(!!) 5Z3G Sylvania Italy NOS 1960's (54/40 and 55/40)
(!!) 5Z3G Westinghouse NOS 1957 (59/40 and 61/40)
(!!) AZ1 Miniwatt Dario France NOS 1954-1955 (1 in stock)
(!!) EZ35=6X5GT Mullard UK used/tests like new 1950-1955 small crack in base (52/40 and 57/40)
(!!) JAN-5Z3G RCA NOS tilted glass (56/40 and 56/40)
(!) (Best Single) 5Z3G Hytron NOS 1947 (51/40 and 51/40)
(!) (Best Single) 6ZY5G GE NOS 1951 (55/40 and 56/40)
(!) (Best Single) 6ZY5G Raytheon NOS 1940's (53/40 and 54/40)
(!) (Best Value) 5Z3G RCA Victor NOS 1940's (48/40 and 49/40)
(!) (Good Value Single) GZ34=5AR4 Mullard branded Siemens used/good 1972 vertical scrapes on base (56/40 and 56/40)
(!) (Good Value Single) GZ34=5AR4 Philips Mullard used/good 1973 (58/40 and 60/40)
(!) (Good Value Single) GZ34=5AR4 Philips Mullard used/good 1975 (56/40 and 56/40)
(!) (Recommended Single) 5Z3G FAA RCA NOS 1962 (56/40 and 56/40)
(!) 3B28 RCA tests like new some scratches on base 1955 (1 in stock)
(!) 5R4GY RCA brown base NOS 1959 (48/40 and 54/40)
(!) 6X4 Philco by Sylvania NOS 1961 (51/40 and 52/40)
(!) JAN-6X4WA Sylvania used/good 1967 (48/40 and 50/40)
(!) JAN-CAHG-5R4WGY Chatham by Tungsol used/good 1952 (46/40 and 51/40)
(!) JAN-CAHG-5R4WGY Chatham by Tungsol used/good 1952 (50/40 and 56/40)
(!) JHS-6X4W Sylvania NOS 1961 (54/40 and 55/40)