6DQ6B Curtis Mathes hi-fi JAPAN used/good 1960's (60.5ma)
6DQ6B Raytheon JAPAN like new 1960's (60ma)
6DW4 Sylvania branded GE tipped top NOS (1 pair)
6DW4 Sylvania tipped top like new
6DW4B Raytheon Japan used/strong 1960's
6DW4B Westinghouse Japan like new 1960's
6DX8=ECL84 GE Hitachi JAPAN 1972 (5.1mA and 13mA) (Shindo)
6DX8=ECL84 GE Hitachi JAPAN 1978 (3.0mA and 14mA) (Shindo)
6DX8=ECL84 Motorola Toshiba JAPAN used/good 1960's (3.3mA and 12.5mA) (Shindo)
6EA8 Zenith GE like new 1960's
6EC4A=EY500 GE JAPAN NOS 1960's (1 pair)
6ER5 Sylvania NOS 1960's smeared printing high emission
6ER5=EC95 NOS (3 pairs in stock)
6ES5 Sylvania rebranded GE NOS
6ES6=6FD6 International NOS
6FQ7 Raytheon Japan branded Realistic Lifetime gold plated pins low hours/tests like new 1960's (6.4ma/6.6ma)
6FY5=EC97 International Servicemaster NOS made in JAPAN (3 pairs)
6FY5=EC97 NOS (6 tubes)
6GK5=6FQ5A Sylvania branded Raytheon NOS (11.4ma)
6GK5=6FQ5A Sylvania branded Raytheon NOS (12.5ma)