5Y4G Philco by Sylvania NOS 1943 (54/40 and 57/40)

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