12AT7

The 12AT7 is a high-frequency twin triode in a small 9-pin miniature glass package. This tube has a mu factor of 60, as compared to the higher gain 12AX7 with a factor of 100, and the 12AU7, with a mu of only 20. As you can see, it shares similar pin connections with it's cousins, but these tubes are not interchangeable. The 12AT7 is found in many high fidelity applications, as each triode section in normal use operates as a class A amplifier. They also turn up in line and microphone preamplifiers, musical instrument amps, and vacuum tube equipped recording equipment. By their design, they are inherently low noise, making them a good choice for these applications.

 

12AT7 6189W VINTAGE ELECTRONIS NOS TUBES JAN SYLVANIA
12AT7 6189W VINTAGE ELECTRONIS NOS TUBES JAN SYLVANIA
Paypal   US $19.95
SYLVANIA 12AT7 ECC81 11mm BLACK PLATE O GETTER MATCH PR
SYLVANIA 12AT7 ECC81 11mm BLACK PLATE O GETTER MATCH PR
Paypal   US $69.80
2x ECC81 12AT7 SYLVANIA Tube Röhre Lampe Valvola NOS
2x ECC81 12AT7 SYLVANIA Tube Röhre Lampe Valvola NOS
Paypal   US $99.99
2 Matched Tubes ECC81 12AT7 SIEMENS Tested
2 Matched Tubes ECC81 12AT7 SIEMENS Tested
Paypal   US $12.00
2 Used Matched Tubes ECC81 12AT7 SIEMENS Tested
2 Used Matched Tubes ECC81 12AT7 SIEMENS Tested
Paypal   US $6.00
1 Tube 12AT7 ECC81 BRIMAR Square Getter Tested
1 Tube 12AT7 ECC81 BRIMAR Square Getter Tested
Paypal   US $5.00
2 Tubes ECC81 12AT7 RFT O Getter Germany Tested
2 Tubes ECC81 12AT7 RFT O Getter Germany Tested
Paypal   US $9.00
RCA 12AT7 11mm PLATE O GETTER LOGO WORN OFF USA USED
RCA 12AT7 11mm PLATE O GETTER LOGO WORN OFF USA USED
Paypal   US $17.90
12AT7 VINTAGE ELECTRONIS NOS TUBES RCA GRY BOX PLT
12AT7 VINTAGE ELECTRONIS NOS TUBES RCA GRY BOX PLT
Paypal   US $14.95
GE 12AT7 RU 188 5 11mm PLATE O GETTER BALANCE USA MADE
GE 12AT7 RU 188 5 11mm PLATE O GETTER BALANCE USA MADE
Paypal   US $24.90
Matched Pair Tung Sol 12AT7 Tubes
Matched Pair Tung Sol 12AT7 Tubes
Paypal   US $35.00
Telefunken TWO TUBES 12AT7 ECC81 Fisher logo
Telefunken TWO TUBES 12AT7 ECC81 Fisher logo
Paypal   US $90.00
NEW JJ Tesla 12AT7 ECC81 Pre Amp Tube
NEW JJ Tesla 12AT7 ECC81 Pre Amp Tube
Paypal   US $9.97
2 x ECC81 12AT7 NOS RFT PREAMP TWIN TRIODE VALVES TUBES
2 x ECC81 12AT7 NOS RFT PREAMP TWIN TRIODE VALVES TUBES
Paypal   US $22.00
4 x ECC81 12AT7 NOS RFT PREAMP TWIN TRIODE VALVES TUBES
4 x ECC81 12AT7 NOS RFT PREAMP TWIN TRIODE VALVES TUBES
Paypal   US $45.00
Electro Harmonix Tubes 12AT7 ECC81 EH NEW IN BOX
Electro Harmonix Tubes 12AT7 ECC81 EH NEW IN BOX
Paypal   US $9.50
Vintage Telefunken 12AT7 ECC81 Stereo Tube
Vintage Telefunken 12AT7 ECC81 Stereo Tube
Paypal   US $24.99
GE JG 12AT7WA 6201 12AT7 Amp Vacuum Tube 3 MICA SROD58
GE JG 12AT7WA 6201 12AT7 Amp Vacuum Tube 3 MICA SROD58
Paypal   US $39.95
VINTAGE SLYVANIA 12AT7 QTY 3 TUBES
VINTAGE SLYVANIA 12AT7 QTY 3 TUBES
Paypal   US $9.99
1pc ShuGuang Electron Vacuum Tubes 12AT7 ECC81
1pc ShuGuang Electron Vacuum Tubes 12AT7 ECC81
Paypal   US $10.50
GE TWO TUBES 5965 12AT7 ECC81 with GE Boxes
GE TWO TUBES 5965 12AT7 ECC81 with GE Boxes
Paypal   US $25.00
GE JG 12AT7 6201 Amp Vacuum Tube MATCHED SQ ]GETR 1956
GE JG 12AT7 6201 Amp Vacuum Tube MATCHED SQ ]GETR 1956
Paypal   US $27.95
2 matched Telefunken 12AT7 ECC81 tubes
2 matched Telefunken 12AT7 ECC81 tubes
Paypal   US $60.95
SYLVANIA WU 12AT7 6201 Amp Vacuum Tube BLACK PLATE
SYLVANIA WU 12AT7 6201 Amp Vacuum Tube BLACK PLATE
Paypal   US $11.88
SYLVANIA JAN FAA 12AT7 6201 Amp Vacuum Tube BLACK PLATE
SYLVANIA JAN FAA 12AT7 6201 Amp Vacuum Tube BLACK PLATE
Paypal   US $13.88
TUNG SOL 12AV7 12AT7 Amp Vacuum Tube MATCHED SET
TUNG SOL 12AV7 12AT7 Amp Vacuum Tube MATCHED SET
Paypal   US $27.95
RCA 5965 12AV7 12AT7 Amp Vacuum Tube BLACK PLATE 3 MICA
RCA 5965 12AV7 12AT7 Amp Vacuum Tube BLACK PLATE 3 MICA
Paypal   US $47.95
Radio Tubes 1 Telefunken 12AT7 ECC81 Tube
Radio Tubes 1 Telefunken 12AT7 ECC81 Tube
Paypal   US $75.00
GE 12AV7 12AT7 Amp Vacuum Tube MATCHED QUAD 3 PLATES
GE 12AV7 12AT7 Amp Vacuum Tube MATCHED QUAD 3 PLATES
Paypal   US $29.95
Chinese 12AT7 tube valve quad set
Chinese 12AT7 tube valve quad set
Paypal   US $31.89
CV4024 ECC81 12AT7 tube valve Brimar or Mullard
CV4024 ECC81 12AT7 tube valve Brimar or Mullard
Paypal   US $27.33
Brimar CV4020 12AT7 valve tube 1 pair
Brimar CV4020 12AT7 valve tube 1 pair
Paypal   US $182.20
2x 12AT7 ECC81 IC Tube Röhre Lampe TSF Valvola NOS
2x 12AT7 ECC81 IC Tube Röhre Lampe TSF Valvola NOS
Paypal   US $99.99
2x 12AT7 ECC81 RCA Tube Lampe TSF Valvola Röhre NOS
2x 12AT7 ECC81 RCA Tube Lampe TSF Valvola Röhre NOS
Paypal   US $99.99
Tung Sol 12at7 12 at7WANOS New Old Stock
Tung Sol 12at7 12 at7WANOS New Old Stock
   US $34.99
2 matched 1950s Tung Sol 12AT7 6201ECC81 tubes
2 matched 1950s Tung Sol 12AT7 6201ECC81 tubes
Paypal   US $31.95
Superb 12AT7 ECC81 tube “Square black plates” NOS
Superb 12AT7 ECC81 tube “Square black plates” NOS
Paypal   US $15.00
GE 6201 JAN 12AT7WA 12AT7 Amp Vacuum Tube S ROD 1965
GE 6201 JAN 12AT7WA 12AT7 Amp Vacuum Tube S ROD 1965
Paypal   US $14.88
GE 6201 JAN 12AT7WA 12AT7 Amp Vacuum Tube S ROD MATCH65
GE 6201 JAN 12AT7WA 12AT7 Amp Vacuum Tube S ROD MATCH65
Paypal   US $29.95
GE 6201 12AT7WA 12AT7 Amp Vacuum Tube MATCH SET 5 STAR
GE 6201 12AT7WA 12AT7 Amp Vacuum Tube MATCH SET 5 STAR
Paypal   US $39.95
Vintage Pair NOS General Electric 12AT7 Tubes REVERB
Vintage Pair NOS General Electric 12AT7 Tubes REVERB
Paypal   US $25.00
GE 6201 JAN 12AT7WC 12AT7 12AT7WA Amp Vacuum Tube S ROD
GE 6201 JAN 12AT7WC 12AT7 12AT7WA Amp Vacuum Tube S ROD
Paypal   US $12.88
2 matched Telefunken United 12AT7 ECC81 tubes
2 matched Telefunken United 12AT7 ECC81 tubes
Paypal   US $64.95
Very strong 12AT7 ECC81 tube “Square black plates”
Very strong 12AT7 ECC81 tube “Square black plates”
Paypal   US $12.00
2New Telefunken ECC81NOS12AT76201CV4024CV455A2900
2New Telefunken ECC81NOS12AT76201CV4024CV455A2900
Paypal   US $2.25
GE 6201 12AT7WA 12AT7 Amp Vacuum Tube 5 STARHIQUALITY
GE 6201 12AT7WA 12AT7 Amp Vacuum Tube 5 STARHIQUALITY
Paypal   US $16.95
GE 6201 12AT7 ECC81 Guitar Preamp Amp Vacuum Tube
GE 6201 12AT7 ECC81 Guitar Preamp Amp Vacuum Tube
Paypal   US $12.88
GE 12AT7 ECC81 Guitar Preamp Amp Vacuum Tube
GE 12AT7 ECC81 Guitar Preamp Amp Vacuum Tube
Paypal   US $11.88
One 12at7 tube
One 12at7 tube
Paypal   US $2.99
GE JAN CKR 12AT7 ECC81 Guitar Amp Vacuum Tube RARE 1950
GE JAN CKR 12AT7 ECC81 Guitar Amp Vacuum Tube RARE 1950
Paypal   US $19.95
GE 12AT7 ECC81 Guitar Amp Vacuum Tube RARE 1956 ] Get
GE 12AT7 ECC81 Guitar Amp Vacuum Tube RARE 1956 ] Get
Paypal   US $14.95
2 New Marshall 12AX7 ECC83 with 2 FREE GE 12AT7
2 New Marshall 12AX7 ECC83 with 2 FREE GE 12AT7
Paypal   US $12.88
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