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5Y4G Philco by Sylvania NOS 1943 (54/40 and 57/40)
(5Y4G/GT=5Y3GT with pin-out scrambled)
- Zenith 5S-250 1938- Zenith 10S669 1942- Philco 38-4 radio 1938- Philco 37-650 1937- Philco 38-62 1938