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(!!!!) (Recommended Pair) 12AX7 Telefunken Germany <> bottom ribbed plates used/very good 1960 era (1.0/1.2ma and 1.0/1.1ma) 1-5% matched (highest mA and Gm)
(!!!!) (Recommended Pair) 12AX7 Telefunken Germany <> bottom ribbed plates used/very good 1960 era (1.0/1.2ma and 1.0/1.1ma) 1-5% matched (highest mA and Gm)
$ 229.99
1 Low Noise pair) 12AX7=ECC83 Telefunken Germany <> bottom ribbed plates used very good 1960 era in white boxes
1 tube) Gm=1600/1700 (1.0/1.2ma) no printing
1 tube) Gm=1500-1600 (1.0/1.1ma) some printing "ECC83"
NOS mA = 1mA+
NOS Gm = 1600+
recommended for:
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Veloce Audio Line Stage and Phono Amp
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MFA preamp
Orange amps
Conrad Johnson Premier 15 phono preamp
Pilot SP-210 preamp
Jadis preamp
Aesthetix Rhea, Io, Calypso
George Wright phono
THD Plexi-50
MXL V69 Mogami Edition
Tubetech CL1B
Audio Thrills phono
AKG mic
Bellari VP130 phono
See more: vacuum tube
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 (Recommended Pair) 12AX7 Telefunken Germany <> bottom ribbed plates used/very good 1960 era (1.0/1.2ma and 1.0/1.1ma) 1-5% matched (highest mA and Gm)&Category=vacuum tube&ImageURL=http://tubeworldexpress.com/cdn/shop/files/1_6c40fbd1-eb8b-4b9d-b6bd-aa96d61f6021.jpg?v=1701186603){kind=link}
 (Recommended Pair) 12AX7 Telefunken Germany <> bottom ribbed plates used/very good 1960 era (1.0/1.2ma and 1.0/1.1ma) 1-5% matched (highest mA and Gm) "Pin It")