Quote:
Originally Posted by Jeffhs
The set may have other problems, even though it has a full, bright raster (it obviously is not connected to a converter box). That's one thing I don't like about the digital TV transition -- it is nearly impossible to test old TVs these days simply using an antenna connected directly to the set unless your area has low-power or translator stations, or else you have analog cable TV service. Analog cable will work with an older TV up to channel 13, with the cable connected to the set's VHF antenna terminals through a 75-to-300-ohm matching transformer. This was done almost universally in cable's early years through about the '70s, when most cable systems only carried 12 broadcast channels (locals, if any, plus some out-of-town stations) and no movie channels.
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These explanations to basic TV principles are fascinating. I once ran into a case of having a two lead 300 ohm wire that needed to attach to a 75 ohm F connector on a newer TV set. Is there by chance an an adapter for this situation too?