New Current Matched Quad (4) Electro-Harmonix 6550 Ceramic Vacuum Tubes

$268.51 $161.11

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

$44.44 $26.67

Brand New In Box Current Matched Sextet (6) Electro-Harmonix KT88 Vacuum Tubes

$407.53 $244.52

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

$346.51 $207.91

YAQIN MS-23B Tube Phono Stage Pre-AMP MM RIAA Turntable HiFi Stereo Preamplifier

$316.8 $190.08

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

$29.57 $17.75

RCA 12AY7 6072 PERFECT MATCH PAIR S RODS NOS+ NIB VINTAGE 1968 FOR WESTINGHOUSE

$131.96 $79.18

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

$19.36 $11.62

GE 12BH7A Preamp Vacuum Tube

$22.0 $13.2

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

$1760.0 $1056.0

Closely Matched Pair Raytheon 6SN7GT VT-231 Same Date Tested Like NOS Tube

$209.84 $125.91

Vintage National 5963/12AU7/ECC83 Preamp Vacuum Tube Valve- Bangybang.tube

$22.18 $13.31

RCA National Union GE 2A3 Vacuum Tube Set (test well on Amplitrex)

$281.61 $168.96

Matched Pair 6201/12AT7 Dual Triode Guitar Amp. Audio Vacuum Tube Valve- Bangyba

$73.92 $44.36

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

$21.29 $12.78

3-500ZG Penta Laboratories High Mu Power Triode Matched Pair (2) Tubes 3-500Z

$611.43 $366.86

Brand New Gain Matched Quad (4) Electro-Harmonix 12AT7 ECC81 Vacuum Tubes

$87.37 $52.42

Vacuum Electron Tube Valve Preamp Amplifier Board Headphone Amp Parts Musical HQ

$13.25 $7.95

Dr. Z Z-28 MK II 1 x 12-inch 30-watt Tube Combo Amp - Red

$1891.12 $1134.68

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

$22.44 $13.46

Lot 3 5687 RCA Tubes NOS NIB Tested Audio Electron Preamp Amplifier Radio Vacuum

$39.6 $23.76

ART USB Dual Pre Two Channel Preamplifier / Computer Interface USBDUALPREPS

$70.36 $42.22

GE 6SN7GTB GE side-D Ribbed Flat Plate Vacuum Tubes

$17.6 $10.56

12AT7 tubes (2x) - Untested

$22.0 $13.2

EF86 Siemens 6267 NOS NIB Microphone preamplifier, hum & microphonics tested

$43.96 $26.38

Standard Tube Set for Engl 72 Coup

$161.57 $96.95

Vacuum Pre-amp -Fi Stereo Preamp Home Theater DIY Preamp Amplifier Board

$18.63 $11.18

Closely Matched Quad Sylvania 6J5 NOS NIB Life Test Excellent Tube

$77.84 $46.71

MM Vacuum Tube Phono Preamplifier LP Turntable Hi-Fi PHONOBOX Pre-Amp（No tube）

$367.84 $220.71

Brand New Gain Tested Electro-Harmonix 12AT7 ECC81 Vacuum Tube

$25.94 $15.57

Elekit TU-8900 Vacuum Tube Preamp Kit pre-amplifier Without Tube

$1101.03 $660.62

Sovtek 12AX7WC Matched Lot 4 Low Noise Pre-Amp Vacuum Tube Vt-1000 Rated: 9

$79.18 $47.51

TYPE 76 Vacuum Tubes - Various Brands - USA $17.95/ea (TESTED & GUARANTEED)

$15.8 $9.48

GE 6SL7GT Tested Strong Balanced Tube

$14.48 $8.69

Vacuum Pre-amp Hi-Fi Stereo Preamp Home Theater DIY Preamp Amplifier Board

$18.38 $11.03

DIY Part Stereo Preamp Audio Tube Phono for Turntable Pre-amp Amplifier Hifi

$20.11 $12.07

FOUR JJ EF806s / 6267 Preamp Vacuum Tubes For Sale

$70.41 $42.24

6CU8 Vacuum Tube NOS NIB Various Brand ( price is for one )

$1.76 $1.06

AMPEREX BUGLE BOY 6DJ8 ECC88 VACUUM TUBE 1961 LRG O GTR STRAIT MAN BEST EVER.

$139.92 $83.95

Gain Matched Trio (3) JJ 12DW7 / ECC832 / 7247 Vacuum Tubes - Brand New

$84.32 $50.59

Universal Audio 6176 Tube Channel Strip

$3079.12 $1847.48

Pair Of Amperex 6dj8 Maxi Preamp Tested

$30.8 $18.48

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

$44.44 $26.67

Vintage Sylvania NOS 6SN7 GTB Preamp Amplifier Tube Vacuum Electron B V Plates

$52.8 $31.68

Vacuum Pre-amp Hi-Fi Stereo Preamp Home Theater DIY Preamp Amplifier Board New

$26.57 $15.95

Closely Matched Pair RCA 6AS7G Same Date NOS NIB Tested Strong Balanced Tube

$86.64 $51.99

Vintage 1966 Westinghouse 12AX7A Preamp Tube 12AX7 Valve #58

$35.01 $21.01

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

$32.54 $19.53

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

$52.51 $31.51

One Tube (1pcs) Tung-Sol 6BA7 CV2527 Same Date NOS NIB Life Test Excellent Tube

$6.56 $3.94

One Tube (1 pcs) GE 7061 12AB5 Label Motorola NOS NIB Tested Strong Tube

$6.56 $3.94

6J1 Vacuum Tube Preamplifier for Headphones Low Noise High Fidelity Output

$10.61 $6.37

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

$28.99 $17.4

6072A RAYTHEON 12AY7 BLACK PLATE 3 MICA PREAMP TUBE NOS NIB *eTRACER*

$191.4 $114.84

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

$44.44 $26.67

Vintage GE 12AU7A Short Plate Preamp Tube ECC82 Valve Made In USA #72

$35.01 $21.01

Vintage RCA 12AX7A Preamp Tube ECC83 Valve 12AX7 #116

$43.99 $26.39

RCA 6F8G Tested Good Tube

$16.24 $9.75

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

$36.96 $22.18

RCA 6201 12AT7 ECC81 NOS NIB Life Test Excellent Tested Emission 100% Tube

$21.52 $12.91

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

$20.52 $12.31

RareNOS 1959 Matsu/Mullard OEBoxJapan 12BH7A AudioTube ~ 12AU7 Sub! ECC82 Plugin

$180.4 $108.24

JJ Tesla 12AX7 Vacuum Tube MATCHED PAIR Electric Guitar Amplifier ECC83 Preamp

$52.76 $31.66

Orange Amps Micro Terror 20-Watt Tube Preamp Compact Tube Amp with Guitar Cabine

$380.11 $228.07

Closely Matched Pair RCA 6SN7GTA Black Tested Strong Like NOS Balanced Tube

$25.04 $15.03

cv181 ecc32 6sn7 tube Mullard pair preamp tubes British valve black plate copper

$1100.0 $660.0

Project Studio Made Tube Amplifier Triad UTC B-6300 12AY7 Simpson VU Meter

$1055.13 $633.08

10 x NOS Philips Mullard made PCC89 7FC7 Dual Triode Audio Preamp Vacuum Tubes

$59.4 $35.64

Brand New Gain Tested Sovtek 6N1P / 6N1-P-EV Vacuum Tube

$29.33 $17.6

Lot of 2 Tube Raytheon 6BX7GT Tested Good Tube

$21.52 $12.91

1PC Pre-amp for Hifi System Audio Preamp Phono Tube Amplifier Turntable Stereo

$17.6 $10.56

🔥 Vocal Mic Kit Pro Audio Studio Condenser Microphone AKG Presonus Tube Preamp

$147.84 $88.71

5PCS 6J1P Valve Vacuum Tube for PreAmplifier Board Headphone Amplifier Module

$9.32 $5.59

PreSonus BlueTube DP V2 | 2 channel Microphone Instrument Tube Preamplifier

$224.4 $134.64

ELECTRO-HARMONIX 12AX7EH * GAIN TESTED

$22.53 $13.52

EF86 RIM Rohre 6267 NOS NIB Microphone preamplifier, hum microphonics tested

$35.16 $21.1

Conrad-Johnson ART88 Stereo Tube Preamplifier

$11119.68 $6671.81

Sylvania 5Z3 Black Plate Top Side D-Getter Tested Strong Balanced Tube

$17.12 $10.27

5 Sylvania Electron Tube 6CY5 NOS Radio Audio Pre-amp Vacuum Tubes NEW

$26.4 $15.84

1pc (One) Sylvania 12BY7A 12BV7 12DQ7 Same Date NOS NIB Life Test Excellent Tube

$12.72 $7.63

RCA 6BE6 Pre-Amp Electron Tubes Made in the USA 🇺🇸 Tested

$11.46 $6.88

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

$21.29 $12.78

6J1 PRT-01A Tube Preamplifier Kit DIY Vacuum Pre Amp Board

$21.5 $12.9

6146B Vacuum Tube Guitar Pre-Amp Electric Tube High Equipment

$37.66 $22.6

Four 9-Pin Miniature Vacuum Tube Socket Savers with Long Mounting Hardware

$22.0 $13.2

Amplificador Bluetooth Tube Preamplifier Fever Hifi 6J5 Vacuum Tube Preamp NEW

$19.26 $11.56

Hifi 12AX7 / 12AU7 Stereo Tube Preamp Bare PCB base on C22 preamplifier Circuit

$6.87 $4.12

RCA 6AN4 Vacuum Tube pre amplifier amp radio guitar electron ham vintage tested

$1.32 $0.8

Pair Westinghouse 6DC6 Same Date NOS NIB Life Test Excellent Tube

$10.96 $6.58

EMI / RCA 12AU7 Clear Top Preamp Amplifier Vacuum Tubes - Matched Pair

$29.92 $17.96

D2 Mini Tube Amplifier HiFi Tube Preamplifier Tube Headphone Amplifier x-TOP

$19.23 $11.54

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

$66.76 $40.06

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

$66.78 $40.07

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

$19.31 $11.59

AMPEREX ECC83 12AX7A TUBE MILITARY SPEC MADE IN USA - NIB

$88.0 $52.8

CAT-SL1-1 Preamp Board Hifi Electronic Tube Preamp Without Tube

$96.79 $58.07

Presonus Bluetube DP V2 2-Channel Tube Mic Pre-Amp DP2+Mic+Shockmount+Headphones

$272.72 $163.63

Phono Preamp for Turntable Pre-amp Record Player Tube Amplifier

$20.11 $12.07

Mini Class A Vacuum Tube Phono Preamplifier Record Player MC Turntable Preamp

$87.12 $52.27

Stax Vacuum Tube Driver Unit SRM-006tA Headphone Amplifier Audio Tested

$527.92 $316.75