110V 50W Transformer R type for Tube preamp 265V-0-265V 3.15V-0-3.15V 12.6V

$74.8 $44.88

Brand New Factory Tested Electro-Harmonix 300B Gold Grid & Pin Vacuum Tube

$146.63 $87.98

Matched Pair General Electric GE 12AU7/ECC83/5814 Vacuum Audio Tube

$88.71 $53.23

Nobsound E6 Direct Heated Vacuum Tube Class A Stereo Audio Pre-Amplifier NEW

$44.44 $26.67

Standard Tube Set for Laney AOR 30

$128.27 $76.97

Vintage Amperex 12AU7A/ECC83 Preamp Vacuum Tube Valve- Bangybang.tube

$88.71 $53.23

HiFi 6K4 Tube Preamplifier Amplifier Tube Preamp Audio Amp Home Theater DIY

$21.29 $12.78

Aphex 230 MVC Tube Pre/De-Ess/Gate/Big Bottom/Parts Only. READ DESCRIPTION

$110.0 $66.0

Valve Vacuum Electron Tube 6N2J Replace 6H2 Pairing Upgrade For Audio Amplifiers

$35.9 $21.54

Phono Preamp for Turntable Pre-amp Record Player Tube Amplifier

$26.04 $15.62

DC 12V-16V HiFi 6K4 Tube Preamplifier Preamp Audio Amp Home Theater Upgraded

$19.36 $11.62

HiFi 6K4 Tube Preamplifier Amplifier Tube Preamp Audio Amp Home Theater DIY

$21.72 $13.04

6HS6 RCA for Fisher Audio Receiver Pre-Amp Vacuum Tube Tested

$30.8 $18.48

ALBIT A1BP PRO Old Type Vacuum Tube: 12 AX 7 x 1 effector Discontinue item audio

$313.13 $187.88

CLASSIC 20 112 COMBO GUITAR AMPLIFIER

$704.0 $422.4

1pcs Shuguang Treasure CV181-Z Vacuum Pre-ampflier Tube Re CV181-T 6SN7

$52.8 $31.68

Fosi Audio BOX X1 Hi-Fi Phono Preamp for Turntable MM Phonograph Preamplifier

$35.2 $21.12

Vacuum Tube, PhotoMultiplier, RCA S83010E with Socket and AGC PMT Preamp

$83.6 $50.16

Vintage Teleking 12AU7/ECC82/5814 Preamp Vacuum Tube Valve- Bangybang.tube

$29.57 $17.75

GZLOZONE DIY Hifi PRT-01A 6J1 Tube Preamp PCB Stereo Vacuum Tubes Preamplifier

$7.92 $4.75

VACUUM TUBE PRE AMPLIFIER / ALU-7 240V /120V (With phono)

$772.33 $463.4

PRT07A 12AX7 Vacuum Tube Preamplifier Bare PCB Base on Marantz7(M7) Circuit

$6.87 $4.12

JOYO 20W Mini Amp Guitar Amplifier Tube Head 2 Channel Rock American Sounds

$150.48 $90.29

6K4 Tube Preamplifier Amplifier HiFi Tube Preamp Audio Amp Home Theater Assembly

$19.35 $11.61

2 Mullard E88CC 6922 Test low but GOOD Philips made D-geter 7L1 𝛥8G Vacuum Tube

$149.64 $89.79

New Gain Tested Svetlana 12AX7 / ECC83 Vacuum Tube

$32.35 $19.41

E88CC-TK (6922) Black Diamond Series Vacuum Tube w/ Balanced Triodes

$70.41 $42.24

6J6 VACUUM TUBE or 6J6A Various Brand Tested as NOS ( PRICE FOR ONE TUBE )

$1.72 $1.03

Genalex Gold Lion 12AT7/ECC81 Gold Pin Preamp Tube (5-pack) Bundle

$254.98 $152.99

Nobsound E6 Direct Heated Vacuum Tube Class A Stereo Audio Pre-Amplifier NEW

$44.44 $26.67

5814A A GE Quad JG5814A/ 12AU7A ECC82 Preamp Amp VTG Radio Tested Good Mil Spec.

$31.68 $19.01

Pair USSR 6AS7G 6Н5С 6N5S NOS NIB Life Test Excellent, Emission Over 100% Tube

$42.64 $25.59

Tube Preamp for Record Player Phono Pre-amp Phonograph Amplifier

$19.76 $11.86

12AX7 Style Vacuum Tube White LED Night Light Ham Radio TV Guitar Amplifier

$26.36 $15.82

NIB quartet JJ ECC83S / 12AX7 PREAMP VACUUM TUBES ***FREE SHIPPING***

$87.12 $52.28

API Select T12 Tube Mic Preamplifier

$1835.02 $1101.02

Vintage RCA 12AX7A Preamp Tube ECC83 Valve 12AX7 #117

$43.99 $26.39

Pre-amp for Home Theater Phono Preamp Turntable Tube Amplifier

$20.15 $12.09

1- 12SX7GT NOS Rare Gray Smoked Glass Brown Base Audio Tube (12sn7)

$95.04 $57.03

5 Vintage RCA 6CQ8 Triode Tetrode Sharp Cutoff Audio Vacuum Tube Valve- Bangyba

$66.53 $39.92

E180CC MULLARD 12AT7 VINTAGE VACUUM TUBE NOS NIB

$70.4 $42.24

iFi Audio iCAN Signature Tube Hybrid Headphone Amplifier

$1407.12 $844.28

6K4 Tube Preamplifier Amplifier Adjustable Audio Preamplifier Home Theater DIY

$19.22 $11.53

LUXMAN SQ-N150 Tube Integrated Amplifier Preamps 100V FastShipping New

$1759.82 $1055.89

Vacuum Electron Tube Valve Preamp Amplifier Board Headphone Amp Parts Musical HQ

$13.05 $7.83

1PC 6J1 Valve Pre-amp Tube PreAmplifier Kit Assembled Board Audio DIY Standpipe

$21.36 $12.82

McIntosh C22 stereo preamplifier replica model C22R AC100V

$3473.36 $2084.02

Vox AC15CC1 Tube Combo Guitar Amp w/ EL84 Power Section, Top Boost Preamp

$563.2 $337.92

6J1 Valve Pre-amp Tube PreAmplifier Kit Assembled Board Audio Musical FidelityCu

$18.19 $10.92

1 x Mazda 12AX7 ECC83 Mullard? England Test STRONG & BALANCED Triode Vacuum Tube

$45.76 $27.46

T9 Preamplifier 2x6E2 HiFi Electronic Tube MM/MC Turntable Microphone Amplifier

$85.4 $51.24

Peavey 6505 II 120W 2-channel Tube Head

$1320.0 $792.0

Tube Amplifier Preamp Preamplifier for Home Theater System Turntable

$27.44 $16.47

12AX7 ECC83 RCA Short Grey Plate O Getter Tested Strong Balanced Vacuum Tube

$42.64 $25.59

YAQIN MS-23B Tube Phono Stage Pre-AMP MM RIAA Turntable HiFi Stereo Preamplif O

$199.76 $119.86

Matched Pair NOS GE 5* 6829 Twin Triode Tubes for Amps/PreAmps Hickok Tested

$52.8 $31.68

GE JAN 5654W 6AK5 Vintage Gray Plate Vacuum Tubes (NOS sleeve of five)

$26.4 $15.84

Pair RCA 6SN7GTB Tested Good Tube

$10.96 $6.58

Tube Amplifier Bluetooth Stereo Headphone Preamplifier USB DAC Decoder T10 Tubes

$320.32 $192.19

Closely Matched Lot of 3 (Trio) Electro-Harmonix EL34 6CA7 Tested Good Tube

$60.24 $36.15

e188cc tube pair Siemens nos valve Gold Pins preamp vintage stereo 7308 cca s

$836.0 $501.6

ART USB Dual Pre Two Channel Preamplifier/Computer Interface (USBDUALPREPS)

$58.27 $34.96

NOS Gain Matched Quad (4) Voskhod Soviet 6N1P-EV / EB [6DJ8] Vacuum Tubes

$52.76 $31.66

Vacuum Pre-amp -Fi Stereo Preamp Home Theater DIY Preamp Amplifier Board

$19.36 $11.62

Brand New Gain Matched Trio (3) Electro-Harmonix 6SN7 Vacuum Tubes

$98.94 $59.37

Vintage Delta 12AU7/ECC82/5814 Preamp Vacuum Tube Valve- Bangybang.tube

$29.57 $17.75

Tube-T5C HiFi Vacuum Tube Preamp Bluetooth 5.0 Receiver USB DAC Headphone Amp ts

$81.4 $48.84

12AX7 VACUUM TUBE VINTAGE USA MADE

$17.61 $10.56

Supro 1696RTH Black Magick Reverb 25 Watt Tube Guitar Head Amplifier

$1319.12 $791.48

PRS HDRX 50-watt Amplifier Head Black

$1899.92 $1139.96

FOSI AUDIO BOX X3 5654W Fono Vacuum tube preamplifier MM Turntable for Fonograph

$72.94 $43.77

RCA 6SN7GTB Black Plates DUAL TRIODE Audio Amplifier VACUUM TUBE Tested Q.1201-D

$17.56 $10.54

NEW 6J1P Valve Vacuum Tube for PreAmplifier Board Headphone Amplifier Module

$1.9 $1.14

Preamp Stereo Audio HiFi Tube Preamplifier 12AU7 12AX7 6Z4 Vacuum Tube 110V/220V

$326.48 $195.89

Vintage Remington 5963/12AU7/ECC83 Preamp Vacuum Tube Valve- Bangybang.tube

$22.18 $13.31

40KG6A PL519 LifeTest Excellent Emission Over 100% Tube

$21.52 $12.91

Lot of 3 Tube 6W4GT Mix Brand Tested Amp Preamp Radio Valve Vacuum Tube

$4.8 $2.88

RCA 6T8 EABC 80 6AK8 VACUUM TUBE NOS NIB Valvola Röhre Valve SINGLE

$6.94 $4.17

Raytheon 2A3 Vintage Black Plate Audio Vacuum Tube (NOS, strong test results)

$140.81 $84.48

Sylvania 6SN7GT VT-231 NOS NIB Tested Strong Balanced Tube

$86.64 $51.99

RCA 12AX7 ECC83 Long Grey Plate Angled Square Getter Test Like NOS Balanced Tube

$33.84 $20.31

Closely Matched Pair Cunningham 171-A & NU NX-171A Test Like NOS Tube

$86.64 $51.99

Sylvania 6CW4 6DS4 Nuvistor NOS NIB Life Test Excellent Emission Over 100% Tube

$15.36 $9.22

Lot of 2 Tube Matched Raytheon+Tung-Sol 6SN7GTB Life Test Excellent Tube

$39.12 $23.47

Mini Vacuum Tube Headphone Amplifier Desktop Audio Preamp for Home Stereo System

$29.03 $17.42

PJ.MIAOLAI M2 6J1 Treble Bass HiFi Lossless Tube Pre-amplifier

$52.8 $31.68

UESUGI Phono equalizer amplifier equipped with vacuum tube stereo preamplifier

$6600.0 $3960.0

Vacuum Pre-amp for Hifi System Turntable Preamp Amplifier Board

$29.35 $17.61

Matched Balanced Pair Sylvania 12AU7A / ECC82 Tubes Test NOS+ - TV7 Tested

$28.16 $16.9

1EA. TUNG-SOL REISSUE 12AX7 / ECC83 PREAMP VACUUM TUBE BRAND NEW IN BOX

$41.32 $24.79

Closely Matched Pair Electro-Harmonix KT88 6550 NOS NIB Same Date Tested Tube

$100.72 $60.43

Budda Superdrive V20 112 Combo Amp w/ Footswitch (20 Watt - Made In USA)

$748.0 $448.8

Closely Matched Pair RCA JAN-CRC 6C8G NOS NIB Tested Strong Balanced Tube

$51.44 $30.87

Mini Vacuum Tube Headphone Amplifier Desktop Audio Preamp for Home Stereo System

$32.53 $19.52

Phono Preamp for Turntable Stereo Tube Amplifier High Fidelity

$28.74 $17.24

Sylvania 6SN7GTB Chrome Dome Angled T Plate Tubes *PLATINUM MATCHED on AT1000*

$52.51 $31.51

RCA 6SN7GTA Black Tested Strong Like NOS Balanced Tube

$10.96 $6.58

TUBE-T1 PLUS Preamplifier USB and Bluetooth 5.0 with Treble and Bass Adjustment

$46.03 $27.62

Budda® Superdrive V20 112 Combo Amp w/ Footswitch (20 Watt - Made In USA)

$1144.0 $686.4

Takamine Tdp400Kv N Equipped With Ctp-3 Tdp Using A Vacuum Tube In The Preamplif

$1117.51 $670.51