Brand New In Box Current Tested Electro-Harmonix KT90 Vacuum Tube

$77.34 $46.41

Brand New Current Matched Pair (2) Electro-Harmonix 6L6GC Vacuum Tubes

$77.52 $46.51

220V BRZHIFI PAP-711 Field Effect Tube Class A Preamplifier Power Amplifier ty23

$305.42 $183.25

Nobsound P2 Mini Bluetooth 5.0 Vacuum Tube Preamp HiFi USB Player Stereo Audio H

$74.36 $44.62

Two Notes Le Crunch 2-channel British Tones Tube Preamp Pedal Used Tested

$216.48 $129.89

6J1 Valve Preamp, Vacuum Electrom Tube Preamp Valve Preamp Amplifier Board Au...

$24.25 $14.55

Amperex 12AU7 ECC82 Balanced Very Strong Tests NOS+ Vacuum Tube - TV7 Tested

$24.64 $14.79

NEW Preamp Stereo Audio HiFi Tube Preamplifier 12AU7 12AX7 6Z4 Vacuum Tube

$212.07 $127.24

PreSonus Studio Channel 1-Channel Vacuum-Tube Channel Strip

$316.8 $190.08

Two Notes Audio Engineering Le Crunch Preamp Pedal

$290.4 $174.24

12AY3A Vacuum Tube Various Brand Tested ( price is for one )

$0.88 $0.53

6cg7 tube nos Fivre italy long plate valve preamp tubes 6fq7 vt99 6f8g 7n7 6sn7

$220.0 $132.0

PJ MIAOLAI D2 Mini Electronic Tube Headphone Amplifier HiFi Preamplifier

$21.33 $12.8

BRZHIFI PAP-711 Field Effect Tube Class A Preamplifier 220V HiFi Power Amplifier

$321.47 $192.88

Nobsound E6 Direct Heated Vacuum Tube Class A Stereo Audio Pre-Amplifier 2024 US

$44.43 $26.66

NOS Matched Pair 12SN7GT Sylvania For Zenith Chrome Top Black Plates Tall Boy

$87.12 $52.28

Matched Pair 12AT7/ECC81 Dual Triode Guitar Amp. Audio Vacuum Tube Valve- Bangyb

$88.71 $53.23

HiFi Vacuum Preamp Tube Stereo 4-way Audio Switcher Box Desktop Headphone Amp US

$66.75 $40.05

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

$87.12 $52.28

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

$20.52 $12.31

Hifi Sound System Pre-amp for Record Player Tube Amplifier Turntable

$19.8 $11.88

JJ 12AY7 / 6072A Gain Tested Vacuum Tube - Brand New

$30.49 $18.29

New MU-603 12AU7 Tube Bluetooth 5.1 Aptx HD ES9018K2M Decoder Hi-Res Pre-amp

$170.92 $102.55

5814A A GE Trio 12AU7A Preamp Amp VTG Radio Tested Good.

$23.76 $14.26

Vintage Shield Ridge Plate 12AU7A/ECC83 Preamp Vacuum Tube Valve- Bangybang.tube

$33.27 $19.96

Pre-amp for Turntable Preamplifier Home Theater System Tube

$18.61 $11.17

DIY Headphone Amplifier Kit for Tube Preamp 6J1 Vacuum Electron Preamp Tube NEW

$14.88 $8.93

Closely Matched Pair GE 6550A Tested Strong Tube

$157.04 $94.23

New Gain Matched Sextet 6 pcs Psvane CV181-T MKII MK II Vacuum Tubes USA Seller

$560.96 $336.58

Hafler Vacuum Tube Midi Preamp Dedicated Foot Switch Instruction Manual Step Up

$396.04 $237.63

Guitar tube (valve) amplifier - head, Variant brand

$439.12 $263.48

EL34 Single-ended Vacuum Tube Amplifier Bluetooth USB Lossless Electronic Amp

$389.58 $233.75

Sylvania 12AT7 Tube Vintage Short Black Plate Used Audio Preamp Amplifier Vacuum

$14.52 $8.72

5 Pcs NOS Raytheon 6CY5 - audio radio Preamp Tubes NIB

$13.2 $7.92

Closely Matched Pair Sylvania 6A3 Label RCA Same Date NOS LIFE TEST Great Tube

$148.24 $88.95

Sylvania 6JN6 Life Test Excellent Emission Over 100% Tube

$6.56 $3.94

Avalon VT-737SP W/Baby Face Mod

$1459.92 $875.96

Preamplifier for Home Theater System Board Pre-amp Turntable

$19.36 $11.62

Matched Pair Vintage TungSol 12AU7A/ECC83/5814 Vacuum Audio Tube

$96.1 $57.66

2 Sylvania JAN CHS 6SL7GT VT-229 Black Plate Navy UTS ANCHOR Vacuum Tubes

$79.2 $47.52

6U8 Vacuum Tubes Tube Lot NOS Unbranded (Tested) McIntosh MX110 Preamp

$60.72 $36.44

Vintage STRONG Sylvania 12AU7A Gray Ribbed Plate Halo Getter Pre Amp Vacuum Tube

$17.61 $10.56

MELZ 6N9S 6SL7 50s USSR Metal Base Tested Strong Matched Sections Tube

$60.24 $36.15

RCA Type 83 Hanging Filament Black Plate Tested Strong Balanced Tube

$42.64 $25.59

2pcs Preamp Amplifier DIY Ceramic 7-Pin Valve Vacuum Tube Socket Panel PCB DIY

$4.05 $2.43

Vox AC15C1 15-Watt 1x12" Tube Combo Amp - Open Box

$642.4 $385.44

Universal Audio 710 Twin-Finity Microphone Preamp

$791.21 $474.73

Upgraded 6K4 Tube Preamplifier HiFi Tube Preamp Auido Amp Home Theater DIY

$19.74 $11.85

Closely Matched Pair Radiotron UX 171-A and Westinghouse 171A Test Like NOS Tube

$86.64 $51.99

FULL JJ REPLACEMENT TUBE SET FOR FENDER DELUXE REVERB II AMP 12AX7 12AT7 6V6

$175.96 $105.58

Genalex Gold Lion 12AX7/ECC83 Gold Pin Preamp Tube (2-pack) Bundle

$105.32 $63.2

6CN7 Vacuum Tube NOS NIB Various Brand QTY 1 Tube (More Available)

$0.88 $0.53

1 General Electric 6SN7GTA Vacuum Tube - 1953 Vintage Audio Twin Triode

$17.61 $10.56

RCA 5963 Vacuum tube

$8.81 $5.28

Loose Sylvania 6BC5 Seven Pin Miniature Pre-Amplifier Vacuum Tube Top Getter EUC

$1.76 $1.06

Bluetooth Preamplifier Tube Decoder T8 Tubes HIFI Audio Headphone Amplifiers 1Pc

$283.36 $170.02

Mullard 12AU6 HF94 NOS Life Test ExcellentTube

$10.96 $6.58

PJ MIAOLAI D2 Mini Electronic Tube Headphone Amplifier HiFi Preamplifier

$25.08 $15.05

Philco 12AU7 ECC82 1954 Black Plate Angled D-Getter Test Like NOS Balanced Tube

$77.84 $46.71

PCC189 7ES8 Philips Holland very quiet ECC88 6DJ8 6922 sub NOS NIB

$43.56 $26.14

Roberts Electronics AKAI M8 Stereo Reel To Reel Tube Preamp

$175.12 $105.08

Sylvania 40KG6A PL519 Label RCA LifeTest Excellent Emission Over 100% Tube

$25.04 $15.03

Tube Amplifier Preamp Board Pre-amp for Hifi System Turntable

$18.74 $11.25

Sylvania 7N7 (Other Base 6SN7GT 6CG7 6F8G) Life Test Great Closely Balanced Tube

$16.24 $9.75

RCA 25Z6GT NOS Vacuum Tube Vintage Radios Emerson Fada GE J Series RCA X Series.

$7.04 $4.22

MCINTOSH VACUUM TUBE PREAMPLIFIER C220 ORIGINAL ADVERTISEMENT/INFO SHEET J0718

$11.4 $6.84

HI-END Stereo ECC82 Vacuum Tube Preamplifier Base On U.S Rogue99 Preamp

$318.56 $191.14

2 General Electric 12SN7GTA Vacuum Tubes 1960's Vintage Audio Twin Triodes

$15.84 $9.51

SIEMENS CCa E88CC ONE NEW OLD STOCK NEW IN BOX TESTED GERMAN VINTAGE VALVE TUBE

$308.0 $184.8

Cetron JAN 5R4WGB Hanging Filament Black Plate Life Test Great Balanced Tube

$16.24 $9.75

3 Sylvania Electron Tube 6AK6 NOS Radio Audio Pre-amp Vacuum Tubes NEW

$17.6 $10.56

HIFI EL84 6BQ5 6P14 to 6V6 Vacuum Tube Adapter Converter Pre Amplifier New Part

$10.33 $6.2

Dyna Pas-3 Vacuum Tube Preamplifier / Control Amplifier Maintained Dynaco

$1158.08 $694.85

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

$29.57 $17.75

RCA Model 6EM7 Lot Of 2 Vintage Vacuum Tubes Valves Original Box Preamp Tubes

$28.6 $17.16

HiFi 6P1 Vacuum Tube Amplfier Class A Single-ended Power Amp with VU Meter

$314.33 $188.6

Hifi stereo 6j4+6p6p Class A tube preamplifier DIY Kit a full set

$156.65 $93.99

RCA 5879 tube NEW NOS NIB USA for Seeburg jukebox or audio amp preamp

$13.2 $7.92

Flagship Version Sixth Generation HiFi Electronic Tube Power Amplifier

$2131.81 $1279.09

2 Sylvania Electron Tube 6AW8A NOS Radio Audio Pre-amp Vacuum Tubes NEW

$17.6 $10.56

NEW XiangSheng 728A Vacuum Tube Preamplifier 12AT7 12AU7 6Z4 pre amplifier

$369.6 $221.77

GE Preamp Tube - 6SN7GTB

$15.84 $9.51

Matched Pair PSVANE WE205D / WE205D-L Western Electric Replica Vacuum Tube 205D

$474.32 $284.59

Mullard ECC88 6DJ8 NOS NIB Audio Receiver Guitar Vacuum Tube Tested

$43.12 $25.87

Vintage STRONG Sylvania 12AU7A Gray Ribbed Plate Halo Getter Pre Amp Vacuum Tube

$17.61 $10.56

PAIR BY PERFECT GAIN E188CC VALVO BY PHILIPS HEERLEN TESTED WITH ROETEST NOS

$351.12 $210.68

HiFi Turntable Phono Stage Preamp w/GE5654 Tube Audio Preamplifier Headphone USA

$96.78 $58.07

New Fx-Audio Silver Tube Preamp Line Amplifier Nfj Model Tube-01J Original Japan

$78.15 $46.89

AC12V 2 CH 6J1 Valve Pre-amp Tube Board Headphone Amplifier/Acrylic Case DIY Kit

$12.55 $7.53

1 x Rare NOS 1963 Raytheon 6DJ8 ECC88 ~ HolyGrail Mullard Copy ~ Rode K2 NTK Mic

$219.12 $131.48

RCA 5963 12AU7 ECC82 Tested Good Tube

$12.72 $7.63

5 Pcs NOS RCA 6AL5 / 6663 - audio radio Preamp Tubes NIB

$13.2 $7.92

Emotive Audio Caeli-LE Mono Tube Power Amplifiers

$6098.4 $3659.04

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

$21.29 $12.78

Brand New Gain Matched Pair (2) Electro-Harmonix 12BH7 Gold Pin Vacuum Tubes

$80.93 $48.56

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

$100.72 $60.43

Vintage RCA 6SL7 Vacuum Electron Preamp Amplifier Amp Radio Audio Tube Tested

$17.61 $10.56

Universal for Audio * SOLO/610 for Classic Vacuum Tube Mic Pre & DI Box Black

$1111.18 $666.71

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

$44.61 $26.77

Brand New In Box Electro-Harmonix 5U4GB 5U4 Vacuum Tube

$29.33 $17.6