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(!!!!!) (Recommended Brimar Single) 6057=12AX7 Brimar Thorn "T" England NOS 1960's (Gm=1550/1650) (1.0/1.2ma)

$ 179.99

1 low noise tube) 6057=CV4004=12AX7 Brimar Thorn "T" England NOS narrow ribbed gray plates 1960's (6057 is a premium low noise 12AX7)

Gm=1550 (1.0ma)

Gm=1650 (1.2ma)

 

Good Ma = 1ma+

Good Gm = 1600+

 

recommended for:

Manley Reference Cardioid Microphone REFCARD (Manley Ref C)

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