PreSonus STUDIOCHANNEL Vacuum-Tube Channel Strip, Blue

$316.8 $190.08

New Plate Current Matched Quad (4) Mullard Reissue KT88 / 6550 Vacuum Tubes

$286.44 $171.86

GE 7025 12AX7 ECC83 VACUUM TUBE O GETTER GREY PLATE LOW NOISE SINGLE SWEET 1979

$52.66 $31.6

XDUOO TA-26S 6N5P 6N8P High Performance Tube Headphone Amplifier Line Out PreAmP

$280.73 $168.44

Single Ended EL84 Tube Amplifier Custom Build, SE EL84,DIY, Pre, Pre-amp

$660.0 $396.0

Closely Matched Pair Mullard EL34 Code Xf2 B9C4 and Xf2 B1D2 Tested Good Tube

$262.64 $157.59

Music Hall Ph25.2 Tube Hybrid Headphone Amplifier Preamp

$263.12 $157.88

NOS 6189 12AU7WA USAF GE triple mica preamp tube Tested Excellent. 1960 Product

$30.8 $18.48

Tung-Sol 12AX7 New Production Preamp Vacuum Tube

$25.48 $15.29

Universal Audio SOLO/610 Tube Desktop Microphone Preamp

$1231.13 $738.68

F200 Vacuum Tube Preamplifier Stereo HiFi Audio Tube Preamp For JP200 FREE-TOP

$375.37 $225.22

Schiit Saga Pre-Amp with extra RCA Tube

$220.0 $132.0

2PCS TESLA ECC803S / 12AX7 / E83CC AUDIO TUBES! YELLOW PRINT! TESTED! RARE 1968

$202.4 $121.44

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

$201.49 $120.9

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

$48.42 $29.06

SA-20 HiFi Vacuum Tube Audio Sound Processor Preamp Pre-Amplifier USB/Bluetooth

$74.8 $44.88

Nice Vintage STROMBERG CARLSON AV-53 Tube Preamp

$175.96 $105.58

Balanced Audio Technology VK-P80 Tube Phono Preamplifier

$3501.52 $2100.92

1 PCS PSVANE ECC83 Preamplifier Tube Amplifier Vacuum Tube Replace 12AX7 Tube

$27.28 $16.37

5 Pcs NOS GE 6C9 - audio radio Preamp Tubes NIB

$22.0 $13.2

Vacuum Tube, 12DW7 / ECC832, JJ Electronics, Dual Triode, Standard Pins, Preamp

$18.12 $10.88

5x 6AV6 Audio Receiver Preamplifier Vacuum Tubes

$52.8 $31.68

VTL Vacuum Tube Logic ADL Preamp

$1319.12 $791.48

Baldwin Raytheon 12AX7 Vintage 1960's Preamp Vacuum Tube For Guitar Amplifier

$22.0 $13.2

Lastest 6N8P(6H8C 6SN7) Vacuum Valve Tube Pre-Amplifier Stereo HiFi Preamp Board

$24.64 $14.79

Pair of Psvane 12AT7 Preamp Vacuum Tube

$42.16 $25.3

Presonus TubePre V2 Vacuum Tube Preamp+DI Direct Box+Microphone + Headphones

$147.8 $88.68

NOS RCA 5879 LOW NOISE 3 MICA AUDIO PREAMPLIFIER TUBE f/ JUKEBOX

$14.96 $8.98

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

$58.1 $34.86

Current item PreSonus studio channel vacuum tube tube preamp body only

$277.2 $166.32

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

$18.81 $11.29

dbx 376 Tube Channel Strip Microphone Preamp Vacuum Tube used tested working

$297.44 $178.47

Vacuum Tube Valve Preamp Board Filter Hum For Audiophiles

$14.96 $8.98

Vacuum Electron Tube Valve Preamp Stereo Board Preamplifier

$18.61 $11.17

Schitt Freya Plus Audiophile Hifi Stereo Tube Preamplifier w 4 Bonus Tung-Sol

$748.0 $448.8

Mullard 12AX7 ECC83 1959 Code I61 B9F Tested Good Balanced Section Tube

$60.24 $36.15

Aesthetix Rhea Tube MM & MC Phono Preamplifier

$1798.72 $1079.24

2pcs 6J1P 6AK5 Valve Vacuum Tube For PreAmplifier Board Headphone Amplifier S:bo

$3.1 $1.86

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

$201.52 $120.92

6J1 Hifi Vacuum Tube Preamplifier Tube Preamp With APTX Bluetooth 5.0 Support

$51.92 $31.15

Assembled Hi-End M7 Vacuum Tube Phono Riaa Turntable Marantz 7 Preamp Board

$66.0 $39.6

COMPANION MK II TUBE PREAMPLIFIER BRUCE MOORE AUDIO DESIGN

$594.0 $356.4

6SN7GT RCA Audio Receiver Guitar Preamplifier Vacuum Tubes Tested Pair

$25.52 $15.32

4 NOS GE 6680 12AU7A Vacuum Tubes - 1970's Audio Twin Triodes for Amps & PreAmps

$44.0 $26.4

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

$61.38 $36.83

JJ ECC83S / 12AX7 PREAMP VACUUM TUBE NOS NIB HICKOK TESTED 👑

$14.96 $8.98

Marantz Model 7K Vacuum Tube Stereo Preamplifier 1979 Vintage Used Maintained

$3317.35 $1990.41

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

$15.59 $9.36

6463 GE NOS NIB Audio Receiver Pre-Amp Vacuum Tubes Tested Pair Mint

$22.88 $13.73

Tube Headphone Preamp Phono Vacuum Electron Valve Amplifier

$22.48 $13.49

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

$360.8 $216.48

HI-END Stereo ECC82 Vacuum Tube Preamplifier Base On U.S Rogue99 Preamp

$318.56 $191.14

5 5879 PHILIPS ECG HiFi Radio Mic Mixer Pre Amp Vacuum Tubes Codes KA ACN NOS

$44.0 $26.4

12AX7B / ECC83 Preamp Vacuum Tubes Guitar Audio Amplifier Replacement Assembly,

$14.5 $8.7

Ruby 12AU7 ECC82 Triple Mica Amp Radio Preamp Tube Guaranteed

$4.36 $2.62

Rare Original Little Dot MT Micro Tube Headphone Amplifier / Pre Amp

$132.0 $79.2

Tung Sol 12AX7A ECC83 Vacuum tube

$13.2 $7.92

Pre-amp for Home Theater Vacuum Electron Tube Valve Preamp Amplifier

$19.76 $11.86

JJ ECC83 / 12AX7 Gold Pin Preamp Vacuum Tube

$30.76 $18.46

HiFi Vacuum Tube Preamplifier Bluetooth 5.0 Receiver Stereo Audio Amp USB Player

$132.35 $79.41

12AT7 Tung Sol Audio Receiver Preamplifier Vacuum Tubes Tested Pair

$30.8 $18.48

Vacuum Tube, ECC82 / 12AU7, Classic Series, Psvane, Preamp

$15.8 $9.48

Nobsound P1 PRO GE5654 HiFi vacuum tube preamp Bluetooth 5.0 USB DAC APTX (Red)

$110.67 $66.41

Behringer Tube Ultragain MIC200 Audiophile Vacuum Tube Preamplifier Modeler

$44.0 $26.4

Schiit Vali 2 - Audiophile Hifi Stereo Tube Headphone Amplifier / Pre-Amp

$61.6 $36.96

Ruby 3 Pack 12AX7AC5 HG Preamp Tubes

$56.66 $34.0

Electro-Harmonix 6H30Pi EH Gold Pin Preamp Vacuum Tube

$51.88 $31.13

One Single Tung Sol 6EU7 pre-amp tube, Brand New in Box !

$30.04 $18.03

NOS RAYTHEON 6267 Large O Getter Audio PREAMP VACUUM TUBE Tested 8.1898-D

$26.36 $15.82

Vintage 1970s Magnavox Mullard 12DW7 Preamp Tube ECC832 Valve #144

$26.04 $15.62

Universal Audio 4-710d 4-channel Microphone Preamp & Compressor

$1759.12 $1055.48

New Matched Pair (2) Psvane 12AU7-S ECC82 Gold Pins Art Series Vacuum Tubes

$83.67 $50.2

NEW JJ TESLA 12AT7 ECC81 Preamp Tube Guitar Amplifier

$26.4 $15.84

6FQ7 Vacuum Tube Hytron New Old Stock. Audio Preamp Amp HiFi.

$9.68 $5.81

Tung Sol 12AU7 NOS Vacuum Tube 1950s Audio HiFi Preamps Amp Mixers Stereo.

$22.0 $13.2

Vacuum Tube, 12AX7 / ECC83-WA, Tube Amp Doctor, Premium Selected, Preamp

$26.36 $15.82

Warm Audio WA-MPX 1-channel Tube Mic/Line/Instrument Preamp with XLR Cables

$659.12 $395.48

Mini Vacuum Tube MM Phono Stage Preamp Stereo Pre-amplifier for Home Turntables

$52.27 $31.36

PreSonus TUBEPRE V2 Mono Tube Preamp 1/3U - New

$152.41 $91.45

Vacuum Tube, ECC802 / 12AU7, JJ Electronics, Longer Plate, Standard Pins, Preamp

$20.2 $12.12

RFT 12AX7A ECC83 Label El-Menco NOS NIB (East Germany) Test Strong Balanced Tube

$42.64 $25.59

TL Audio 5060 Compressor Vacuum Tube Preamp Compressor Japan

$675.84 $405.5

DIY 6J1 Vacuum Tube Preamp Kit For Enthusiasts DEK

$15.04 $9.03

1 x GE 6SN7GTB preamp tube, labeled CBS, Tested Good ! (N-20)

$15.03 $9.02

1 X Tung Sol 12AX7 / ECC83 pre-amp tube, Brand NEW in Box !

$19.75 $11.85

RCA 6AU6 A VACUUM TUBE SUPER SWEET TONE MATCHED PAIR SWEET TONE 04

$7.82 $4.69

Treble And Bass Adjustable Vacuum Tube Preamp HiFi Stereo Audio Pre-Amplifier

$44.0 $26.4

McIntosh C22 Stereo Vacuum Tube Preamplifier (Serviced & Recapped)

$6159.96 $3695.98

Electro-Harmonix 6922 EH Gold Pin Preamp Vacuum Tube

$41.32 $24.79

Tung-Sol EF806 SG / 6267 Gold Pin Preamp Vacuum Tube

$45.72 $27.43

Mullard 12AX7 / ECC83 New Production Preamp Vacuum Tube

$26.36 $15.82

JJ ECC83S / 12AX7 Gold Pin PREAMP VACUUM TUBE NOS NIB HICKOK Tested 👑

$27.72 $16.64

Tung-Sol 6EU7/ New Production Preamp Vacuum Tube

$33.4 $20.04

Original Marantz Vacuum tube 7 8 9 Preamp Amp Brochure Literature NOS 1996

$7.92 $4.75

Baldwin 12AX7 tube - made in Japan - 1963 - tested on Maxi-Preamp 2 tester

$26.4 $15.84

FX-Audio- TUBE-05 HiFi Vacuum 12AU7 Tube amp Treble Preamp Headphone AMPLIFIER

$105.6 $63.36

Closely Matched Pair Radiotron 12AX7 ECC83 NOS NIB Tested Strong Balanced Tube

$113.04 $67.83

Used McIntosh C20 Vacuum Tube Stereo Preamplifier Early Type Very Rare

$6159.12 $3695.48

2 Groove Tubes GT-12AY7 SINGLE 9-pin Low-gain Select Preamp Amplifier Tube

$52.8 $31.68

Ampapa A1 GE5654 Tube Phono Stage Preamp for Turntable Stereo Headphone Amp

$123.2 $73.92