12AU7
The 12AU7 is a medium-mu twin triode miniature glass tube. In most circuits it is used as a class A amplifier per triode section. This tube has been, and still is, widely used in the preamplifier stages of high fidelity audio equipment, musical instrument amps, public address equipment, and broadcast equipment. It was used in so many different types of equipment that the vintage versions of this tube are still available without too much searching. Like their cousin, the 12AX7, the premium USA and West European brands are being hunted to extinction, but there are still bargains to be had in other vintage USA brands
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Pair of Telefunken ECC82/12AU7 Smooth Plate Tubes | US $26.00 | 
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Pair of Philips Amperex ECC82 / 12AU7 Tubes | US $27.00 |
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6 Sylvania 12AU7 A Grey Plate Square Getter Tube Tested | US $25.00 |
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Trio 12AU7 Heath by Mullard 1958 Blackburn Very Rare!! | US $175.00 |
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2XNOS CV491=12AU7=ECC82 Mullard, D-Getter, Long Plates | US $289.99 |
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2XNOS ECC82=12AU7 Mullard, 1961, Made in Blackburn, UK | US $124.99 |
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12AU7 MATCHED PAIR RAYTHEON LONG PLATE TUBES ECC82 | US $24.99 |
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2XNOS ECC82=12AU7 RTC, 1963, Made in Blackburn, UK | US $99.99 |
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ECC82 RFT TUBES STRONG MATCHED PAIR 12AU7 | US $24.99 |
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12AU7 G.E. VACUUM RADIO TUBE NOS | US $9.99 |
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Matched Pair Sylvania 12AU7 Tubes NOS-Testing | US $20.00 |
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ONE OR MORE NOS MULLARD 12AU7 ECC82 BLACKBURN CODE | US $25.00 |
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ONE OR MORE 1962 CIFTE 12AU7 ECC82 NOS FROM BULK BOX | US $15.00 |
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BULK BOX OF 50 CIFTE 12AU7 ECC82 FRANCE 1962 | US $750.00 |
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1 Tube 12AU7 / ECC82 RCA Black Plates 1952. D Getter | US $24.00 |
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Pair of Tubes 12AU7 / ECC82 RCA Black Plates. 1950s. | US $28.00 |
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2 Matched Pair Tubes 12AU7 / ECC82 RCA Black Pla. 1950s | US $35.00 |
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Sylvania Gold Brand 5963 / 12AU7 Gold Pin tubes, Good ! | US $24.99 |
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TUNGSOL 12AU7 (ECC82) GREY PLATE TUBE MATCHING SECTIONS | US $4.99 |
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Vintage 5814 Military Grade 12AU7 ECC82 Vacuum Tube | US $9.95 |
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