Very useful. Let me have a rummage and see if I can find any of the 3 units mentioned.
I agree the LM1881 ads nothing here, indeed already tried it
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On 14/01/2025 05:54, Clark Foley via groups.io wrote:
The original posting refers to the signal as RGBHV. All five components are already separated. As much as I like the LM1881, there is no need for it (i.e. sync separator) in this application.
To trigger on sync event number 270 or any other event, I recommend triggering the timebase after Delay-by-Events. If you can borrow a 7D10 or 7D11, you can either run after or trigger after the 270th event is counted. The DD501 can also provide the event delay function.
You might be able to use a standard delaying timebase, but the delay jitter might make it difficult to select the event to trigger the delayed timebase.
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Christopher Hilton-Johnson
The Stone Barn
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Oxfordshire
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