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(!!!) (Best Value Single) CV4003=M8136=12AU7 Mullard UK NOS large "O" getter halo 1962 dirt was over entire tube (10.6/11.0ma)

By Tube World

$ 69.99

1 low noise tube) CV4003=M8136=12AU7 Mullard UK NOS large "O" getter halo 1962 (Wyteleafe plant) dirt was over entire tube - reboxed

1 section) 10.6ma Gm=2300

1 section) 11.0ma Gm=2300

 

Tested on Amplitrex

Good Ma range 8-10ma

Good Gm range 1800-2200


M8136 on front of tube

CV4003 on backside of tube

great midrange and good bass

Low Noise and not microphonic 

 

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See more: vacuum tube
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