Matched Pair Amperex 7316/12AU7 Short Plate D-Getter 1959 Heerlen Holland Strong

Description

Matched Pair
Amperex
7316
(=12AU7/ECC82/ECC186)
Short Plate
O-Getter
Top Seams
Made in Holland
.
Labeled as Hewlett Packard: Instrument Grade.
Very Early Production Amperex PQ 7316 from 1959.
Red Painted Tip indicates a Special Selection.
Date Code: Ct? Delta 9L & Ct4 Delta 9L
Both tubes are made in December 1959
in Heerlen Holland.
Fully tested by calibrated Hickok 539C tube tester
with no shorts, leakage or gas.
Measurement:
2750/2920
2800/2800
where minimum good value is 1950
Strong and very tightly matched pair!
Tested in my preamplifier to make sure working as intended with no issues at all.
I will gladly combine shipping upon request.
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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.