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Old 07-13-2015, 10:01 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 Phil Nelson View Post
On other sets, I have bypassed the tuner/IF and injected video and audio directly, but injection is not such a simple matter in a CTC-4, if I understood Pete's earlier remarks correctly.
Phil, the original 1956 RCA construction article for composite video inputs also included two circuits for the CTC4. The second might be the more useful as the other requires a 75-ohm composite signal. The second can be driven by typical consumer equipment composite video outputs, the yellow RCA connectors. The link (notice there are more inductors and caps in this-made-for-the-CTC4 design to develop the requisite curves):

http://antiqueradio.org/art/BROADCAST_NEWS_0656_4.jpg

Pete

Last edited by Pete Deksnis; 07-13-2015 at 10:09 PM.
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