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> Dumont cathode-ray oscillograph type 274-a
Dumont cathode-ray oscillograph type 274-a
dumont cathode-ray oscillograph type 274-a in unworking condition. paint is flaking off cabinet. very clean and straight-forward circuitry that has (5) tubes, not counting cathode ray tube. (2) 6ac7 tubes which test great, (1) 884 which shows a short, (2) 80 which i am unable to test on my tube tester. cathode ray tube neck lights up, probably filiament voltage, but no trace on screen. power transformer might be bad. no manual or probes. 19x14x8 1/2 and weighs 32.8#.
