(!!!) (BEST PAIR #2) 7247=12DW7 CBS gray ribbed plates NOS 1960 (0.9/9ma and 1.0/9ma)
$ 94.99
1 pair) 7247=12DW7 CBS gray ribbed plates NOS 1960
1 tube) 0.9ma Gm=1500 (12AX7) and 9ma Gm=2000 (12AU7)
1 tube) 1.0ma Gm=1500 (12AX7) and 9ma Gm=2100 (12AU7)
Tested on Amplitrex
12AX7 Section NOS = 0.9ma-1.2ma and Gm=1500-1600+
12AU7 Section NOS = 8-10ma and Gm=1800-2200
Recommended for:
- Fisher 400 CX-2
- Eico 2510 amp
- Eico ST-70 preamp 1961
- Ampeg SVT 1974, VT40
See more: vacuum tube
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 (BEST PAIR #2) 7247=12DW7 CBS gray ribbed plates NOS 1960 (0.9/9ma and 1.0/9ma) "Pin It")