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(!!) 12AX7 GE branded Video black plates D getter 1957 used mis-matched triode sections (1.1ma/0.6ma)
(!!) 12AX7 Hitachi Japan branded Bell and Howell used/good 1962 (Gm=1500/1400)
(!!) 12AX7A Westinghouse pinched plates "D" getter used/good 1960 era no printing (Gm=1450/1650)
(!) (Best Value) 7025A=12AX7A China branded International Yugo NOS 1990's (1.0/0.9ma and Gm=1700/1600)
(!) (Good Value) 12AX7WXT Sovtek NOS 1990's (Gm=1500/1400 and 0.9/0.8ma)
(!) (slightly microphonic single) CV4004=12AX7 Mullard NOS 1981 (1.3/2.1ma)
(!) 12AX7A Amperex by RFT East Germany NOS 1970's (Gm=1300/1400)
** 9 pin ceramic pc mount socket with standard pins (0 in stock)
12AX7 Telefunken Germany
7729=12AX7 Raytheon Uniline Gold Pins (sold out)
9 pin ceramic chassis mount socket with gold-plated pins and mounting bracket (0 in stock)
9 pin ceramic pc mount socket with gold-plated pins (10 in stock)
9 pin ceramic pc mount socket with standard pins (13 in stock)
9 pin ceramic TOP chassis mount socket with mounting bracket (1 in stock)
ECC83=12AX7 East Germany used/good 1970's in white box (1.0/0.7ma)
ECC83=12AX7 Mullard UK BVA long plates "O" getter like new 1958 (f91 series) (1.2/1.2ma)
Mehmet Ocakoglu tube order #43643