Videokarma.org

Go Back   Videokarma.org TV - Video - Vintage Television & Radio Forums > Television Broadcast Gear

We appreciate your help

in keeping this site going.
Reply
 
Thread Tools Display Modes
  #1  
Old 11-02-2009, 10:18 AM
John Hafer John Hafer is offline
VideoKarma Member
 
Join Date: Jan 2008
Location: Minnesota USA
Posts: 55
RCA TP-15 Multiplexer vs TP-11

Does anyone have any knowledge on the old RCA film chain mutiplexers TP-15 and TP-11 used in television broadcast stations?

What I am trying to find out is if the TP-11 had fixed mirrors to direct the projector images into the film camera, or of they were motorized like in the TP-15 which could select which projector image was directed into the film camera.

If they were fixed, then how would one select which projector was selected, or was it from simply turning on and off the projector lamp?
Reply With Quote
  #2  
Old 11-02-2009, 11:01 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: 4,317
According to the 1957 catalog, the TP11-B used two beam splitting cubes, one 40% reflecting/60% transmitting, the other 30%R/70%T, for film and slides. It also had a moving mirror for opaques, operated manually or by solenoid.
Reply With Quote
Reply


Thread Tools
Display Modes

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 12:06 PM.



Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
ęCopyright 2012 VideoKarma.org, All rights reserved.