Quote:
Originally Posted by Phil Nelson
Better quality TVs had three IF stages (like my Dumont RA-103), or even four (like my RCA CT-100). More IF stages means more amplification of the incoming signal, resulting in greater sensitivity (ability to pull in weak, far-away stations). A TV with only two IF stages would only have worked well in a metro area with nearby stations.
Sensitivity per se is not such a big deal nowadays, when many collectors feed their restored TVs from a DVD player or whatnot, with a nice strong signal. The number of IF stages can be interpreted as a sign of overall quality, however. If the manufacturer skimped in that area, they may have skimped in others, too.
Phil Nelson
Phil's Old Radios
http://antiqueradio.org/index.html |
Phil,
Thanks for the explanation. I can see where if they scrimped here they could scrimp there kind of a deal.
When I'm done I'll for sure include some videos of the picture and sound quality.
Again thanks and I enjoy reading over your restorations both radio and TV.
07-09-2016, 11:05 PM
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