Mullard code is etched into the glass. Tube has a
circular getter, and nice silver flashing on top. Double suture on
top. Sounds the same as the non-military version which means it
sounds great! This is the real thing! Very rare. Box has printed
Valve Electronic and CV4024 QDD on flap. Side of box is printed
10CV, 5960-99-000 and 4024. Even comes with original tube pin
holder!
The Mullard 12AT7WA / CV4024 tube is perhaps the finest 12AT7
available today for any price. The tubes are low noise and the
special quality long life versions of the ECC81/12AT7. These tubes
offer thick mica for lower microphonics and extra support rods for
more stabilization.