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(!!!) (Best Pair) VT-174=3S4 Tungsol NOS 1943 (100/60 and 100/60)
(!) (BEST PAIR) 3S4 RCA NOS 1950's (98/60 and 95/60)
3S4 GE used/good 1960 era (99/60)
3S4 Philco and Raytheon NOS same build 1940's - 1951 (1 Pair)
3S4 RCA branded CBS NOS 1961 (98/60)
3S4 RCA Fordom used/good 1950's (100/60)
3S4 RCA NOS 1951 (100/60)
3S4 Tungsol NOS 1944 (101/60)
3S4 Tungsol NOS 1948 (102/60)
