Split Hifi Ground Grid (GG) Tube preamplifier ECC82 vacuum Tube preamp (B6-8)

$165.44 $99.27

ART TPS II 2-Channel Variable Impedance Tube Preamp Valve Voice

$255.2 $153.12

Matched Pair Mullard EF86/6267 High-Gain Pre-Amp Pentode Tubes TESTED!

$88.0 $52.8

Suzurando EL-880 MarkII Vacuum Tube Preamplifier Chassis Black USED from JAPAN

$262.24 $157.35

Bottlehead Quickie/PJCCS/Quicksand Amplifiers

$352.0 $211.2

Victory Sonics 2 Ch Apt-X BT Tube Preamp w/ Case and Tube - Used

$66.0 $39.6

Yaqin Tube Buffer SD-CD2 with upgraded tubes - mint in box!

$118.8 $71.28

Ampeg SVP PRO TUBE BASS GUITAR Rackmount PREAMP 5 TUBES RARE UNREAL WORKS READ

$580.8 $348.48

EL34 Vacuum Tube Amplifier Single-ended Class A HiFi Stereo Amp DIY Kit 10W x 2

$25.11 $15.07

Soldano Caswell X99 Guitar Preamp Midi Motorized Preamplifier - rare!

$7480.0 $4488.0

McIntosh C220 Tube Preamplifier w/Phono - Excellent

$2635.6 $1581.36

Vintage The Fisher Preamplifier PR-6 Tube Phono Tape Preamp AS IS

$70.36 $42.22

Diy Improved Version For Marantz 7 Electronic Tube Preamplifier With VU Meters

$334.4 $200.64

Dynavox Tube Preamp TPR-43 Silver with Phono MM/MC TPR43 Preamplifier

$187.58 $112.55

2020 New Finished 12AX7+12AU7+6Z4 Vacuum Tube Stereo Preamp With Bluetooth Input

$154.88 $92.93

ART Digital MPA-II 2-Channel Tube Microphone Preamp with A/D Conversion OPEN BOX

$361.66 $217.0

AIYIMA Upgraded 6K4 Tube Preamplifier Amplifiers HiFi Tube Preamp w Power Supply

$41.14 $24.69

Vintage Conn Organ Tone Generator Tube Preamplifier Part Number 70300-3

$31.42 $18.85

Tube Preamp Vacuum Electron Tube Valve Preamp Phono Preamp For Turntable

$18.39 $11.03

Tubesteader Eggnog Tweed Tube Preamp Pedal

$263.12 $157.88

Laney IRT-SLS Ironheart Watt Tube Pre Guitar Amplifer Head w/Footswitch Used JP

$553.75 $332.25

UNIVERSAL AUDIO 4-710D Tube & Solid State Tone Blending Mic Preamp

$1231.13 $738.68

Hi-End Upgraded Remote CARY-SLP90 Auido Preamp ECC82 Tube Stereo Preamplifier

$294.8 $176.88

Groove Tubes Gold Series GT-ECC83-S Preamp Tube

$26.4 $15.84

Guitar tube preamp based on JCM800

$272.8 $163.68

SYLVANIA 6SC7 Twin Triode High MU Preamp tube New Old Stock Tested Mint no box

$17.56 $10.54

Fosi Audio BOX X4 Tube Amplifier Phono Preamp for MM Turntable Phonograph 5654W

$28.16 $16.9

Working - ART Tube MP “personal Processor Series” Professional Tube Mic Preamp

$26.4 $15.84

Fosi Audio GR40 Tube Preamp w/DAC Stereo Headphone Amplifier for Active Speakers

$132.31 $79.39

PRT13A-BAL Remote Version Stereo Balance Tube Preamplifier Vacuum Tube Preamp

$347.6 $208.56

Universal Audio LA-610 Tube Channel Strip Mono tube channel strip

$1055.13 $633.08

NEW 6DJ8 tube preamplifier board CD player DAC audio decoder tube buffer

$81.85 $49.11

Pilot Pilotuner Model AF-825 Tube Tuner Preamp For Part Only

$131.12 $78.68

Douk Audio T4 Plus Vacuum Tube Phono Preamplifier MM MC Turntable Audio Preamp

$66.88 $40.13

Yaqin MC-100B KT88 Tube Integrated Amplifier

$527.12 $316.28

NOS NIB MULLARD 6679 12AT7 Low Noise Preamp Tube

$30.8 $18.48

Bellari VP130 Mk2 Vacuum Tube Preamp With Telefunken 12AX7 Tube & Upgraded Power

$176.0 $105.6

Black Plate 1958 Raytheon ECC82 Long Plate “D” Preamp Tubes 12AU7 Buy Per Tube

$17.61 $10.56

2019 latest 12AX7+12AU7 vacuum tube preamp Stereo audio HiFi tube preamplifier

$200.64 $120.39

12AX7A Amperex Red Tip Medical Grade Preamp2/TV7 Tested ( 1 ) Tube Lot

$220.0 $132.0

ART Tube MP Studio V3 Tube Mic Pre Preamp PRO AUDIO - NEW - PERFECT CIRCUIT

$123.2 $73.92

Friedman IR-X Dual Tube Preamp and DI

$352.0 $211.2

Pair of Electro-Harmonix 6922 EH Preamp Vacuum Tube

$52.72 $31.63

Electro-Harmonix 7025 EH Preamp Vacuum Tube

$24.6 $14.76

1PC Tube Preamp Vacuum Electron Tube Valve Preamp Phono Preamp For Turntable

$16.55 $9.93

HiFi Bluetooth 5.0 Vacuum Tube Preamp Stereo Receiver Headphone Amp USB Player

$57.9 $34.74

6SN7GTA Westinghouse Audio Receiver Guitar Preamplifier Vacuum Tubes Tested Pair

$21.12 $12.67

Behringer Ultragain Digital ADA8200 Audiophile 8 In/8 Out ADAT Audio Interface

$175.14 $105.09

ART Pro MPA II 2-channel Tube Microphone Preamp

$396.0 $237.6

Amina Tube Phono Stage Vintage Tube Radio Stereo Power Rare Used

$462.0 $277.2

Tube powered PreAmp 1952 HowTo build PLANS Preamplifier

$6.95 $4.17

HiFi Bluetooth Tube Preamp S/PDIF Speaker Receiver Audio Converter DAC APTX-HD

$121.44 $72.86

Guitar Tube Preamp Satan Ola's sound

$184.8 $110.89

NEW Tube Preamp Switch Power Supply Valve Amplifier Transformer Cattle 95V-265V

$20.23 $12.14

COINCIDENT LINE STATEMENT 101D Tube Preamplifier

$1495.12 $897.08

Bellari VP130 Tube Phono Preamp / Headphone amp

$132.0 $79.2

Douk Audio 7-band EQ Tube Equalizer Preamp RCA/XLR Pre-Amplifier for Speakers

$105.24 $63.15

Tube Preamp Phono Stage Audio Headphone Output for MM MC Turntable Record Player

$52.62 $31.57

ART USB Dual Pre Project Series 2 Channel Mic Preamp Amp

$44.0 $26.4

Sebatron vmp-4000e four channel valve preamp

$881.02 $528.61

6 12AX7/ECC83 Ei made w/Telefunken Tooling Smooth Plate Siemens Labeled Tested

$245.52 $147.32

1949 SYLVANIA 6SN7GT "2-Hole Bad Boy" Preamp Tube Pair

$74.8 $44.88

Counterpoint SA-5000A SA-5000 Hybrid Tube Preamplifier with Matching PSU Silver

$1628.0 $976.8

ART Solo MPA Multi-voice Tube Preamplifier

$264.0 $158.4

VHT Model AV-SP1-6 Special 6 Hand Wired 6-Watt Guitar Combo Tube Amplifier, 1x10

$261.88 $157.13

Dynaco PAS-3 Tube PreAmp Restoration Kit repair service rebuild fix

$127.6 $76.56

GATES GR-90 REMOTE COMPACT BROADCAST MICROPHONE TUBE PRE AMPLIFIER

$418.88 $251.33

1953 RCA 12AU7 PLATINUM PLUS GRADE Black Plate Preamp Tubes Matched Pair 90% NOS

$39.56 $23.74

ART Tube MP Project Series Prof Mic/Instrument Tube Preamp No Cord Untested

$33.42 $20.05

Groove Tubes The Brick Tube Mic Preamp

$572.0 $343.2

Electro-Harmonix 12AU7 EH Preamp Vacuum Tube

$19.32 $11.59

Vintage 1990's USA Ampeg SVT IIP Tube Bass Guitar Pre-amp Pre Amplifier

$440.0 $264.0

6J1 Adjustable DC12V Preamplifier Tube Fever HIFI Audio Bass Treble Volume Board

$31.59 $18.95

Bravo Audio "SOAP" Tube Booster True Bypass Warm Tube Driven Boost NICE! US SHIP

$44.26 $26.56

RCA Black Plate JRC-12AX7 Preamp Tube

$52.8 $31.68

Electro-Harmonix 12AY7 Preamp Vacuum Tube 6072A EH / 6072

$28.16 $16.9

Vintage Dynaco Dynakit Tube Amplifier Pre Amp

$264.0 $158.4

Vintage AURICON Tube Microphone Preamp Field Battery Unit Untested

$263.12 $157.88

Wavac PR-T1 Vacuum Tube Preamplifier - New in Sealed Box! - $40,000 MSRP

$7915.6 $4749.36

Behringer BTR2000 Racktuner & ART TPS II Preamplifier System-Combo

$148.54 $89.13

BOGNER ALCHEMIST 40W 2-Ch. 8Ω TUBE CUSTOM CAB DIGITAL FX GUITAR AMPLIFIER HEAD

$308.0 $184.8

ART Tube MP Studio V3 Mic Microphone Preamp AC Adapter Power Supply Charger Cord

$17.6 $10.56

ELEKIT Power Amplifier Vacuum Tube pre-amplifier assembling Kit TU-8500 White

$419.76 $251.86

Jolida JD-9 II Tube MC Phone pre-amp - immaculate condition

$518.33 $311.0

Friedman IR-J Jake E. Lee Signature Dual-tube Preamp open box

$448.8 $269.28

Schulmerich 6-16080 Large Tube Amplifier with Preamp

$396.0 $237.6

Vintage GEC UK EL34 Power Amplifier w/ Pre-Amp BRIMAR TUBE PARTRIDGE Transformer

$5719.12 $3431.48

ZENITH 6BQ5 TUBE AMP & TUBE PREAMP/TUNER

$131.96 $79.18

DIY PCB Board Tube PreAmp or SET PS Power Supply HV LV 50-400VDC 300B 6SN7 12AU7

$17.61 $10.56

Matched Pair Telefunken ECC81/12AT7 Tilt Getter Pre-Amp Dual Triode Tube TESTED!

$44.0 $26.4

ART Tube MP Project Series Tube Microphone/Instrument Preamp Preowned Condition.

$44.0 $26.4

ART Tube MP Tube Mic Preamp with 48V Phantom Power

$96.8 $58.08

Universal Audio 710TF Microphone Preamp

$528.0 $316.8

PreSonus TubePre v2 Audio Preamplifier w/Power Supply and Cable

$61.6 $36.96

APHEX CHANNEL RPA Tube Preamp & Eastrider Compressor

$528.0 $316.8

Hifi Classic Marantz 7 Circuit Tube Preamplifier Preamp Board / Kit 12AX7+12AU7

$14.08 $8.45

1952 SYLVANIA 6SN7GT Matching Pair Chrome-Dome 3-hole Bad Boy plate

$70.41 $42.24

DIY PCB plus Tube - Balanced (differential) preamp/head amp using Korg Nutube

$52.8 $31.68

Upgraded Preamplifier Amplifiers HiFi Tube Preamp Amp Speaker Sound Home Theater

$26.52 $15.91

Pro-Ject Tube Box S2 Pure-Tube MM/MC Phono Preamplifier (Black)

$439.12 $263.48