Beyond Tube Preamp 2S Vacuum

$318.0 $190.8

Brand New Genalex Reissue KT77 KT-77 Current Matched Pair (2) Vacuum Tubes

$149.78 $89.87

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

$52.51 $31.51

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

$60.19 $36.11

CBS-Hytron JAN-CHY 5Y3WGTA Black Plate Tested Strong (Like NOS) Rectifier Tube

$16.24 $9.75

1 Sylvania 6SN7GTB Vacuum Tube - 1956 Vintage TALL BOTTLE Audio Twin Triode

$17.61 $10.56

1R5 RCA NOS NIB Audio Receiver Radio Preamp Vacuum Tubes Tested Quad

$21.12 $12.67

Universal Audio LA-610 MkII Solo 610 Tube Mic Pre + LA2A LA-2A Style Compressor

$2199.12 $1319.48

Aiyima T2, with original Burson V6 vivid dual,4pair of new tubes, BT-DAC, preamp

$272.8 $163.68

Pair Philips 6CW5 EL86 Same Date NOS NIB Smoked Glass Life Test Excellent Tube

$21.52 $12.91

Closely Matched Pair Tung-Sol 5881 6L6WGB Tested Strong Tube

$60.24 $36.15

Brand New In Box Mullard Reissue 6L6GC 6L6 Current Matched Pair (2) Vacuum Tubes

$107.45 $64.47

Closely Matched Pair Sylvania 6SN7WGT Tested Like NOS Tube

$130.64 $78.39

Brand New In Box Genalex Reissue KT77 KT-77 Vacuum Tube Plate Current Tested

$73.15 $43.89

Audio Vacuum Tube Preamplifier Stereo Treble Bass Adjustment For Passive Speaker

$87.51 $52.51

Brand New Plate Current Matched Pair (2) Mullard Reissue KT88 6550 Vacuum Tubes

$143.92 $86.35

Brand New Genalex Reissue 12AT7 ECC81 GOLD PINS Gain Tested Vacuum Tube

$60.86 $36.52

MT-603 Tube Preamplifier Tube Amp with Four Groups of AUX Input and Shell

$95.92 $57.56

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

$85.28 $51.17

Philips 12AX7 7025 ECC83 NOS NIB Tested Very Strong Balanced Tube

$77.84 $46.71

Art Tube Mp Project Series Mic Preamp Vacuum Tubes Have Been Replaced Power Supp

$139.69 $83.81

GE 5Y3GT Label Thomas Tested Good Tube

$10.96 $6.58

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

$19.96 $11.98

Bellari VP130 Mm Tube Phono Preamplifier With Headphone Amplifier

$263.12 $157.88

Matched Pair RCA 5963/12AU7/ECC83 Preamp Vacuum Tube Valve- Bangybang.tube

$96.1 $57.66

NOS JG 5814A 12AU7 GE triple mica preamp tube Tested Excellent. 1958/59 Product

$35.21 $21.12

Pre Amplifier Home Audio Tube Preamplifier Kit Finished Board

$29.21 $17.53

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

$32.52 $19.51

BRZHIFI PAP-711 Field Effect Tube Preamplifier 220V Amplifier for SANSUI 711

$305.14 $183.09

SA-20 HiFi Vacuum Tube Audio Sound Processor Audio Stereo PhonographPreamplifier

$73.04 $43.82

Standard Tube Set for Orange Rockerverb 100 MKII

$203.68 $122.21

TRIODE TRV-4SE Vacuum tube preamplifier used from JAPAN

$1116.72 $670.04

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

$29.57 $17.75

DBX Professional Products Mini-Pre Vacuum Tube Preamp

$93.83 $56.3

Presonus STUDIO CHANNEL 1 Ch Vacuum Tube Ch Strip Mic/Instrument Preamplifier

$316.8 $190.08

Avalon Design VT-737sp Vacuum Tube Channel Strip Preamp EQ Compressor 737 sp

$1776.72 $1066.04

1ea (One) USSR 6N3P-EV 6Н3П-EB 5670 2C51 396A Gold Grid Tested NOS NIB Tube

$6.56 $3.94

Electro-Harmonix 12AU7 Preamp Vacuum Tubes (2) 12AU7/ ECC82

$45.76 $27.46

Brand New Genalex Reissue 6V6GT 6V6 Current Matched Quad (4) Vacuum Tubes

$208.03 $124.82

Tung Sol 12AX7 - ECC83 Preamp Vacuum Tube - Open Box

$19.36 $11.62

Vintage RCA Knight 12AU7A Preamp Tube ECC82 Valve #71

$35.01 $21.01

electro-harmonix English Muff'n Fuzz Effect Pedal Tube Distorsion/PreAmp

$220.0 $132.0

Two 5879 Vacuum Tubes - Low Noise 3-Mica Pentodes for Audio Amps and Jukeboxes

$10.56 $6.34

JJ Electronic ECC83S / 12AX7 Preamp Tube Valve #55

$17.06 $10.24

Summit Audio 2BA-221 Tube Mic and Line Preamp Module with Box and Manual

$686.4 $411.84

12AX7A ECC83 RCA Long Grey Plate Fat D Getter Tested Amp Guitar Audiophile Tube

$33.84 $20.31

6SJ7Y JAN CKR VT-116 Ken Rad NOS NIB Metal Harmonica Amp Vacuum Tubes Tested 2

$22.0 $13.2

GE JAN 5687WB 5687 Vintage Black Plate Vacuum Tubes (NOS sleeve of five)

$79.2 $47.52

5751 RCA JRC BLACK PLATE 3 MICA 12AX7 NOS TOP QUALITY (1957) *eTRACER*

$108.41 $65.05

Closely Matched Pair GE 6SL7GT Same Date True NOS NIB Tested Balanced Tube

$60.24 $36.15

CBS-HYTRON - 6SN7GTB Blackplate - D-GETTER Tested Good (3tubes)

$66.0 $39.6

Pair of Genalex - Gold Lion B749/ECC82/12AU7 Preamp Vacuum Tube

$147.75 $88.65

Tube Preamp for Record Player Phono Vacuum Pre-amp Amplifier

$28.74 $17.24

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

$18.6 $11.16

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

$347.66 $208.6

Crosley 35Z4GT Vacuum Tube NOS Vintage Radio 35Z4G R-Player Juke Box Silvertone.

$7.92 $4.75

New Presonus Bluetube DP V2 2 Channel Tube Mic Pre-Amp DP2 With Dual Path

$224.4 $134.64

Sylvania 12AT7 Vacuum Tube Pre-Amp, Triple Mica, Made in USA, Vintage

$10.52 $6.31

ART TUBE MP PROFESSIONAL MIC & INSTRUMENT TUBE PREAMP PROJECT SERIES

$70.4 $42.24

Black 5725 Vacuum Tube TUBE-T1 PLUS Preamplifier USB and Bluetooth 5.0

$50.15 $30.09

NE5532 Dual OP Front Audio Amplifier, Stereo Tube Preamp Treble Mid Bass8075

$17.81 $10.69

Field Effect Tube Class A Preamplifier 220V Power Amplifier BRZHIFI PAP-711

$311.01 $186.61

One Tube (1 pcs) Telefunken 1AH5 DAF96 Diamond NOS NIB Tested Strong Tube

$16.24 $9.75

Matched Pair RCA 5963/12AU7/ECC83 Preamp Vacuum Tube Valve- Bangybang.tube

$73.92 $44.36

U8 Audio Amplifier BT5.1 HiFi Vacuum Tube Preamplifier Headphone Amp in One

$133.76 $80.26

Closely Matched Pair Amperex 6BQ5 EL84 Code kM4 Δ0F2 NOS NIB Same Date Tube

$130.64 $78.39

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

$13.32 $7.99

ART USB Dual Pre 2-channel Audio Interface / Preamplifier

$83.6 $50.16

WAVAC PR-Z1 Preamplifier

$8800.0 $5280.0

OTK Single Vintage Tube 6H8C 1180 Rare Audio Electron Amplifier Vacuum Preamp

$44.0 $26.4

Realistic Long-life 12AX7 Tube, Grey Plates, O-Getter, TV-7 Test = 116% & 104%

$28.16 $16.9

RCA 12AU7WA 6189 ECC82 NOS NIB Black Plate 3 Mica Tested Strong Balanced Tube

$30.32 $18.19

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

$14.67 $8.81

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

$19.36 $11.62

Vintage Sylvania 6SN7GT Black Plate Pre-Amp Tube Tested @ NOS

$22.0 $13.2

HiFi Audio Reference to Maratz 7 circuit ECC83 tube preamplifier tube amplifier

$235.84 $141.51

EVH ECC83 / 12AX7 Guitar Amp Preamp Tubes, Pair 0223283002

$61.6 $36.96

Matched Pair GE 6BL7GTA NOS NIB Life Test Excellent Tested Balanced Tube

$17.12 $10.27

GE 6DJ8 1960's Gray Glass TRUE NOS Vacuum Tubes PLATINUM MATCHED on AT1000 ECC88

$22.0 $13.2

12AX7B ECC83 Vacuum Tube for Guitar Pre-Amp Amplifier Replacement

$15.59 $9.36

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

$66.76 $40.06

Tube Amplifier Preamplifier for Home Theater System Phono Turntable

$19.8 $11.88

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

$29.57 $17.75

Vintage Brimar 12AU7/ECC82/5814 Side Getter Vacuum Audio Tube

$44.36 $26.62

Phono Preamp for Turntable Stereo Tube Amplifier High Fidelity

$28.33 $17.0

ART Tube MP Project Series Tube Microphone/Instrument Preamp

$128.48 $77.09

Rogue Audio Sphinx V3 Stereo Tube Hybrid Integrated Amplifier; MM & MC Phono

$1056.0 $633.6

1 QUAD GENALEX GOLD LION 12AX7 / B759 GOLD PIN PREAMP TUBES (4 TUBES NEW IN BOX)

$255.16 $153.1

Pair #1 12AU7A ECC82 RCA Clear Top Tested Balanced Matched Vacuum Tube

$30.32 $18.19

Hifi Tube Preamplifier Tube Preamp Headphone Amplifier + Panel + Remote Control

$548.15 $328.89

MATCHED Pair +1 IEC ECC81 12AT7 Tube AMP No Microphonics! TV-7 / Sencore Tested

$88.06 $52.84

SOVTEK 6SN7 PREAMP TUBE BRAND NEW HIGH QUALITY TESTED STOCK

$22.0 $13.2

5814A 12AU7 GE Audio Receiver Vacuum Tubes Tested Pair

$22.88 $13.73

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

$19.33 $11.6

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

$70.01 $42.01

CARY 5Z4P + 6N8P*4 Vacuum Tube Pre-amp PreAmplifier Bare PCB Board

$14.31 $8.59

1955 Sylvania 12AT7 Vintage Made In USA Preamp Tube. Tested Strong BD Date Code.

$22.0 $13.2

PRT07B 12AX7 Tube Preamps Base On Marantz 7 (M7) Circuit Kit / Board (No Tubes)

$30.8 $18.48

HiFi Vacuum Tube Preamp Bluetooth 5.0 USB DAC Stereo Headphone Amplifier APTX

$86.73 $52.04

NEW MT-604 6J1*4 Balanced Tube Pre-amp XLR/4.4MM Class-A Hybrid Amplifier

$252.56 $151.54