ECC84=6CW7 Mullard Sonotone NOS 1960 (11.2/11.8ma)
$ 11.99
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1 tube) ECC84=6CW7 Mullard UK Sonotone NOS (m91-B0B=1960) also printed 1962
1 section) 11,8ma Gm=6300
1 section) 11.2ma Gm=5900
Tested on Amplitrex
Vplate=90
Vgrid=-1.5
Good Ma 9-12ma
Good Gm 5000-6000
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