(!) (Recommended Pair) 41 GE Canada GT-shape glass NOS 1950 era (74-75/40)
41 Ken Rad NOS 1950 (70/40)
41 Triad engraved base used/strong 1930's (70/40)
41 US Brands used/good (4 for $19.99)
41 US Brands used/good (40 in stock)
41=VT-48 Hytron NOS 1940's (80/40)
41=VT-48 Tungsol NOS 1940's (80/40)
