Description: *FantasticTubes 🎷 🎶*One matched pair, circa 1960s, U.S.A.made by Sylvania, type 12BY7A vacuum tubes as pictured. <<<<<<< As pictured = The tubes you see are the tubes you get! >>>>>>>Condition: New Old Stock / New In Boxes Silk-Screening: Please see the photos Acid Etched Designations: 12BY7A / USA 12BY7A / USA Date Codes: mm / EFW mm / EFP Tubes feature a top-mounted 'Large Halo-Ring' getters construction.Tubes appear to have same internal structure.* Thoroughly tested on Hickok 539B* for short (pass), gas (pass) and mutual conductance (Gm). Test Results (Gm) 11250 µMhos 11750 µMhos minimum recommended (65% of NEW) for a good tube: 5700*Hickok 539B is a mutual conductance (Gm) type tube tester. It does check for mutual conductance which is a more accurate measure of tube's age.Satisfaction Guaranteed! *FantasticTubes !!! 🎷 🎶
Price: 40 USD
Location: Whitestone, New York
End Time: 2024-11-26T13:44:35.000Z
Shipping Cost: 0 USD
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Item Specifics
Restocking Fee: No
Return shipping will be paid by: Seller
All returns accepted: Returns Accepted
Item must be returned within: 30 Days
Refund will be given as: Money Back
Brand: SYLVANIA
Type: Vacuum Tube
Model: 12BY7A
Country/Region of Manufacture: United States
Manufacturer (original): Sylvania
