Mullard
12AT7/ECC81
Made in 1956
with Angled Square Getter
and Same Date Code.

ULTRA RARE PAIR MULLARD MITCHAM FACTORY 1956 WELDED WING PLATE 12AT7 TUBE. THE WELDED PLATE VERSION WAS ONLY MADE FOR A FEW MONTHS IN 1956. SPOT WELDED WING PLATES SQUARE GETTER COPPER POSTS. ULTRA RARE! 


Date Code: 650 R6G

Made in July 1956.

Fully tested by calibrated Hickok 539C tubes tester
with no shorts, leakage or gas.  

Measurement: 
4400/5250
where minimum good value is 2500

Test very strong and tightly balanced.

Tested in my preamplifier to make sure working as intended with no issues at all.

I will gladly combine shipping.

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The tube(s) in this sale include a 30-day satisfaction guarantee.
I strive to ensure you have a completely satisfactory purchase experience.
If you are unhappy with your purchase for any reason,
you can return the item for a full refund.

Please contact me directly prior to opening a return or leaving feedback.
I will almost always reply at least within 24 hours 
to remedy the situation for you with direct communication.