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

5pcs RCA 12AU7 tubes NOS 1960
5pcs RCA 12AU7 tubes NOS 1960
Paypal   US $75.00
Special for Tripath 12AU7 Buffer Amp for smooth sound
Special for Tripath 12AU7 Buffer Amp for smooth sound
Paypal   US $38.99
Shuguang Beijing 12AU7 Pre Amplifier Tube 2 pcs
Shuguang Beijing 12AU7 Pre Amplifier Tube 2 pcs
Paypal   US $19.00
12AU7 La Radiotechnique Tube French Philips Mullards
12AU7 La Radiotechnique Tube French Philips Mullards
Paypal   US $44.99
Electro Harmonix 12AU7 pre amp tubesGold Pin NEW
Electro Harmonix 12AU7 pre amp tubesGold Pin NEW
Paypal   US $19.99
JJ electronics preamp tubeECC802SBest 12AU7BRAND NEW
JJ electronics preamp tubeECC802SBest 12AU7BRAND NEW
Paypal   US $15.99
Sylvania Gold Brand 5963 12AU7 Gold Pin tubes Good
Sylvania Gold Brand 5963 12AU7 Gold Pin tubes Good
Paypal   US $24.99
JJ Gold Pin preamp tubes ECC82 12AU7 BRAND NEW
JJ Gold Pin preamp tubes ECC82 12AU7 BRAND NEW
Paypal   US $23.99
NOS 12AU7 tubes by French Military by Mazda CIFTE New
NOS 12AU7 tubes by French Military by Mazda CIFTE New
Paypal   US $39.99
JJ Gold Pin preamp tubesECC802 Best 12AU7 BRAND NEW
JJ Gold Pin preamp tubesECC802 Best 12AU7 BRAND NEW
Paypal   US $27.99
JJ Tesla 12AU7 ECC82 preamp tubes NEW
JJ Tesla 12AU7 ECC82 preamp tubes NEW
Paypal   US $11.99
6 RCA 12AU7 ECC82 black plate tubes tested lot D40
6 RCA 12AU7 ECC82 black plate tubes tested lot D40
Paypal   US $17.10
125 NOS USED 12 volt AA5 Tubes 50C5 12AT7 12AU7 35C5
125 NOS USED 12 volt AA5 Tubes 50C5 12AT7 12AU7 35C5
Paypal   US $41.00
Vintage Sylvania preamp 12AX7 12AU7 12AT7 pre amp valve
Vintage Sylvania preamp 12AX7 12AU7 12AT7 pre amp valve
Paypal   US $5.00
Mullard EL34 6CA7 ECC82 12AU7 Blackburn Xf3
Mullard EL34 6CA7 ECC82 12AU7 Blackburn Xf3
Paypal   US $19.50
pair 2 Telefunken ECC82 12AU7
pair 2 Telefunken ECC82 12AU7
Paypal   US $66.00
lot 26 tested 12Au7 vaccum tubes
lot 26 tested 12Au7 vaccum tubes
Paypal   US $30.00
ONE NEW Tube adaptor 12AU7 to 6SN7 free shipping world
ONE NEW Tube adaptor 12AU7 to 6SN7 free shipping world
Paypal   US $16.99
vintage tested 12AU7 telefunken vacuum amp tube
vintage tested 12AU7 telefunken vacuum amp tube
Paypal   US $36.00
Matched Pair telefunken 12au7 tubes tested good qa
Matched Pair telefunken 12au7 tubes tested good qa
Paypal   US $80.00
2X Match Sylvania Black Plate D getter JAN 12AU7 ECC82
2X Match Sylvania Black Plate D getter JAN 12AU7 ECC82
Paypal   US $24.95
Match Sylvania Black Plate D getter JAN 12AU7 ECC82
Match Sylvania Black Plate D getter JAN 12AU7 ECC82
Paypal   US $14.95
5814 GE JAN Audio Vacuum Tubes 6 pcs USAF 12AU7 T NEW
5814 GE JAN Audio Vacuum Tubes 6 pcs USAF 12AU7 T NEW
Paypal   US $16.95
ECC82 12AU7 MULLARD ENGLAND LONG PLATE 1950s TESTED
ECC82 12AU7 MULLARD ENGLAND LONG PLATE 1950s TESTED
Paypal   US $19.99
ECC82 12AU7 MULLARD ENGLAND 60S TESTED
ECC82 12AU7 MULLARD ENGLAND 60S TESTED
Paypal   US $9.99
MATCHED PAIR 12AU7 12AU7A ECC82 RCA CLEAR TOP LP USA
MATCHED PAIR 12AU7 12AU7A ECC82 RCA CLEAR TOP LP USA
Paypal   US $9.99
2 Telefunken 12AU7 ECC82 Tubes Smoothplates with
2 Telefunken 12AU7 ECC82 Tubes Smoothplates with
Paypal   US $22.50
5 JAN 5814 12AU7 Sylvania Tubes NOS
5 JAN 5814 12AU7 Sylvania Tubes NOS
Paypal   US $150.00
812AX7 12AU7 9 Pin AMPS Silver TUBE SOCKETGZC9 F
812AX7 12AU7 9 Pin AMPS Silver TUBE SOCKETGZC9 F
Paypal   US $9.99
Quad NOS NIB Matsushita 12AU7 6680 Audio Tubes Date Mch
Quad NOS NIB Matsushita 12AU7 6680 Audio Tubes Date Mch
Paypal   US $49.00
2 MAZDA CIFTE 12AU7 3 MICAS TESTED
2 MAZDA CIFTE 12AU7 3 MICAS TESTED
Paypal   US $99.00
Philips ECC82 12AU7 pair matched audiotubes nos nib
Philips ECC82 12AU7 pair matched audiotubes nos nib
Paypal   US $74.50
VINTAGE RADIO AUDIO TV MULLARD ECC82 12AU7 VALVE TUBE
VINTAGE RADIO AUDIO TV MULLARD ECC82 12AU7 VALVE TUBE
Paypal   US $8.24
12AU7A two 2 amp vacuum tubes Sylvania tested 12AU7
12AU7A two 2 amp vacuum tubes Sylvania tested 12AU7
Paypal   US $9.99
MULLARD CV4003 ECC82 12AU7 TUBE VALVE MILLITARY SPC NOS
MULLARD CV4003 ECC82 12AU7 TUBE VALVE MILLITARY SPC NOS
Paypal   US $9.74
4 x ECC82 12AU7 NOS RFT TWIN TRIODE AUDIO VALVES TUBES
4 x ECC82 12AU7 NOS RFT TWIN TRIODE AUDIO VALVES TUBES
Paypal   US $59.94
2 SYLVANIA 12AU7A 12AU7 ECC82 Amp Vacuum Tube Red Label
2 SYLVANIA 12AU7A 12AU7 ECC82 Amp Vacuum Tube Red Label
Paypal   US $23.95
SYLVANIA 12AU7A 12AU7 ECC82 Guitar Amp Vacuum Tube
SYLVANIA 12AU7A 12AU7 ECC82 Guitar Amp Vacuum Tube
Paypal   US $12.88
CBS 12AU7A 12AU7 ECC83 Guitar Amp Vacuum Tube D GET 50s
CBS 12AU7A 12AU7 ECC83 Guitar Amp Vacuum Tube D GET 50s
Paypal   US $9.95
2 NIB 67 Sylvania JAN 6189 Electron Tubes 12AU7 Amp
2 NIB 67 Sylvania JAN 6189 Electron Tubes 12AU7 Amp
Paypal   US $19.99
12AU7 RCA Black Plate Used Tested No Reserve
12AU7 RCA Black Plate Used Tested No Reserve
Paypal   US $3.00
2 x TUBES TELEFUNKEN ECC82  SEALED NEW 12AU7
2 x TUBES TELEFUNKEN ECC82 SEALED NEW 12AU7
Paypal   US $230.00
VINTAGE THE FISHER TUBE AMP 80 AZ W 2 EL37 2 12AU7
VINTAGE THE FISHER TUBE AMP 80 AZ W 2 EL37 2 12AU7
Paypal   US $122.50
JJ ECC99 2X Tall 12AU7 New In box
JJ ECC99 2X Tall 12AU7 New In box
Paypal   US $13.99
6Gold 9 Pin Tube Socket for 12AX7 12AU7 6GJ8 EL84 9AG
6Gold 9 Pin Tube Socket for 12AX7 12AU7 6GJ8 EL84 9AG
Paypal   US $16.99
6pcsVacuum Tube 9 Pin Socket for 12AX7 12AU7 ECC839YG
6pcsVacuum Tube 9 Pin Socket for 12AX7 12AU7 ECC839YG
Paypal   US $16.99
5Radio Tube 9 Pin Panel Socket 6DJ8 12AX7 12AU7C9Y
5Radio Tube 9 Pin Panel Socket 6DJ8 12AX7 12AU7C9Y
Paypal   US $9.99
6GOLD Valve Tube 9 Pin Panel Socket 12AX7 12AU7Y3G
6GOLD Valve Tube 9 Pin Panel Socket 12AX7 12AU7Y3G
Paypal   US $16.99
2 x ECC82 12AU7 NOS RFT TWIN TRIODE AUDIO VALVES TUBES
2 x ECC82 12AU7 NOS RFT TWIN TRIODE AUDIO VALVES TUBES
Paypal   US $22.00
RARE SIEMENS GOLD PIN E82CC ECC802S 12AU7 TUBE
RARE SIEMENS GOLD PIN E82CC ECC802S 12AU7 TUBE
Paypal   US $1.25
4 x ECC82 12AU7 NOS TUNGSRAM TWIN TRIODE VALVES TUBES
4 x ECC82 12AU7 NOS TUNGSRAM TWIN TRIODE VALVES TUBES
Paypal   US $49.99
69 Pin Tube Shield Cover 12AX7 12AU7 6CU7 ECC829GR
69 Pin Tube Shield Cover 12AX7 12AU7 6CU7 ECC829GR
Paypal   US $9.99
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