26-01-2019, 12:57 PM
Frank en Jeffrey,
Would it be possible to "convert" the Hedghog to a standardsconverter for 625 to 567 lines?
The 567 line system basically is the same as the 625 line system, only having fewer lines.
Test patterns would not be required, and (at least in theory) the aspect ratio is 3:4.
Two frequencies have been in use during the 567 line period; both have a 4.5 MHz vision-sound distance and (as 625) FM sound and negative video modulation.
Baseband 625 --> 567 would be great already, since modulators are not the biggest problem.
I have 3 (restored) experimental Philips sets for the 567 line standard, and 2 home build ones (not yet restored).
I now have them working at 625 lines, but it would be fantastic to have them in their original state, i.e. 567 lines !
Jac
Would it be possible to "convert" the Hedghog to a standardsconverter for 625 to 567 lines?
The 567 line system basically is the same as the 625 line system, only having fewer lines.
Test patterns would not be required, and (at least in theory) the aspect ratio is 3:4.
Two frequencies have been in use during the 567 line period; both have a 4.5 MHz vision-sound distance and (as 625) FM sound and negative video modulation.
Baseband 625 --> 567 would be great already, since modulators are not the biggest problem.
I have 3 (restored) experimental Philips sets for the 567 line standard, and 2 home build ones (not yet restored).
I now have them working at 625 lines, but it would be fantastic to have them in their original state, i.e. 567 lines !
Jac
