(!!!) (Best Single) 7247=12DW7 GE Mullard England NOS 1966 (1.4ma/14.5ma) (High Ma and Gm)
$ 79.99
1 tube) 7247=12DW7 GE Mullard NOS 1966
12AX7 Section = 1.4ma Gm=1900
12AU7 Section = 14.5ma Gm=2500
Tested on Amplitrex
12AX7 Section Good = 1.0-1.2ma Gm=1600
12AU7 Section Good = 8-10ma Gm=1800-2200
Recommended for:
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- Eico 2510 amp
- Eico ST-70 preamp 1961
- Ampeg SVT 1974, VT40
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- SWART amp (vibroto/tremolo)
- SWART Atom (2012)
- Eico 2036 amp
- Li'l Dawg Amps
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