Why no UHF converters with RF amp?

[dieseljeep]

Originally Posted by Steve McVoy

I was thinking about 50s UHF converters. I don't know of a single one that had a RF amplifier. Given the problems with UHF reception and the very poor noise figure of converters with no RF amps, why didn't at least one manufacturer make a premium model with an amp? They had the technology and it wouldn't have been terribly expensive.

I wonder about that big clunker of a converter, the RCA U70.
I have to look at the schematic. It's really a complicated beast.
Also, look at the tuner in the CT100. It's simular to the tuner in the all channel 1953 RCA, all channel sets. It sure is food for thought.