6680 = 12AU7A ECC82. MATCHED NOS PAIR RCA 6680. These are actually Labeled 6680 (see pics) 1 is pretty faded. Amplifier / Radio / Audio. Side D Getter. Made in USA.
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Diamond Bottom.
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“The 6U10 makes use of the many pins of the compactron base and integrates 3 triodes in one envelope. All cathodes, grids and plates sare brought out to separate pins. All three systems have a common heater.
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This is a vintage collector's set of eight Toshiba 12AX7A vacuum tubes, model CD263. These tubes have been stored long-term and are ideal for enthusiasts and collectors seeking authentic vintage electronic components. We are located in Japan.For electrical products, check the manufacturer and product and convert to the voltage of each country.Please note that we have many second-hand products (100V) that were used in Japan for sale. If you have any questions, please feel free to contact us at any time.We plan to ship by FedEx or DHL.Please contact us as the shipping fee can be changed in some cases. All items are shipped under DDU (Delivered Duty Unpaid) terms. This means that import duties, VAT, and customs clearance fees are the buyer’s responsibility and must be paid upon delivery in.
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One pair of Mullard 12AX7/12AX7A tubes, made for Fleetwood and Knight (Kit). Rates dependent on the country of origin. U.S. origin has no tariff to the States.
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One pair of 12AXA tubes by RCA. The prints are off due to age. Typical rectangular top mica. Rates dependent on the country of origin. U.S. origin has no tariff to the States.
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Tested on both our eTracer curve tracer, and Hickok 800A testers. Triode #1 - Plate Current = 2.70mA \ Rp = 27820 \ Gm = 1602 \ Mu = 41.9 \ Corners = PASS. Triode #2 - Plate Current = 2.71mA \ Rp = 28064 \ Gm = 1600 \ Mu = 41.5 \ Corners = PASS Gm Nominal = 1250 \ Minimum Good = 700.
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Lot of two vacuum tube shields 9 Pin 12AX7 12AU7 J Slot aluminum coated with black hard plastic heat shields.
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