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Television Standards Converters, Modulators etc Standards converters, modulators anything else for providing signals to vintage televisions. |
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9th Apr 2006, 2:05 pm | #21 | |
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Join Date: Jul 2005
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Re: Recording 405-line video on VHS
Hi,
Moderator: Maybe this should really go on the end of 405-Line TV from PC - First Pictures!? Quote:
As for the line frequency, the counter says 10.1279kHz, so only 3Hz off... though I've no idea when that counter was last calibrated - Mike would probably agree it's not exactly state-of-the-art I'm looking forward to NVCF and putting a few more faces to names Regards, Kat |
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9th Apr 2006, 3:05 pm | #22 | |
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Re: Recording 405-line video on VHS
Quote:
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9th Apr 2006, 4:52 pm | #23 |
Dekatron
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Re: 405-Line TV from PC - First Pictures!
Apologies for having to move the post, and inadvertently having speeded up Kat's poor ol' line timebase by a factor of 1000 as well.
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Mike. |
9th Apr 2006, 5:48 pm | #24 |
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Re: 405-Line TV from PC - First Pictures!
Be carefull, the V- sync confuses the counter.
Interesting thing: I have a modified Sony dual standard camera. It gererates its V- sync by divieding the (doubled) H frequency. The H oscillator is a free running RC oscillator. So the frequency changes a little bit. But after recording a vhs tape and playing it back, there is no frequency drift any more. The VCR makes sure that the playback v- frequency is locked to the mains or an XTAL, thus the H frequency is corrected too. How does your final schematic for the vision-sync combinner look like? Kind regards Darius |
11th Apr 2006, 10:26 am | #25 |
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Re: 405-Line TV from PC - First Pictures!
I have just had confirmation that we will have facilities to demonstrate Kat's PC converter at the NVCF. I also hope to bring the new Aurora converter.
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11th Apr 2006, 11:06 am | #26 |
Dekatron
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Re: 405-Line TV from PC - First Pictures!
Looks like I will have to attend the NVCF now...... - I look forward to seeing all of the Television displays....
Now, how to earn enough brownie points for three weekend passes on the trot?..... Cheers Sean
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Engineers make things work and have spare bits when finished |
11th Oct 2006, 6:42 pm | #27 |
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Re: 405-Line TV from PC - First Pictures!
Exellent work, that is deffinitely not an easy task to accomplish. I think all here are envious of your work, probably wish they had thought of it before. However, I was wondering on the subject of 405 line UK TV material, if you might have any such material from that era on 405 line videotape ? Or might know where I might locate some material privately ? I am doing some research for school, which this ties into. Any assistance from anyone would be appreciated. Also please look at my latest thread on the Television area about PAL Shibaden VTR's.
Cheers, Lance. |