Xf5 Codes. Mazda Amperex 6CA7 el34 vacuum tubes. Rare double d getters!

Made in Holland--date codes are as follows:

Xf5 l2E

Xf5 l2f1

Xf5 l2f2

Xf5 l2f2

Heathkit TT-1A tested

Double D getters ;)  The best!

Good flashing.

No rattles.

Good pins.

All test between 2800 and 2900 mHOS (x3) multiplier for true value. Matched to within 3%.

Reject Point on my tester is 1140, so these are almost double. Over 100%.

These should sound great!

Happy Amplifying!