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(!!!) (Mullard Single) 7247=12DW7 Westinghouse Mullard ribbed plates NOS 1973 (1.0ma and 10.8ma)
(!!!) (Mullard Single) 7247=12DW7 Westinghouse Mullard ribbed plates NOS 1973 (1.0ma and 10.8ma)
$ 69.99
7247=12DW7 Westinghouse Mullard ribbed plates NOS 1973 date code faded
12AX7 Section = 1.0ma Gm=1500 (very strong)
12AU7 Section = 10.8ma Gm=2200 (very strong)
Tested on Amplitrex
12AX7 Section NOS Good = 1-1.2ma Gm=1500-1600
12AU7 Section NOS Good = 8-10ma Gm=1800-2200
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 (Mullard Single) 7247=12DW7 Westinghouse Mullard ribbed plates NOS 1973 (1.0ma and 10.8ma)&Category=vacuum tube&ImageURL=http://tubeworldexpress.com/cdn/shop/files/1_2d56af10-9246-44d4-9bc7-803c53fab102.jpg?v=1754075750){kind=link}
 (Mullard Single) 7247=12DW7 Westinghouse Mullard ribbed plates NOS 1973 (1.0ma and 10.8ma) "Pin It")