These tubes were tested
in my Military Hickok Cardmatic to make sure these were
perfect. All the tests were excellent. These tubes were made in the
U.S.A. (in the '50's), by Sylvania, for high end audio use.
These are genuine vintage audio tubes, highly sought after by
audiophile professionals that use 12SN7 tubes. They are the earlier bad boy
version, with the 3 rivet holes in the plates, that many audiophiles are seeking. The sound is said to be incredible with these type tubes.
These are getting scarce and are a high end tube used by most of the professionals. Great for any high end audio amp. These tubes are what audiophile enthusiasts are looking for. Both of these
tubes will come in their original Sylvania 12SN7GT boxes (one box has some tape on it), as shown. I will pack
carefully & ship very quickly.
Sylvania codes: 213 & 326
Test
results: 87/88 & 83/88, whereas 50/50 is a minimum good on this
Hickok Cardmatic tester. The test results are a match.
Tubes fully guaranteed!
Bid with confidence and assurance that all my products are exactly as advertised! I have 100% rating!
SHIPPING & HANDLING - lower 48 USA:
FLAT RATE of $3.95 INCLUDING PACKING AND INSURANCE, FOR THE LOWER 48 USA. I will use USPS Priority unless otherwise requested, with tracking.
Shipping and handling outside lower 48 USA and International:
International shipping will be done by; USPS First Class Mail International $12.00
Note: Item will be packed, in a professional manner
and ready to ship, within 1 days of payment. I have great feedback on my packing.
100% Feedback! Bid with the utmost confidence!
Terms of Sale:
I will accept payment though PayPal only.