Videokarma.org

Go Back   Videokarma.org TV - Video - Vintage Television & Radio Forums > Early Color Television

We appreciate your help

in keeping this site going.
Reply
 
Thread Tools Display Modes
  #31  
Old 11-14-2009, 12:01 PM
Pete Deksnis's Avatar
Pete Deksnis Pete Deksnis is offline
15GP22 demo @ ETF 2007
 
Join Date: Jan 2005
Location: Big Rapids, MI
Posts: 761
Quote:
Originally Posted by John Folsom View Post
Here is is my Vidimagic projecting a 4'X3' image on a white wall. On a screen with some gain, it would be quite watchable in a dim room. Considering it is a beam index CRT, for the 1980s a pretty cool technology. BTW, fuzzy image are my bad.
Those pictures are looking great on my end of the link.
Reply With Quote
  #32  
Old 11-14-2009, 01:13 PM
John Folsom's Avatar
John Folsom John Folsom is offline
VideoKarma Member
 
Join Date: May 2004
Location: Melbourne Florida
Posts: 932
Jr,

Here is a photo of the 5" CRT used in the beam index projector. Can't recall what the HV is, not shown on the schematic.
Attached Images
File Type: jpg VIDIMAGIC CRT.jpg (46.5 KB, 55 views)
__________________
John Folsom
Reply With Quote
  #33  
Old 11-14-2009, 01:49 PM
jr_tech's Avatar
jr_tech jr_tech is offline
VideoKarma Member
 
Join Date: Sep 2009
Posts: 4,515
John,

THANKS! The funny thing is that I am now starting to collect items that were MADE after I stopped collecting the first time round in this hobby. I found the flat-tube Sony "Watchman" sets to be interesting... I believe that that was the only commercially successful application of a flat tube design. It seems that Sony did it again with beam-index technology.

Did Philco ever sell any "apple-tube" sets ?

jr
Reply With Quote
  #34  
Old 11-14-2009, 05:17 PM
David Roper's Avatar
David Roper David Roper is offline
console lover
 
Join Date: Feb 2005
Posts: 1,986
Philco didn't sell those Apple prototypes, but they make doubly sure to destroy them all.
Reply With Quote
  #35  
Old 11-14-2009, 08:32 PM
old_tv_nut's Avatar
old_tv_nut old_tv_nut is offline
See yourself on Color TV!
 
Join Date: Jul 2004
Location: Rancho Sahuarita
Posts: 7,201
Quote:
Originally Posted by Pete Deksnis View Post
Those pictures are looking great on my end of the link.
If I recall correctly, the stripe pattern on this beast is pretty coarse, so I expect you could see them if the shots were in better focus. Is that so, John?
Reply With Quote
Audiokarma
  #36  
Old 11-14-2009, 11:37 PM
John Folsom's Avatar
John Folsom John Folsom is offline
VideoKarma Member
 
Join Date: May 2004
Location: Melbourne Florida
Posts: 932
Aye, old_tv_nut, that is so. The horizontal stripe pitch on the vidimagic, the KVX 370 and the beam index viewfinders are all pretty coarse. I suspect this was one of the limiting factors which did not allow the beam index technology to triumph.
__________________
John Folsom
Reply With Quote
  #37  
Old 11-15-2009, 07:23 PM
zenith2134's Avatar
zenith2134 zenith2134 is offline
VideoKarma Member
 
Join Date: Feb 2005
Location: NYC
Posts: 2,539
Hi
Just wanted to let you'll know how much I am enjoying this thread. Great stories. My stories are no match. The best set I ever passed up was nothing special by these standards, a Setchel-Carlson modular b/w set at a yardsale, the man wanted too much $ for it and it was in really bad shape...Yes I still regret it though.
Reply With Quote
Reply



Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 06:58 PM.



Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
©Copyright 2012 VideoKarma.org, All rights reserved.