AIYIMA T8 Bluetooth5.0 TUBE-6N3 Digital Tube Vacuum Tube Preamp Headphon [New!!]

$149.6 $89.76

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

$52.96 $31.78

Brand New Matched Quad (4) Mullard Reissue GZ34 / 5AR4 Vacuum Tubes

$224.67 $134.8

Vizion Valve Extreme Vacuum Tube Overdrive Preamplifier

$285.16 $171.1

Vintage Hammond Organ AO-42 Pre Amp Chassis 12AX7 12AU7 Vacuum Tubes MAKE OFFER!

$30.76 $18.46

MAXI PREAMP II GAIN MATCHED PAIR JJ ECC803S / 12AX7 LONG PLATE TUBES NEW IN BOX

$70.36 $42.22

HIFI Tube Preamp with Bluetooth 5.0 Speaker Receiver Stereo Audio Amp USB Player

$33.44 $20.07

Brand New Gain Tested Psvane 12AU7-S ECC82 Gold Pins Art Series Vacuum Tube

$42.82 $25.69

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

$7.92 $4.75

Rare 1965 GoldPin 7308 Sylvania USA ~ E188CC SmoothLiquidDetail ~ 6922 E88CC Sub

$307.12 $184.28

Universal Audio 710 Twin-Finity Microphone Preamp

$699.6 $419.76

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

$28.99 $17.4

Pre-amp for Home Theater Preamplifier for Home Theater System Tube Amplifier

$22.88 $13.73

BEYOND / TUBE BOOSTER

$182.34 $109.41

TUBE-03MKII HiFi 2.0 Headphone Pre Amplifier DAC Tube 6K4/5654W Bluetooth 5.0

$72.86 $43.72

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

$52.51 $31.51

Gain Matched Quad (4) Sovtek 12AX7WB 7025 ECC83 Vacuum Tubes - Brand New

$123.23 $73.94

Lot of 2 22JU6 22JF6 22KM6 LifeTest Excellent Emission Over 100% Tube

$6.56 $3.94

rolls Tube PREAMPLIFIER, Black (PA555)

$167.2 $100.32

JJ 5751 Preamp Tube Gold Pin

$35.16 $21.1

Closely Matched Pair Tung-Sol Missed Key+Westinghouse 5881 6L6WGB Tested Tube

$33.84 $20.31

MACTONE XX-550 Vacuum tube Pre-amp Vacuum Tube Line

$7911.2 $4746.72

12AX7B / ECC83 Preamp Vacuum Tubes Guitar Replacement Assembly,

$15.46 $9.28

Supro 1820RTB Delta King 10 5-Watt 1x10" Tube Combo Amp Tweed & Black - Open Box

$431.2 $258.72

Vintage Penta Labs 12AU7/ECC83/5814 Preamp Vacuum Tube Valve- Bangybang.tube

$29.57 $17.75

ART TPS II - 2 Channel Tube Microphone Preamplifier

$255.2 $153.12

Lot of 8 6AW8A Tested Tube

$21.52 $12.91

1 x NOS 1968 Mullard Gt Brit E88CC 6922 ~ Grail WarmAudio Preamp/Mic Rode K2NTK

$307.12 $184.28

Brand New In Box Matched Quad (4) 6BM8 ECL82 Electro-Harmonix Vacuum Tubes

$148.93 $89.36

Brand New Gain Matched Pair (2) Tung-Sol Reissue 6EU7 Vacuum Tubes

$76.87 $46.13

Western Electric Tube 409A 6AS6 Pre-amp Tube USA 1963-64 Test GOOD

$15.8 $9.48

NOS Siemens Halske ECC82 12AU7 Test GOOD Chrome Nickel Plates Triode Preamp Tube

$77.8 $46.68

Western Electric 6AS6 Audio Receiver Preamplifier Vacuum Tubes Tested Pair

$30.8 $18.48

TL Audio Indigo Series mono ch preamp with eq and comp Quality UK Valve Preamp.

$314.66 $188.8

Tube Preamp DIY Part Board Preamplifier Pre-amp for Hifi System

$19.8 $11.88

Supro 1970RK Keeley Custom 25-Watt 1x10" Tube Combo Amp - Open Box

$616.0 $369.6

Bellarir MP 105

$66.0 $39.6

Ei Made Tesla 12AX7 82/80 Gm Tested Audio Preamp Vacuum Tube Amplifier Part Vgc

$39.6 $23.76

Matched Pair Sylvania 12AU7/ECC83/5814 Preamp Vacuum Tube Valve- Bangybang.tube

$103.49 $62.1

Finished HiFi JJ ECC83S+ JJ ECC82 + 6Z4 Classic Stereo Vacuum Tube Preamplifier

$297.44 $178.47

Coronado 6SL7 GT Vintage Vacuum Tube Radio Audio Amplifier Preamp Tested NOS

$22.0 $13.2

EF804S Telefunken NOS NIB Sealed in Cellophane Low Noise Microphone Neumann

$219.56 $131.74

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

$19.55 $11.73

HiFi CAT SL-1 Signature Preamp Tube Stereo Tube Preamplifier Board Kit

$30.8 $18.48

6BK5 Vacuum Tube Various Brand Tested ( price is for one )

$0.88 $0.53

Electro Harmonix 12AX7EH Preamp Tube

$27.28 $16.37

RCA 12AU7A Preamp Tube ** 4 PIECES ** #1

$39.6 $23.76

PreSonus Studio Channel Strip w/ PEQ/Compressor/Tube Preamp , Preowned, Tested.

$220.0 $132.0

HiFi Vacuum Tube Preamp Bluetooth 5.0 USB DAC Stereo Headphone Amplifier APTX

$80.6 $48.36

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

$19.55 $11.73

1 Dynakit PAS2 Preamp-stereo tube preamp -#2

$374.0 $224.4

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

$32.53 $19.52

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

$130.64 $78.39

XDUOO MT-603 12AU7 Tube Preamplifier with Multiple Choice Audio Inputs Pre-amp

$95.92 $57.56

6J1 AC12V Valve Pre-amp Tube PreAmplifier Board Headphone Amplifier Acrylic Case

$4.83 $2.9

6J1 Headphone Amplifier Board Kit for 6AK5 6AU6 5654 Tube Preamp Vacuum Electron

$16.56 $9.94

Vintage Sylvania 6AW8A Western 349a preamp Triode Pentode Audio Vacuum Tube Val

$22.18 $13.31

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

$197.12 $118.28

JFET input 12AX7 hybrid tube stereo pre-amplifier bare board finesse sound !

$13.2 $7.92

ART TPSII Tube Preamp System Processor

$255.2 $153.12

Synergy Ecstasy 2-channel Preamp Module

$299.2 $179.52

Genalex Gold Lion 12AX7/ECC83 Gold Pin Preamp Tube (3-pack) Bundle

$152.99 $91.8

AIYIMA Tube T3 HiFi Tube MM Phono Preamp for Turntable MM Phonograph Stereo A...

$75.29 $45.18

Closely Matched Pair RCA 5V4G Tested Good Balanced Tube

$25.04 $15.03

1 RCA Electron Tube 6AT6 NOS Radio Audio Pre-amp Vacuum Tube NEW

$14.08 $8.45

Vintage Hammond Mullard EF86 / 6267 Amplifier Preamp Tube Smooth Plate #182

$35.01 $21.01

A9 HiFi Tube Preamp HiFi Headphone Amplifier Bluetooth 5.0 Receiver FREE

$42.37 $25.42

SUCA AUDIO TUBE-M1 Tube Preamplifier Bluetooth 5.0 Headphone Amplifier 6K4 Tube

$62.48 $37.49

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

$66.86 $40.12

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

$66.79 $40.07

Vintage Daystrom 12AU7A/ECC83/5814 Preamp Vacuum Tube Valve- Bangybang.tube

$29.57 $17.75

Hifi Sound System Audio Preamp Pre-amp for Home Theater Tube Amplifier

$19.62 $11.77

6- Vintage Amperex 7788 Audio Vacuum Tubes ~ 3 Gold Pin ~ NOS Sleeve ~ Test VG

$86.94 $52.17

Audio Research SP10 (Audiophile Hifi Tube Stereo Preamplifier w Power Supply)

$4135.12 $2481.08

Tube Preamp Phono Preamp for Turntable Tube Board Preamplifier Tube Amplifier

$20.14 $12.09

Electron Vacuum Tube 6N2-J Valve Replace 6H2 Pairing Upgrade For Audio Amplifier

$32.46 $19.48

Ken Rad Type 80 Vacuum Tube VT80 Vintage Radios R-Players Juke Box Amateur Ham.

$11.44 $6.86

iFi Pro iCAN Tube/Solid-State Headphone Amplifier/Preamplifier

$1210.0 $726.0

JJ Tubes Standard set for Mesa Boogie Rectifier Mini 25 (New)

$114.4 $68.64

MULLARD 12AX7/ECC83 * DRIVER TUBE

$29.22 $17.53

Lot of 5 Tube Raytheon 6AU6A Same Date NOS NIB Life Test Excellent Tube

$25.04 $15.03

4 Amperex 6DJ8 ECC88 Made In Holland Preamp Vacuum Tubes TV7 Tested Strg

$44.0 $26.4

NOS Rare DGetter NEC Nippon Japan 6BQ5 EL84 Preamp Audio Tube ~ Holy Grail Tone

$171.6 $102.96

1 x old USA made 12AU7 / ECC82 preamp tube, Tested Good ! (1)

$7.5 $4.5

Brand New Gain Tested Electro-Harmonix 6SN7 Vacuum Tube

$35.35 $21.21

12AU7 Tung Sol for Cap Computer Audio Receiver Vacuum Tubes Tested Pair

$22.0 $13.2

PreSonus TUBEPre v1 Vacuum Tube Microphone Preamp V1 UNTESTED - Box Only

$51.92 $31.16

SUCA AUDIO DAC-T1 Tube Preamp Hifi Bluetooth 5.0 DAC Headphone Amp Single-Ended

$129.95 $77.97

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

$40.11 $24.07

RCA 6X8A Vacuum Tube USA Vintage Guitar ? pre amp antique parts radio audio

$6.91 $4.15

Pair RCA 6F4 NOS NIB Tube

$4.8 $2.88

3 Sylvania Electron Tube 6AK5 EF95 NOS Radio Audio Pre-amp Vacuum Tubes NEW

$17.6 $10.56

ART Tube MP Project Series Low Noise High Output Professional Microphone Preamp

$128.48 $77.09

RCA 6SN7GT Smoked Grey Glass Tested Strong Like NOS Balanced Tube

$51.44 $30.87

6SK7GT JAN CNU VT-117A National Union Audio Receiver Preamp Vacuum Tubes Tested

$24.64 $14.78

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

$313.5 $188.1

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

$32.52 $19.51

Summit Audio TD-100 Tube Instrument Preamp and Direct Box from JAPAN

$606.32 $363.79

FX-AUDIO TUBE-06 Preamplifier Home Audio Tube 6N3 Input Adjustment DC12V/1A

$103.92 $62.36

Finished HiFi EL34-B Vacuum Tube Amplifier Class A Single-ended Stereo Power Amp

$311.02 $186.62