Quote from a popular online tube retailer:"A really fine blackplate from the 1950s, many audiophiles feel these outperform most of the other NOS 12AU7 tubes. Ranked on par with the European brands!" I have 4 matched pairs plus a quad of 1950s RCA 5963 12AU7 double mica blackplate tubes from the 1950s for sale. Pair 1
Good Hewlett Packard logos with 1959 dates. THESE ARE GRAY PLATES.
Tested 91/91 and 91/91 where 70 is the minimum score.
$30 SOLD Pair 2
Partial logos with fat/wide D getters.
Tested 91/90 and 90/90 where 70 is the minimum good score
$30 Pair 3
Partial logos with foil D or flat bar D getters.
Tested 87/88 and 89/90 where 70 is the minimum good score
$25 Pair 4
No logos with foil D or flat bar D getters.
Tested 89/89 and 90/91 where 70 is the minimum good score.
$20 SOLD Quad
No logos with foil D or flat bar D getters.
Tested 88/88 89/88 87/88 and 85/86 where 70 is the minimum good score.
Includes 3 old 5963 boxes. 2 GE 1 RCA. Boxes are rough.
$55
No PayPal fees and $3 USPS 1st Class shipping to USA. Please see my other listings. I will combine shipping and also consider discounts for purchase of multiple items at the same time. Feel free to ask questions. Thanks for looking.
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