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

$66.87 $40.12

Brand New Gain Matched Trio (3) Electro-Harmonix 6SN7 Gold Pin Vacuum Tubes

$195.15 $117.09

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

$66.83 $40.1

High Current Class A Tube Headphone Amplifier MINI Electronic Tube Preamplifier

$65.82 $39.49

Philips 12AU7 ECC82 NOS Made in Spain Tested Very Strong Balanced Tube

$42.64 $25.59

CV2492 Mullard E88CC ECC88 Gold Pins Used Tested 120% NOS Balanced sections 1977

$96.8 $58.08

Sylvania 6SL7GT VT-229 NOS Tested Strong Closely Matched Sections Tube

$39.12 $23.47

new Quad JJ ECC83S / 12AX7 PREAMP VACUUM TUBES ***FREE SHIPPING***

$87.12 $52.28

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

$46.62 $27.97

Hifi Tube Preamplifier Headphone Amplifier Supports Remote Control Black Panel

$535.92 $321.56

MCINTOSH VACUUM TUBE PREAMPLIFIER C220 INFORMATION/ADVERTISMENT PAGE J0243

$8.75 $5.25

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

$28.99 $17.4

Closely Matched Pair Tung-Sol 5Y3GT NOS NIB Life Test Great Tube

$39.12 $23.47

New Boxed NADY TMPS-2 TCM 1050 Vacuum Tube Condenser Microphone Power Supply

$990.0 $594.0

Hafler MP100 Tube MIDI Preamp w/ Foot Switch, Manual & Step-Up

$366.61 $219.97

Brand New In Box Electro-Harmonix 5U4GB 5U4 Vacuum Tube

$29.33 $17.6

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

$73.92 $44.36

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

$32.5 $19.5

Universal Audio 2-610 Early 2000's model Blue Gray Silver

$1496.0 $897.6

E88CC-TK Black Diamond Series Vacuum Tube Matched Pair w/ Balanced Triodes

$145.2 $87.12

Tube Box S2 Pure-Tube MM/MC Phono Preamplifier Black

$791.12 $474.67

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

$36.96 $22.18

Closely Matched Pair Tung-Sol 5Y3GT Same Date NOS NIB Life Test Great Tube

$51.44 $30.87

Lot of 4 Tube Mixed Brand 12SN7GT Tested Strong Balanced Tube

$25.04 $15.03

Presonus Studio Channel Single Channel Tube Strip - Mic Preamp / Comp /EQ

$316.8 $190.08

Tube Amplifier Preamplifier for Home Theater System Turntable

$30.23 $18.14

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

$32.53 $19.52

2 x Philips E188CC - 7119 Test V.STRONG MATCHED BALANCED ID4 Triode Vacuum Tubes

$132.0 $79.2

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

$73.92 $44.36

HiFi Turntable Phono Stage Preamp w/GE5654 Tube Audio Preamplifier Headphone USA

$96.78 $58.07

Brand New JJ Electronic 5Y3 Rectifier Vacuum Tube 5Y3GT 5Y3S

$32.02 $19.21

RCA 5963 12AU7 ECC82 Tested Good Tube

$10.96 $6.58

Closely Matched Pair RCA 6SL7GT VT-229 Same Date NOS NIB Tested Balanced Tube

$104.24 $62.55

3x NOS National Electronics 6679 12AT7 Triple Mica Vacuum Tubes - TV7 Tested

$26.4 $15.84

Lot Of 3 6AX4GT Life Test Excellent Test Emission Above 100% Tube

$8.32 $4.99

HiFi Turntable Phono Stage Preamp w/GE5654 Tube Audio Preamplifier Headphone NEW

$96.54 $57.93

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

$18.63 $11.18

Phono Amplifier for Turntable Tube Pre Headphone Preamp Pre-amp Home Theater

$20.11 $12.07

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

$66.82 $40.1

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

$66.85 $40.11

Warm Audio WA-MPX Single-Channel Tube Mic Preamp FREE SHIPPING

$659.12 $395.48

VOX MV50 AC Amplifier MV50AC Vacuum tube mini head amplifier FROM JAPAN

$136.4 $81.84

Tube Amplifier Hifi Board Preamplifier Pre-amp for System DIY Part Front

$25.43 $15.26

1PCS 6J1P Valve Vacuum Tube for PreAmplifier Board Headphone Amplifier Module

$1.91 $1.15

6189 / 12AU7WA by GE. Balanced & Strong, Halo Foil Getter #520

$23.19 $13.92

Tube Guard Protector PreAmp Silver For 12AX7 12AU7 ECC82 ECC81 6N11 Guitar amp

$5.66 $3.4

AIYIMA TUBE T2 vacuum Tube Bluetooth Preamp + 2 Extra Pair Of Vacuum Tubes + PSU

$99.23 $59.54

Closely Matched Pair Raytheon 6BQ5 EL84 7189 Test Like NOS Tube

$33.84 $20.31

LUXMAN Vacuum Tube Pre Amplifier Amp CL-38uC AC100V

$5015.12 $3009.08

DIY Headphone Amplifier Kit for Tube Preamp 6J1 Vacuum Electron Preamp Tube

$14.71 $8.83

Behringer MIC300 Audiophile Vacuum Tube Preamplifier with Limiter

$94.3 $56.58

Westinghouse 12AU7 ECC82 NOS NIB Black Plate Tested Strong Balanced Tube

$21.52 $12.91

Radio Tubes 12AX7 ECC83 Bogen Germany Siemans Matched PAIR

$92.4 $55.44

Laney IRONHEART IRT-STUDIO 3 channel rackmount head

$835.12 $501.08

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

$20.32 $12.2

FRYETTE VALVULATOR GP/DI Guitar Amp Head 100V 30W Vacuum Tube Amplifier

$806.96 $484.18

Randall MTS George Lynch Super V Amp Module

$351.3 $210.78

5 Pcs NOS GE 6DK6 - audio radio Preamp Tubes NIB

$13.2 $7.92

GZLOZONE PRT-07B Hifi 12AX7 Tube Preamplifier Base On Marantz 7(M7) Circuit PCB

$13.2 $7.92

GE 12AU7A NOS NIB Short Grey Plate O-Getter Tested Strong Balanced Tube

$16.24 $9.75

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

$32.55 $19.53

12AU7 GE Audio Receiver Vacuum Tubes Tested Trio

$22.0 $13.2

Fisher NEW OLD ORIGINAL STOCK Tuning Knob Vacuum Tube TA600, 100T, Others!

$15.8 $9.48

Preamplifier for Home Theater System Board Pre-amp Turntable

$19.36 $11.62

2D21 RCA NOS NIB Audio Receiver Thyratron Vacuum Tubes Lot of 3

$18.48 $11.09

RCA 6072 12AY7 PERFECT MATCH PAIR GREY PLT S RODS TEST NOS MINTY VINTAGE 1963

$123.16 $73.9

Lot Of 5 5T8 Sylvania Silvertone Ge Vintage Preamp Vacuum Tube Untested

$22.88 $13.73

2 x USA Hoffman 6SN7GTA preamp tubes, Tested Good ! (N-12,30)

$30.08 $18.05

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

$29.57 $17.75

6cg7 tube nos Fivre italy long plate valve preamp tubes 6fq7 vt99 6f8g 7n7 6sn7

$220.0 $132.0

BRZHIFI Tube Preamplifier Bluetooth 5.0 Lossless Player Headphone Amplifier

$55.26 $33.16

12AU7 12AX7 Tube preamplifier pre amplifier Reference Marantz 7 Circuit

$286.0 $171.6

DC12V-16V HiFi 6K4 Tube Preamplifier Preamp Audio Amp Home Theater Assembly DIY

$21.29 $12.78

12AU7 ECC82 GE #8 Long Grey Plate Fat D Getter Audiophile Tube

$12.72 $7.63

12AU7A by Sylvania. Balanced & Strong, Halo Getter #528

$13.6 $8.16

Soldano Astro-20 Head 20-Watt 3-Ch Tube Guitar Head w/IR Loader - Used

$1557.6 $934.56

Pair GE 6AB4 EC92 NOS NIB Life Test Excellent Tested Emission Over 100% Tube

$8.32 $4.99

dbx 676 Tube Mic Preamp Channel Strip PRO AUDIO - DEMO - PERFECT CIRCUIT

$1095.6 $657.36

WORLD'S BEST NOS RCA 5965 E180CC 6829 MATCHED PAIR TUBES NEW 1960's for CJ PV5

$70.4 $42.24

JJ Electronic - Ruby 3 x ECC83S / 12AX7 ACZ HG + 1 x ECC81 / 12AT7 Preamp Tubes

$69.25 $41.55

FULL JJ REPLACEMENT TUBE SET FOR FENDER DELUXE 6G3 TUBE AMP 12AX7 5AR4 6V6

$149.56 $89.74

Vintage RCA 12AU7 Clear Top Vacuum Tube 196Os Gray Plates USA Test Strong 1 Pair

$22.0 $13.2

Telefunken 12ax7 Ecc83 West Germany Audio Preamp Amplifier Radio Vacuum Electron

$105.58 $63.35

5751 RCA JRC BLACK PLATE VACUUM TUBE 12AX7 MATCHED TRIODES NOS (1962) *eTRACER*

$100.67 $60.4

MP-301 MK3 Integrated Vacuum Tube Amplifier Headphone Amplifier EL34 +6J8P Tubes

$439.12 $263.48

CBS-Hytron JAN-CHY 5Y3WGTA Black Plate O-Getter Brown Base Tested Tube

$12.72 $7.63

Vintage 1980s SME SPL-2HE Stereo Tube Preamplifier 100V Audio ECC88 Vacuum

$5719.12 $3431.48

1 x NOS Telefunken Germany EF804S ~ 1963 OEBox Audio/MicTube ~ V72 V76 V77 V69

$259.61 $155.77

Brand New Gain Matched Trio (3) Mullard Reissue ECC81 12AT7 Vacuum Tubes

$81.61 $48.97

New MU-603 12AU7 Tube Bluetooth 5.1 Aptx HD ES9018K2M Decoder Hi-Res Pre-amp

$170.92 $102.55

Warm Audio WA-2MPX Dual Tube Microphone Preamp PRO AUDIO NEW PERFECT CIRCUIT

$1231.13 $738.68

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

$22.31 $13.39

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

$19.36 $11.62

Synergy Friedman HBE 2-Channel Preamp Module

$337.92 $202.75

Pair NOS GE 12AT7 ECC81 Vacuum Tubes - Tv7 tested

$22.0 $13.2

Traverse Analogue 652 Dual-Channel Vacuum Tube Preamplifier

$1755.6 $1053.36

6J1 Valve Preamp, Vacuum Electrom Tube Preamp Valve Preamp Amplifier Board Au...

$24.25 $14.55

Amperex 12AU7 ECC82 Balanced Very Strong Tests NOS+ Vacuum Tube - TV7 Tested

$24.64 $14.79

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

$73.92 $44.36

New Psvane KT88-T Classic MKII II Series Vacuum Tube Plate Current Tested

$98.38 $59.03