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(!!!!!) (Best XF2 Pair) EL34 Mullard branded Amperex and RCA XF2 NOS double "O-O" getter halos 1964 and 1965 (71ma and 72.4ma)

$ 399.99

1 matched pair) EL34 Mullard branded Amperex and RCA XF2 NOS double "O-O" getter halos 1964 and 1965

1 tube) 71.0ma Gm=10,600 (XF2-B4E1=1964) Amperex Bugle Boy small color imperfection on bottom edge of base

1 tube) 72.4ma Gm=10,800 (XF2-B5E2=1965) RCA

 

Matched on Amplitrex

Good NOS Ma range = 70-90ma

Good NOS Gm range = 10,000 - 12,000

 

Sweet Spot = 80ma

 

Recommended for

- Diezel Stereo Guitar Amplifier
- CARR amplifiers
- Marantz 2
- Manley Snapper

- PrimaLuna DIALOGUE PREMIUM HP

 

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