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EBC33 Mullard branded Philips Miniwatt NOS 1950 (1 in stock)
EBF11 Ultron Germany NOS original Ultron boxes
EBF2 Philips Miniwatt used 1940's
EBF89=6DC8 Valvo Holland used/good 1956 (7.5ma)
EC81 Philips Holland Gold Pins NOS 1966 (28ma)
EC88 Siemens Germany gold pins NOS 1965 (14ma)
EC88 Telefunken Germany NOS 1964 (16ma)
EC88=6DL4 United France NOS 1981-1982 (2 single tubes)
EC88=6DL4 United France NOS/70-75% (1 pair)
EC88=6DL4 Valvo branded Amperex Germany NOS 1972 (11.5ma)
ECC34 Mullard NOS 1950's (9ma/10ma)
ECC82=12AU7 Siemens Halske "Long Ribbed Plates" and "O" getter NOS 1958 (10.4/11.8ma)
ECC83=12AX7 Mullard UK BVA long plates "O" getter like new 1958 (f91 series) (1.2/1.2ma)
ECC99 JJ (best identical substitute is 12BH7A RCA, Raytheon, Sylvania and GE)
ECH81=6AJ8 Tungsram Hungary branded Telefunken tests like new 1970's (6.5ma and 10.6ma) (strong Gm)
ECH81=6AJ8 Valvo Germany like new 1960 (6.3ma and 10.6ma)
EF11 RSD Germany NOS 1950's (6.1ma) (tested on Amplitrex)
EF11 Telefunken Germany used/very good 1949 (5.6ma) (tested on Amplitrex)
EF40 Mullard France NOS 1961 (3.7ma)
EF40 Philips France NOS 1966 (2 in stock)
