|
ECC83 / 12AX7 / CV492 double triode
See also CV4004 and the fly lead version CV4035 which are based on this valve.
|
|||||||||||||||||||||||||||||||||||||||||||||||
Variations in design: from left to right, Mullard British made, Mazda marked Foreign, imported Mullard, Brimar (12AX7 marked) made in England, and Pinnacle ECC83/12AX7 marked. |