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(!!!) (Recommended Pair) CV4058=M8080=6100=6C4 Mullard NOS 1973-1977 (8.4ma and 8.8ma)

$ 139.99

1 pair) CV4058=M8080=6100=6C4 Mullard NOS 1973 and 1977 in white boxes

1 tube) 8.8ma Gm=1800 (1973) CV4058

1 tube) 8.4ma Gm=1900 (1977) M8080


 

Tested on Amplitrex

Vplate=250V

Vgrid=-8.5V

Good Ma range 8-10ma

Good Gm range 1800-2200

 

Recommended for

- Conrad Johnson PV14L2, PV15 preamp
- Conrad Johnson MET1 (6 Channel preamp)
- Conrad Johnson Classic preamp 2010
- Conrad Jognson Classic SE 2011
- Conrad Johnson ET-2 preamp
- Heathkit amp
- Supratek Chenin phono pre

 

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