AMPEREX 12AU7 ECC82 TUBES ORANGE GLOBE CURVE TRACER & DATE MATCHED PAIR

$157.42 $94.45

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

$288.64 $173.19

Brand New Mullard Reissue 6L6GC 6L6 Current Matched Quad (4) Vacuum Tubes

$208.03 $124.82

Brand New Current Matched Quad (4) Electro-Harmonix KT90 Vacuum Tubes

$320.62 $192.37

Pair of Electro-Harmonix 12AX7 EH Preamp Vacuum Tube

$43.92 $26.35

Mini Vacuum Tube MM Phono Stage Best Turntable Preamp Stereo Audio Preamplifier

$49.65 $29.79

Ampapa A1 Mini 5654 Vacuum Tube Preamp Phono/Turntable Amplifier w/Tone Control

$115.8 $69.48

JOYO Mini Amp Head 20W Preamp 2 Channel Guitar Amplifier Hybrid Tube Opened

$139.04 $83.43

Electro-Harmonix 12BH7 Preamp Vacuum Tube 12BH7EH

$30.8 $18.48

Project Sunrise Version II headphone pre-amp (Upgraded capacitors and new tube)

$118.8 $71.28

Realistic Lifetime 12AT7 ECC81 Gold Pin Preamp Vacuum Tube Amplifier Radio Rare

$30.8 $18.48

PrimaLuna EVO 400 Stereo Tube Preamplifier

$3363.36 $2018.02

SIX Electro-Harmonix 6922 Preamp Vacuum Tubes For Sale

$96.8 $58.08

PreSounus Tube Preamp 16 Watts

$61.6 $36.96

Finished 12AX7+12AU7+6Z4 vacuum tube stereo preamp with Bluetooth input L13-4

$205.95 $123.57

Hazelrigg Industries DVA 500 Series Vacuum Tube Preamp/DI

$1055.13 $633.08

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

$62.14 $37.29

HiFi 12AX7 Vacuum Tube Preamp Stereo Audio Desktop Preamplifier Refer to Marantz

$201.52 $120.92

1pc Psvane Tube New 6SN7GT 6SN7 6N8P Valve audio amplifier Preamp

$18.93 $11.36

28 RCA 12FQ8 amplifier preamplifier tubes USED PULLED FROM ORGAN WORKING

$39.6 $23.76

4 RCA Electron Tube 6AV6 NOS Radio Audio Pre-amp Vacuum Tube NEW

$17.6 $10.56

1 x Mullard ECC83 12AX7 Test STRONG I61 Blackburn Preamp Dual Triode Vacuum Tube

$50.59 $30.35

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

$48.24 $28.94

Pair of Electro-Harmonix 12AU7 EH Gold Pin Preamp Vacuum Tube

$100.9 $60.54

FX-AUDIO- TUBE-01J Vacuum Tube Preamplifier NFJ Original Model Black

$65.91 $39.55

Electro-Harmonix 6CG7 / 6FQ7 EH Preamp Vacuum Tube

$34.28 $20.57

ART TUBEFIRE 8 CHANNEL TUBE MICROPHONE FIREWIRE PREAMP / INTERFACE

$242.0 $145.2

Genalex - Gold Lion B759 / ECC83 / 12AX7 Preamp Vacuum Tube

$55.4 $33.24

2 RCA 12AX7 BLACK PLATE VACUUM TUBES 1

$70.41 $42.24

Matched Pair RCA 12AU7A/ECC83/5814 Preamp Vacuum Tube Valve- Bangybang.tube

$96.1 $57.66

Nobsound NS-10P Mini Vacuum Tube Pre-Amplifier - Black

$44.0 $26.4

Pair of Electro-Harmonix 6SN7 EH Preamp Vacuum Tube

$90.8 $54.48

6SC7GT National Union Black Glass Audio Receiver Preamp Vacuum Tube Tested

$20.24 $12.14

Presonus TubePre V2 Vacuum Tube Preamp 4 Recording/Live Sound+2) Studio Monitors

$241.92 $145.15

Tube T6 PRO Bluetooth 5.0 Tube Preamplifier Hi-Fi Headphone Amp Vacuum Tube

$130.32 $78.19

JJ ECC82 GP 12AU7 GOLD PIN Version Preamp Vacuum Tube DHL EXPRES

$26.4 $15.84

Linear Tube Audio MicroZOTL Stereo Tube Preamplifier; Level 2 Upgrade

$3415.28 $2049.17

JJ ELECTRONICS ECC82 MATCHED TRIODE SECTIONS 12AU7 PREAMP TUBE PREMIUM BRAND NEW

$29.04 $17.42

Brand New Gain Matched Quad (4) Electro-Harmonix 6SN7 Vacuum Tubes

$128.87 $77.33

Brand New Mullard Reissue ECC82 12AU7 Gain Matched Septet (7) Vacuum Tubes

$179.99 $108.0

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

$33.4 $20.04

McIntosh C1100 Analog Tube Preamplifier w/ Boxes, Manual, Remote - Excellent

$8355.6 $5013.36

NEW Ampapa A1 HIFI 5654 Tube Phono Stage for Turntables Stereo Audio Preamp

$88.0 $52.8

Balanced Audio Technology VK-53 SE Stereo Tube Preamplifier

$6489.12 $3893.48

RCA 12AX7 GRAY PLATES MAXI PREAMP TESTED

$30.76 $18.46

GE JAN 12BY7A Vintage Radio Driver Vacuum Tubes (NOS sleeve of five)

$70.41 $42.24

Electro-Harmonix 12AT7WC EH Preamp Vacuum Tube

$26.36 $15.82

ART Tube MP/C Tube Mic Preamp + Compressor PRO AUDIO - NEW - PERFECT CIRCUIT

$154.88 $92.93

RCA / Hammond 6SN7GTB Vintage Black Plate Preamp Vacuum Tube Tested USA

$16.72 $10.04

Pair of Tung-Sol 5751 New Production Preamp Vacuum Tube

$84.27 $50.57

Tube Preamp Vacuum Electron Tube Valve Preamp Phono Preamp For Turntable

$24.73 $14.84

Little Dot LD1+ Headphone Tube Pre-amp Vacuum Tube Headphone Amplifier 6J1 Tube

$74.8 $44.88

Mullard EL34 Code Xf2 B9D1 Tested Strong Tube

$121.84 $73.11

4 x NOS? + used Telefunken, RFT ECC85 - 6AQ8 Triode Preamp Vacuum Audio Tubes

$17.6 $10.56

ART Tube MP Professional Mic Preamp/Processor

$96.8 $58.08

Class A FU50 Tube Preamplifier HiFi Vacuum Tube Amplifier Integrated DIY Kit

$153.04 $91.82

4 NOS GE 6680 12AU7A Vacuum Tubes - Audio Twin Triodes for Amps & PreAmps

$61.6 $36.96

Genalex Gold Lion 12AX7/ECC83 Gold Pin Preamp Tube

$55.44 $33.26

HiFi Vacuum Tube Phono Preamplifier MM RIAA Turntable Preamp Stereo Audio Amp

$66.17 $39.71

jessup BT3 preamp Tube valve gain monster Diesel VH4 ch3 clone metal chug rock

$659.12 $395.48

6J1 Valve Pre-amp Tube PreAmplifier Board AC 12V Headphone Amplifier + Case

$3.79 $2.28

Summit Audio 2BA-221 Line and Microphone Preamp - Excellent Condition!

$374.0 $224.4

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

$25.11 $15.07

1pc 12AU7 (ECC82) Shuguang Vacuum Tubes Preamp Guitar Amp Audio Valve

$17.16 $10.3

Sovtek 12AX7WXT+ Preamp Tube 12AX7 Valve #136

$26.04 $15.62

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

$60.98 $36.59

imitate Maratz 7 tube preamplifier audio preamp

$207.59 $124.55

Raytheon 6SN7WGT Tested Like NOS Balanced Tube

$77.84 $46.71

(3) NOS AMPEREX BUGLE BOY EF89 / 6DA6 TUBES f/ AUDIO PREAMPLIFIER

$66.0 $39.6

HiFi ARC SP-10 Tube Preamplifier Board PCB Stereo 6922 Vacuum Tube Preamp PCB

$17.61 $10.56

Sylvania 6SN7GT Tested Good Balanced Tube

$51.44 $30.87

Closely Matched Pair Matsushita EL34 6CA7 Tested Good Tube

$104.24 $62.55

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

$66.75 $40.05

EL34 HANDWIRED CHASIS * JCM25

$439.96 $263.98

PreSonus TubePre pre-amplifier

$30.8 $18.48

Electro Harmonix 6SN7 Russia Vacuum Tube Tested Balanced NOS Preamp Amplifier

$35.21 $21.12

Nobsound T8 PRO 6H1N-BN 7-Band EQ Vacuum Tube Preamp Equalizer Home Speaker XLR

$199.82 $119.89

PAIR Of 1960s Sylvania 6CG7 6FQ7 Vacuum Preamplifier Tubes - Made in USA - NOS

$26.4 $15.84

12AU7 K9E Vintage Vacuum Tube Long Black Plate Preamp, Untested

$25.16 $15.1

Synergy Friedman BE-DLX Guitar Tube Pre-Amp Module

$352.0 $211.2

NOS PAIR SYLVANIA 2C51 Audio Preamplifier VACUUM TUBES USA Tested 4.7359-D

$65.96 $39.58

HiFi Vacuum Tube Preamplifier Stereo Audio Preamp 12AU7 6N2 6Z4 6N4 Tube Ref

$424.02 $254.41

ART Tube MP Mic Preamp - TUBEMP Preamplifier Professional Processor Series

$39.6 $23.76

Marantz #7C vacuum tube preamp with wooden case Brown #

$8521.05 $5112.63

Closely Matched Pair 7581A 6L6GC Russia NOS Tested Strong Tube

$69.04 $41.43

TUBE AMP DOCTOR 12AY7 / 6072A PREAMP VACUUM TUBE BRAND NEW IN BOX

$41.32 $24.79

T4 PRO Vacuum Tube Phono Preamp MM Turntable Preamplifier GE5654 Hi-Fi Headph...

$52.8 $31.68

Pair of Genalex - Gold Lion E88CC / 6922 Preamp Vacuum Tube

$121.36 $72.82

Stereo 6J1 Vacuum Tube Headphone Amplifier HiFi Single-ended Mini Class A Preamp

$78.4 $47.04

HiFi Vacuum Tube Preamp Home Stereo Desktop Audio Pre-Amplifier with Remote

$1323.52 $794.11

Conrad Johnson PV5 Vacuum tube Preamplifier

$1496.0 $897.6

1 x Mullard ECC189 - 6ES8 Test GOOD Preamp Audio Dual Triode Vacuum Tube

$7.92 $4.76

Closely Matched Pair Matsushita 12AX7A ECC83 (Mullard Supply) NOS NIB Test Tube

$148.24 $88.95

Vintage Westinghouse 12AU7A Preamp Tube 12AU7 ECC82 Valve #73

$35.01 $21.01

(2) NOS TUNG SOL 6AU7 TUBES f/ AUDIO PREAMPLIFIER

$20.24 $12.14

Pre Amp Stereo Tube Drive Pre-amp for Home Theater Amplifier

$19.76 $11.86

Brand New In Box Gain Tested Mullard Reissue 12AU7 ECC82 Vacuum Tube

$30.35 $18.21

SUNVALLEY SV-722 Vacuum Tube Preamplifier (Marantz 7 Type) Excellent Tested

$1305.48 $783.29

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

$56.67 $34.0

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

$59.95 $35.97