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Old 30th Dec 2020, 7:28 pm   #50
jhalphen
Pentode
 
Join Date: Jul 2004
Location: Paris, France
Posts: 218
Default Re: My 819 line French TV project

Hello to all,

Still on the topic of the French 819 E standard, here is a full description of a DIY VHF Band III modulator. It operates on a fixed frequency, Channel 8A which was used in Paris on the Eiffel Tower from 1949 to 1983 (end of service). Channel 8A was also used in Lille, northern France.

The design by engineer JC Jardine has been around for quite some time and has been used by many 819 enthusiasts.

http://819lignes.free.fr/Realisation...r_VHF_F8A.html

Vision carrier is 185.25 MHz
Audio carrier is 174.10MHz

I've built a pair. It works well but serious shielding is necessary as the RF output is quite powerful.

Best Regards
jhalphen
Paris/France
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