(!!!) (Best Pair) 8D8=EF86 Brimar UK quad mica NOS 1961 (3.6ma and 3.7ma) 1-2% matched (highest mA and Gm)
$199.99
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1 pair) 8D8=EF86 Brimar UK quad mica NOS 1961 in white boxes 1 tube) 3.6ma Gm=2200 1 tube) 3.7ma Gm=2200 Tested on Amplitrex Vplate=250V Vscreen=140V Vgrid=-2V Good Ma = 3ma Good Gm=1800-2200 Recommended for - Vox AC10, AC30- Dr. Z Z-28- Vox AC15HTVH head (install all Mullard tubes: EF86, 12AX7, EZ81, EL84)- Eastern Electric M520- Matchless C-30, SC30- Bottlehead - VOX AC30 Heritage- Microtek UM92.1 mic [ MEYER SOUND LABS (Berkeley, CA) ]- U67- Luxman MQ-68C
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