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Old 04-09-2014, 03:47 PM
Ralph S Ralph S is offline
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Join Date: Jan 2008
Posts: 153
Tom, shooting comp video into this set is a bit harder than you might think given that the sound and sync have a separate detector from video and chroma which are also split ahead of the first luma video stage. Take a look at the attached portion of the schematic and you'll see what I mean. Also, pay attention to the fact that both negative and positive sync are sent to the vertical integrator and horizontal osc.
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File Type: jpg Heathkit GR-53A IFs detectors 1st video VK.jpg (85.8 KB, 24 views)
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