Quote:
Originally Posted by egrand
Well, they invented them, they held the patents, they got the royalties on them. So, the more they used them, the more that were made, and the more money Philco got for either making them or licensing others to make them. And, that may have been a little less in royalties they didn't have to pay to RCA too.
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Did you ever notice that Philco , never used metal tubes or tuning eye tubes.
They were the last firm to switch to octal based tubes. When they did, the tube shield bases restricted the use of anything but the "G" types. How many Philco radios did you run across, that had the bases butchered to use a larger diameter replacement tube?
They were the only firm to use UX based tubes, as late as the 1942 model year, even in Military equipment.