I just recapped an old 12" Zenith B&W TV I had sitting around in the basement. (Why? Because I like to watch Doctor Who in the way it was meant to be viewed ;-) Besides, it's somewhat nostalgic since my parents didn't get a color set until 1981 - before that it was the old Motorola my Mom bought off the assembly line where she worked when they used to make TVs here in Chicago.)
Anyway, the picture is nice and sharp now. However, when I set it atop my Lasonic DVD player, I get diagonal interference lines in the picture. Is this typical? I don't know if TVs made before the 'age of DVD' didn't have adequate shielding because this sort of thing wasn't a problem back then or if something else is the problem. I'm not a EE some I'm hoping perchance someone know a thing or two about this.
FYI, I had to patch the DVD through an old Zenith VCR (80s vintage I bought from a pawn shop when at the Infantry school during the first Gulf War) because it does not have RCA inputs. So RCA plugs into the VCR and then antenna cable to the TV.
I did solder a largish .1 uF/250V class X suppression cap across the input AC line just because I had an extra and there was nothing of the sort there (even my 1979 Sony portable cassette/radio has these).
Anyway, the picture is nice and sharp now. However, when I set it atop my Lasonic DVD player, I get diagonal interference lines in the picture. Is this typical? I don't know if TVs made before the 'age of DVD' didn't have adequate shielding because this sort of thing wasn't a problem back then or if something else is the problem. I'm not a EE some I'm hoping perchance someone know a thing or two about this.
FYI, I had to patch the DVD through an old Zenith VCR (80s vintage I bought from a pawn shop when at the Infantry school during the first Gulf War) because it does not have RCA inputs. So RCA plugs into the VCR and then antenna cable to the TV.
I did solder a largish .1 uF/250V class X suppression cap across the input AC line just because I had an extra and there was nothing of the sort there (even my 1979 Sony portable cassette/radio has these).
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