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1. Single Tube - GE 12AT7 ECC81 NOS NIB 1958 Vacuum Tubes - Tested OK original box

   New Old stock. With Original box. From clean working environment.

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2. 2 x Jan GE 12AT7 Tube NOS USA. Amplitrex / Tube Amp Doctor Matched Pair.

   (Matched by Tube Amp Doctor. Matching verified on an Amplitrex. It is becoming an industry standard. Manufactured in the USA. Tubes matched to gm within 10% or better). We also check noise and Micro-phonics.

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3. VINTAGE GE 12AT7 GREY PLATE TUBE TESTED EXCELLENT D GETTER (T20)

   This vintage GE 12AT7 tube is a rare find! It boasts a grey plate and a D getter, making it a unique addition to any audio tube collection. The tube has been tested and is in excellent working condition. The tube is a unit type and comes with a quantity of 1. It was manufactured in the United States and is perfect for vintage electronics enthusiasts. Add this rare GE 12AT7 to your collection today!

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4. Pair GE 6201 12AT7WA 3 Mica D-Getter 12AT7 ECC81, Maxi-Pre Tested NOS, bn3722

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5. Gm Tested NOS NIB QUAD GE 12AT7 Audio Amplifier Tubes

   Here's a NOS quad of GE 12AT7 tubes On my B&K 747 gm tester where the reading is shown in percent of NEW tube value, these test as follows:118-125, 125-115, 110-125, and 106-120. It may or may not work at all when you get it!

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6. 9 Vintage 12AT7 / 12AU7 Vacuum Tubes - Amp Tested - GE Philips RCA Mullard WU

   2 - General Electric 12AT7. 1 - RCA 12AT7. 2 - Unknown 12AU7.

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7. GE 12AX7 1950's Long Gray Plate Tubes PLATINUM MATCHED on AT1000 ECC83

   Triple Platinum Matched on Amplitrex AT1000. Amplitrex AT1000 Test Results 90%+ GM = Within NOS Specs 90%+ EM = Within NOS Specs. All tubes are tested with the Audiophile in mind for SHORTS, GAS, MUTUAL CONDUCTANCE and NOISE (large tube lots are not tested for noise).

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8. NOS - GE 12AT7 ECC81 NIB 1958 Vacuum Tube - Tested OK

   Nos Tube. Original issue box included.

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