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(!!!!!) (Best Pair) ECC83=12AX7 Telefunken Germany smooth plates NOS 1964-1965 (1.3/1.5ma and 1.2/1.4ma)
(!!!!!) (Best Pair) ECC83=12AX7 Telefunken Germany smooth plates NOS 1964-1965 (1.3/1.5ma and 1.2/1.4ma)
$ 598.88
1 low noise pair) 12AX7=ECC83 Telefunken Germany smooth plates NOS 1964-1965
1 section) 1.3/1.5ma Gm=1800/2000 (B2205901=1965) fair to good printing - date code on tube matches date code on box
1 section) 1.2/1.4ma Gm=1700/1800 (1964) fair printing
Good NOS Ma = 1.0mA+
Good NOS Gm = 1600+
Recommended for:
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See more: vacuum tube