Quote:
Originally Posted by W.B.
PE-250, PE-350 and PE-400 studio cameras; as well as by RCA (not as successfully, as described above) on their infamous TK-42 and TK-43 cameras. And of course, on the two American companies' respective film chain cameras (G.E. PE-24/240/245 and RCA TK-27).
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I'm surprised by the plurality of four tube designs