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

$89.95 $53.97

Brand New In Box Current MatchedQuad (4) Electro-Harmonix KT88 Vacuum Tubes

$273.62 $164.18

Homemade Tube Preamplifier Used F/S

$810.48 $486.29

Nobsound NS-10P Vacuum Tube Preamp Tone Control Bass Audio Preamplifier

$41.36 $24.82

Siemens 12AX7 ECC83 Germany Preamp Tube Low Noise Pair.

$88.0 $52.8

Groove Tubes Gold Series GT-12AT7 Preamp Tube

$25.52 $15.32

Dilvpoetry Tube-01 6J1 Vacuum Tube Buffer Preamp Amplifier HiFi Preamplifier

$26.45 $15.87

GE 12AX7 Long Plate Halo Getter Preamp Tubes Low Noise Pair.

$48.4 $29.04

Finished HIFI MM RIAA Turntable preamp Ear834 12AX7 Tube Phono Amplifier

$203.28 $121.97

Matched Pair Tung Sol 12AX7 / ECC83 pre-amp tubes, Brand NEW in Box !

$38.85 $23.31

HIFI 6N11 Tube preamp base on Musical Fidelity X-10D line + Power supply L7-13

$110.0 $66.0

PASS KORG B1 LINE STAGE PREAMP NU TUBE (no indicator)

$396.0 $237.6

3x 6L6gc Valves Tubes For Preamp Radio Hifi Amplifier

$8.58 $5.15

Douk Audio P1 Vacuum Tube Preamp/Headphone Amplifier/Bt/Dac

$155.62 $93.37

HiFi Remote Version Tube Preamp Stereo Preamplifier Refer CAT SL-1 +4 Ways Input

$233.2 $139.92

ef12 tube Telefunken Germany preamp tubes steel valve klangfilm v69 neumann gold

$175.12 $105.08

MINT 1997 Rocktron Gainiac 2 Channel Tube Guitar Rackmount Preamp!

$176.0 $105.6

Home Pre Amp 2 Tube Headphone Mic Connector Box w 1 12AX7 Mullard Tube Push Pull

$88.0 $52.8

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

$83.6 $50.16

GE 12AX7 Long Plate D Rivet Getter Preamp Tube Low Noise Pair.

$79.2 $47.52

6SL7GT RCA Red Letter Audio Receiver Pre-Amp Vacuum Tubes 1960s Tested Pair

$26.4 $15.84

Cayin MT-35 mk2 Plus Audiophile Vacuum Tube Integrated Amplifier w Bluetooth

$658.24 $394.95

GE JG-5751 Triple Mica Black Plate Low Noise Preamp Tube

$35.21 $21.12

Manley Neoclassic 300B Vacuum Tube Preamplifier, Original Box

$3783.12 $2269.88

Bellari Tube Phono Preamp VP 130 Stereo Headphone Player Extra Tube Sovtek Tung

$176.0 $105.6

CRANE SONG SYREN 500 SERIES TUBE PREAMP

$858.0 $514.8

Tube Preamp Buffalo (Knucklehead)

$184.8 $110.89

1950's The Fisher Series Eighty 80-T Tube Preamp and Tuner

$264.0 $158.4

DPE Pedals Fission F2B Tube Preamp - Based On Alembic F2b Preamp

$315.92 $189.56

Douk Audio X1 JAN5654 Vacuum Tube Power Amplifier Bluetooth 5.0 Phono Preamp SUB

$123.2 $73.92

Lot of 7 12AU7 Preamp Amplifier Vacuum Tubes - Tested Good on TV-7A

$28.8 $17.28

HiFi Vacuum Tube Preamp Bluetooth Receiver USB Music Player Headphone Amplifier

$61.6 $36.96

ART TUBEFIRE 8 CHANNEL TUBE MICROPHONE FIREWIRE PREAMP / INTERFACE

$242.0 $145.2

HiFi 12AU7 Tube Stereo Preamplifier Home Audio Preamp Refer JADIS JP200 Circuit

$136.4 $81.84

Monarchy Audio M24 Tube DAC/Preamp

$1000.46 $600.28

Tube Preamp Vacuum Tube Valve Preamp Phono Preamp For Turntable

$19.94 $11.96

PCC88 PHILIPS , Vintage tube , 1pcs

$35.21 $21.12

Vintage Calrad Model PRE Pre-Amplifier 105-125V 4 W at 110V Made in Japan -USED

$44.0 $26.4

New HiFi 6H3 tube Preamplifier machine 6H3 tube Amplifier with Matisse Circuit

$123.2 $73.92

Hiend MM Riaa Tube Phono Amplifier Base On Ear834 Turntables Preamp (B6-70)

$158.4 $95.04

Silver Jubilee tube floor preamp

$272.8 $163.68

DIY kits 6N3 Vacuum Tube PreAmplifier SRPP Board Fit for 5670

$24.78 $14.87

DC (DC12V) Car & Home 6N4 (12AX7) Horseshoes Bile Preamp Electronic Tube Preamp

$73.63 $44.18

Dynaco PAS-2 Tube Preamp

$352.0 $211.2

Mozztronics BP-8 Tube Bass Preamp

$182.5 $109.5

ADA MB-1 Midi Tube Rackmount Programmable Bass Preamp Head

$594.0 $356.4

Audio Research PH9 Audiophile Tube Phono Preamplifier Preamp - Excellent

$4835.61 $2901.36

Sound Valves VTP-100 Dynaco PAS-3 II Stereo Tube Preamplifier w/ Phono Near Mint

$968.0 $580.8

J-FET + Tube Preamp Preamplifier PCB Board Fit for 12AX7 / ECC83 Low Distortion

$5.72 $3.44

TUNG SOL 1st PRODUCTION BLACK THIN PLATE SQUARE GETTER TUBE

$87.56 $52.54

NEW PreSonus TUBEPRE - Mic Tube Preamplifier, Backlit VU Meter (Factory Refurb)

$89.07 $53.44

Presonus Bluetube DP V2 2 Channel Tube Mic Pre-Amp DP2 Tube Drive Control

$197.96 $118.78

Assembled 12AX7/12AU7 tube pream board Pre-amplifier Board AMP Classic circuit

$30.8 $18.48

HIFI Bluetooth Tube Preamp USB DAC SPDIF D/A Converter Desk Headphone Amp DSD256

$176.0 $105.6

Audio Preamplifier Adjustable Preamp Tube Board DIY Kit for Amplifier Speaker

$20.58 $12.35

Sylvania 6SN7WGT NOS NIB Tested Strong Balanced Tube

$77.84 $46.71

ART Tube MP USB Project Series Professional USB High Output Tube Mic Preamp

$59.84 $35.91

Heathkit Stereo Tube Preamplifier SP2 POWERS ON UNTESTED

$396.0 $237.6

Vacuum Tube, ECC803 / 12AX7, JJ Electronics, Longer Plate, Standard Pins, Preamp

$20.2 $12.12

Art Dual MP, Two Channel Tube Microphone Preamplifier - 1U - Tested - PreOwned

$139.38 $83.63

Valvo ECC81 / 12AT7 Low Noise Preamp Tube.

$39.6 $23.76

Douk Audio Hi-Fi Vacuum Tube Preamp Home Stereo System Pre-Amplifier DIY KIT

$170.36 $102.22

WZ-17 Tube Pre-stage High-Voltage Regulator Power Supply Board Ma7 Power Supply

$23.98 $14.39

Huge Lot Of RCA Tung Sol Ge Tubes NOS Vintage Parts Read Description

$26.4 $15.84

(2) RCA 6SN7GTB AUDIO PREAMPLIFIER TUBES - TV7 TESTED - BALANCED - MATCHING

$23.76 $14.26

GT Groove Tubes Electronic Tube Pre-Amp for Bass

$501.6 $300.96

Lot 5 Box Valves Vintage Radio Audio Radiotron

$8.58 $5.15

7025 ECC83 / 12AX7 TAD HIGH GRADE TUBE. USED & TESTED.

$22.0 $13.2

Vintage RCA 12AU7A PLATINUM PLUS GRADE Clear Top Preamp Tube = (6189 5814 7316)

$19.32 $11.59

OLSON 7189 32 WATT 12AX7 TRIODE TUBE PHONO MIX TAPE PREAMPLIFIER POWER AMPLIFIER

$439.12 $263.48

TASCAM TA-1VP Vocal Processor with Antares Auto-Tune LN

$386.43 $231.86

Schiit Freya Plus

$566.61 $339.97

HiFi Vacuum Tube Phono Stage Preamp Turntable Amplifier for MM Record Player

$162.62 $97.57

Telefunken ECC81 12AT7 O-getter ◇ Bottom Matched Pair - Berlin '55 - Strong

$139.38 $83.63

1 x Excellent Telefunken ECC81 12AT7 Diamond Bottom Berlin 60's Amplitrex 94/94%

$32.56 $19.54

VTG Magnecord Magnecorder PT6A Tube Magnetic Reel to Reel Tape Recorder

$8.8 $5.28

ECC82 12AU7 Philips Miniwatt röhre Gf8 mid. 60s matched quad,tested Roetest

$166.32 $99.8

NOS GE JG 12AY7 Amperex 12AX7A RCA 12AT7 AFLC 12AX7WA JTL 2C51 mixed lot

$73.05 $43.83

Western Electric 417A 5842 Square Getter Preamp Tube Strong

$44.0 $26.4

Vintage McIntosh C20 Stereo Tube / telefunken/ Preamplifier works ( see video )

$1936.0 $1161.6

Tube Preamp Vacuum Electron Tube Valve Preamp Phono Preamp For Turntable

$19.97 $11.99

Mini Vacuum Tube Pre-amplifier Stereo Home Preamp HiFi Desktop Headphone Amp

$49.63 $29.78

2024 PRS DGT 15 David Grissom 15-watt Tube Head Blonde Tolex

$747.12 $448.28

HiFi 7-Band Tube EQ Equalizer Stereo Balanced XLR / RCA Preamp for Home Speaker

$114.4 $68.64

Demeter Amplification VTBP-201 Tube Bass Preamp Preamplifier Vintage Rare

$550.0 $330.0

GE Model MF-1 Tube Preamplifier

$176.0 $105.6

V1 pre-amp 12AX7A Tube, Ampeg SVPPRO, Low AC hum

$17.61 $10.56

Bogner Fish All Tube Preamp Vintage Rare 1990s

$6028.0 $3616.8

High Voltage Vacuum Tube Preamplifier MINI 2J27S Heaterless Tube Preamp

$52.8 $31.68

RCA 6AU6 A VACUUM TUBE SUPER SWEET TONE MATCHED PAIR SWEET TONE 04

$7.82 $4.69

GE 5691 Red Base Low Noise Preamp Tube

$52.8 $31.68

FISHER 80-C Master Audio Control Tube Preamplifier - Works & Looks Great

$641.52 $384.92

ZERO-ZONE HIFI MM RIAA Turntable Preamp Ear834 12AX7 Tube Phono Amplifier

$175.12 $105.08

HIFI Vacuum Tube Headphone Amplifier Stereo Audio Preamp Mini Amp for Headsets

$44.0 $26.4

DIY 6J1 Tube Preamp Kit For Clean Music Filtration SNQ

$13.76 $8.26

ADA MP 1 TUBE PREAMP USA

$594.0 $356.4

ART TUBEMIX Five Channel Mixer with USB and Assignable 12AX7 Tube OPEN BOX

$175.1 $105.06

Lot 1 Valves Vintage Hifi Radio Audio UnTested Rare

$8.58 $5.15

ART Tube MP Project Series Tube Microphone/Instrument Preamplifier/Preamp

$88.0 $52.8

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

$215.6 $129.36