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(!!) 12AU7 Hitachi JAPAN branded IEC Mullard NOS tall ribbed plates 1965-1966 (9.0/9.2ma) 1-2% section balance

(!!) 12AU7 Hitachi JAPAN branded IEC Mullard NOS tall ribbed plates 1965-1966 (9.0/9.2ma) 1-2% section balance

$ 34.99

1 low noise tube) 12AU7 Hitachi JAPAN branded IEC Mullard NOS tall ribbed plates copper grid posts 1965-1966 in white box

1 section) 9.0ma Gm=2100

1 section) 9.2ma Gm=2100

 

Amplitrex Test Data

Good Ma range 8-10ma

Good Gm range 1800-2200

 

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