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(!!!!) (Best Overall Pair) 7247=12DW7 GE Mullard England NOS 1966 (1.8/12ma and 1.7/11.8ma) (High Ma and Gm)
(!!!!) (Best Overall Pair) 7247=12DW7 GE Mullard England NOS 1966 (1.8/12ma and 1.7/11.8ma) (High Ma and Gm)
$ 144.99
1 matched pair) 7247=12DW7 GE Mullard NOS (6B2-B6G1=1966) same date codes
12AX7 Section = 1.7ma Gm=2000 and 1.8ma Gm=2000
12AU7 Section = 12.0ma Gm=2300 and and 11.8ma Gm=2200
Tested on Amplitrex
12AX7 Section Good = 1.0-1.2ma Gm=1600
12AU7 Section Good = 8-10ma Gm=1800-2200
Recommended for:
- Fisher 400 CX-2
- Eico 2510 amp
- Eico ST-70 preamp 1961
- Ampeg SVT 1974, VT40
- Quicksilver silver sixty mono amps
- SWART amp (vibroto/tremolo)
- SWART Atom (2012)
- Eico 2036 amp
- Li'l Dawg Amps
See more: vacuum tube
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 (Best Overall Pair) 7247=12DW7 GE Mullard England NOS 1966 (1.8/12ma and 1.7/11.8ma) (High Ma and Gm) "Pin It")