could be noticeably reduced. The 15-second mode mentioed and is non-standard and would be replaced with selectable US/EU rates. 128-lines in 8.53 seconds (US, 60Hz/4), or 128-lines in 7.68 seconds (EU, 50Hz/3). This is a monochrome device as per the original article. Other 'features' could be added, suggestions welcome.

However camera selection is an important consideration in all this....or files could be loaded from a PC via USB, (probably better quality), and doesn't require the fast A-D that live FSTV 525/625 signals require.

Steve A.

Interesting to note that the prototype shown in the article looks very much like an early (maybe prototype version) of a Robot device. The 'looks' of it has the general 'feel' of a Robot unit, same font, knobs etc. Maybe that's what the author was trying to achieve?

If there's interest in this I'll start off a new thread in the SSTV section.

An 'addition' might be a switchable interface to an Amateur Transceiver and/or a phone line.
User avatar
Steve Anderson
"Fester! Don't do that to 'Thing'"
 
Posts: 5473
Joined: Fri Mar 30, 2007 10:54 pm
Location: Bangkok, Thailand


Return to Resources

Who is online

Users browsing this forum: No registered users and 1 guest

cron