I was 8/9 years old when I first saw Test Card F on the the sets displayed in Television Shops. It looked so good after monochrome. Then I got my first Colour TV a Pye CT203 in 1975, it was dead, blown fuse and S/C L.T. bridge rectifier. Also the thermal fuse in the low voltage transformer had tripped, quick re-solder job done. Then to the Patchett book to see haw this all worked. First Test Card F and then learning the difference between Static and Dynamic covergance and the interaction between them. Eventually moving on to decoding colour.
So 1977 built the Manor Supplies Colour Bar Generator which certaily helped when the test cards were not present. I did not like Test Card G at all. On Testcard F in the yellow table cloth and the green dolls outfit you could see decoder phase errors with ease. You could not do that as well on Test Card G. It had “demod” colours but you try in those days to find that explained anywhere? Test Card F for me every time. It just looks so good and easier to get the saturation correct on the skin colour. If you did a good job then all the sets looked identical whilst displaying this. It got even better later when they added more modern pop music to the mix (remember the days in the old school yard). Please put on the tape for the younger engineers I used to think.
In 1980/81 I joined the BBC and worked in Telecine. Got to see the Rank Cintel Side Scanner that was producing this. There was a blemish on one of the upper right gray squares that I noticed when servicing sets in Preston. And there before me on the scanner it was present and on the actual slide. For information the slide was scanned by a CRT and picked up on Red, Green and Blue photo multiplyers. They always used to complain about the cost of maintaining this slide scanner, not that it needed to much work but the scanning CRT would need replacement every so often, a lot of money, tubes were made by Brimar.
How can people resist commenting on this!
I was 8/9 years old when I first saw Test Card F on the the sets displayed in Television Shops. It looked so good after monochrome. Then I got my first Colour TV a Pye CT203 in 1975, it was dead, blown fuse and S/C L.T. bridge rectifier. Also the thermal fuse in the low voltage transformer had tripped, quick re-solder job done. Then to the Patchett book to see haw this all worked. First Test Card F and then learning the difference between Static and Dynamic covergance and the interaction between them. Eventually moving on to decoding colour.
So 1977 built the Manor Supplies Colour Bar Generator which certaily helped when the test cards were not present. I did not like Test Card G at all. On Testcard F in the yellow table cloth and the green dolls outfit you could see decoder phase errors with ease. You could not do that as well on Test Card G. It had “demod” colours but you try in those days to find that explained anywhere? Test Card F for me every time. It just looks so good and easier to get the saturation correct on the skin colour. If you did a good job then all the sets looked identical whilst displaying this. It got even better later when they added more modern pop music to the mix (remember the days in the old school yard). Please put on the tape for the younger engineers I used to think.
In 1980/81 I joined the BBC and worked in Telecine. Got to see the Rank Cintel Side Scanner that was producing this. There was a blemish on one of the upper right gray squares that I noticed when servicing sets in Preston. And there before me on the scanner it was present and on the actual slide. For information the slide was scanned by a CRT and picked up on Red, Green and Blue photo multiplyers. They always used to complain about the cost of maintaining this slide scanner, not that it needed to much work but the scanning CRT would need replacement every so often, a lot of money, tubes were made by Brimar.