12V6GT Sylvania chrome top NOS 1957 (58ma)
12V6GT Sylvania used/good 1960's (38.6ma)
12V6GT Tungsol branded Raytheon NOS 1960's (62.5ma)
12W6GT used/good (5 in stock)
1602=10 Special (sold out)
1608 RCA white ceramic base NOS in white box 1940 era (32.5ma)
1613=VT-175=6F6 RCA NOS 1963 (42ma)
1614 RCA used/very good 1961 surface oxidation / rust on metal can (67ma)
1619 GE NOS 1960 (56ma)
1619 Ken Rad NOS 1940's also stamped 1953 (56ma)
1621=6F6 selected for long life RCA NOS
1622 RCA NOS 1947 some rust on can (67.5ma)
1622 RCA NOS 1948 (71ma)
1622 RCA used/good 1940's (59.5ma)
1624 RCA used/good (3 in stock)
1625 National Union like new 1940's no printing in white box (72/40)
1625 National Union like new 1940's no printing in white box (85/40)
1625=VT-136 National Union used/good mid-1940's (69/40)
1625=VT-136 RCA NOS 1954 (84/40)
1630 RCA NOS original box (SCR-270 radar)