Presonus Studio Channel Vacuum-Tube Channel Strip 2777400102

$290.4 $174.24

Friedman IR-D

$440.0 $264.0

Fosi Audio BOX X4 Tube Amplifier Phono Preamp for MM Turntable Phonograph 5654W

$46.99 $28.19

AUDIBLE ILLUSION [ TUBE PRE AMPLIFIER ]

$616.0 $369.6

Tubesteader Magnezium Dual-Channel Preamp Effects Pedal

$307.12 $184.28

Bellari RP 503 Tube Channel Rack-Mount Pre-Amp and Processor - Blue (GAL147045)

$264.0 $158.4

Emotive Audio Sira Stereo Tube Preamplifier

$2074.16 $1244.5

1 X Tung Sol 5751 pre-amp tube, Brand New in Box !

$27.78 $16.67

MENGYUE EL34 Tube Amplifier With TUNG SOL 12AX7 Gold Pin Drivers EXCELLENT

$286.0 $171.6

Radio Tubes 5692 6SN7GTB 6SN7 CBS JAN CHY 2800/2900 2700/2700 Matched Pair

$122.32 $73.4

HiFi JADIS JP200 Stereo Preamplifier Board Kit 12AT7 / ECC81 Tube Preamp Board

$44.0 $26.4

DYNACO-DYNAKIT ASSEMBLY INSTRUCTIONS FOR TUBE MODEL PAS-2 & 3 PREAMP. SCHEMATICS

$18.04 $10.83

Tube Preamp Pre-amp for Turntable Phono Vacuum Preamplifier

$18.78 $11.27

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

$51.94 $31.17

Guyatone HGP-1 Hyper Instrument Processor Tube Preamp Made in JAPAN Tested 100V

$271.92 $163.15

New PRT05A 12AX7 Tube Remote Control Preamplifier HiFi Stereo Vacuum Tube Preamp

$198.0 $118.8

12AX7A Amperex Red Tip Medical Grade Preamp2/TV7 Tested ( 1 ) Tube Lot

$176.0 $105.6

ART TUBEMIX Five Channel Mixer with USB and Assignable 12AX7 Tube OPEN BOX

$175.1 $105.06

Sylvania Gold Pin 6201 12AT7 tube. AT1000 Test 114%/112% gm. 1958

$16.72 $10.04

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

$142.56 $85.54

Lot 6 Box Valves Vintage Radio Audio Radiotron

$8.58 $5.15

Tube Preamp Vacuum Electron Tube Valve Preamp Phono Preamp For Turntable

$18.61 $11.17

Presonus TubePre V2 Vacuum Tube Preamp + DI Direct Box, For Recording/Live Sound

$105.6 $63.36

1989 Marshall Series 9000 Model 9001 - All Tube Guitar Preamplifier Rackmount

$528.0 $316.8

ART USB Dual Pre 2 Channel Preamp w/ 9V Alkaline Battery & XLR Cable

$88.0 $52.8

Sylvania 5814 Gold Brand Gold Pin Tube 3-Mica w/ Supports - Amplitrex 100%/100%

$39.6 $23.76

JJ E88CC / 6922 Gold Pin Preamp Vacuum Tube

$30.8 $18.48

Six (6) Soft Tube Cushions For McIntosh C22 Preamp / Fix Your Old Hard Cushions

$78.33 $47.0

PreSounus Tube Preamp 16 Watts

$61.6 $36.96

Upgraded 6K4 Tube Preamplifier HiFi Tube Preamp Audio Amp Home Theater DIY USA

$24.42 $14.66

Fender Roc-Pro 1000 Tube Preamp Guitar Amp Head, 100 watts with Footswitch

$308.0 $184.8

Raytheon 12AX7A 12AX7 ECC83 Black Plate Tubes, Tested, Matched Pair, Baldwin

$88.0 $52.8

Behringer TUBE ULTRAGAIN MIC500USB Audiophile Vacuum Tube Preamplifier

$87.12 $52.28

TC Electronic BAM 200 200W Bass Amp Head

$157.53 $94.52

RCA 6189 / 12AU7 Vacuum Tube Pre-Amp, Black Plate, Made in USA, Vintage

$10.52 $6.31

Tung Sol 12AX7A ECC83 Vacuum tube

$13.2 $7.92

RARE 1933 RCA PA 90 A1 Vacuum Tube Preamp Preamplifier

$1320.0 $792.0

TC Electronic Ampworx Dual Wreck Preamp Pedal Black

$131.12 $78.68

Heathkit SP-2 All new pre-amplifier circuit board. SP-1

$83.6 $50.16

Beyond / Tube Preamp

$286.72 $172.03

12BH7A AMPEREX Globe, Holland, Gray Plate Preamp Tube in Box, Tested

$16.72 $10.04

Matched Pair Electro Harmonix 6SN7 pre-amp tubes, NEW

$47.32 $28.4

Telefunken V72A x3 Tube Microphone Preamp Mic Pre TAB V72 unracked 1 of 3 as-is

$2024.0 $1214.4

1 Dynakit PAS2 Preamp-stereo tube preamp

$374.0 $224.4

Aphex Model 107 Tubessence Stereo Tube Microphone Preamplifier

$132.0 $79.2

Nelson Pass B1 with Korg Nutube Triode - assembled preamplifier board - HiFi

$264.0 $158.4

Marshall ECC83 12AX7 Triple Mica Radio Amp Preamp Tube

$7.88 $4.73

MX110 Vacuum Tube Tuner Preamp "z-series From vintage audio collection VERY NICE

$1051.6 $630.96

Vintage Tube Amplifier Nortronics RA-100 Mic/Tape Playback Diy Mic Pre Project

$52.76 $31.66

Mullard 12AX7 Russian Preamp Tube (2-pack) Bundle

$48.19 $28.92

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

$30.8 $18.48

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

$96.8 $58.08

6AS5 Vacuum Tube Various Brand ( PRICE FOR ONE TUBE )

$1.72 $1.03

Synergy DRECT 2-Channel All-Tube Preamp Module

$352.0 $211.2

Frenzel Rocker 800Z Guitar Tube Preamp

$440.0 $264.0

837 RCA Valve Vintage Hifi Audio Preamp Tested 100% Nos

$8.58 $5.15

Guitar Tube Preamp Dr. Bumble

$236.72 $142.04

Dumble Manzamp Preamp & Odyssey Concert Amplifier w/ Two 2x12 Speakers #49935

$307995.6 $184797.36

DYNACO-DYNAKIT ASSEMBLY INSTRUCTIONS MODEL PAS-2X & 3X. TUBE PREAMP. SCHEMATICS

$4.41 $2.64

AKAI M-8 TUBE MIC PRE A+RECAP+ MIC TRANS & CUSTOM CASE- EZ AMP RCA 77 SHURE SM-7

$329.96 $197.98

HiFi Remote Volume Control Stereo Tube ECC83 Preamplifier Base On JP200 Preamp

$404.8 $242.88

HiFi MM Vacuum Tube Phono Stage Preamp Stereo Audio Preamplifier for Turntables

$413.6 $248.16

tested tube pre amp power transformer 115/230 to 125, 65CT, 25CT, 3V, and 2.5V

$16.72 $10.04

Fosi Audio BOX-X2 Phono Tube Preamp MM Turntable Input Stereo Audio Preamplifier

$58.08 $34.85

Little Bear P51 Tube Pre Amp Untested

$44.0 $26.4

Tube preamp based on Diezel

$272.8 $163.68

( 4 ) JAN 6CG7 6FQ7 Audio Tube Valve 1970'S NOS PreAmp We Center Divider Piece

$92.4 $55.45

ART Pro MPA II 2-channel Tube Microphone Preamp - GREAT CONDITION!

$334.4 $200.64

8 TUBE AMP/PREAMP DAMPERS FOR 12AX7/12AU7/12AT7/ECC83/EL84/6922/EL84/5751/5687

$14.01 $8.41

Albit A1992B Pro High-End Tube Bass Preamp Made in Japan

$457.6 $274.56

ART Tube MP Professional Mic Preamp/Processor

$96.8 $58.08

Synergy OS 2-channel Preamp Module

$299.2 $179.52

Vintage Altec Lansing 342B Tube 7027A PA Mixer Amplifier Pre Amp

$519.21 $311.53

HiFi GE5654 Tube Preamp Bluetooth 5.0 Audio Receiver USB DAC Headphone Amp APTX

$79.2 $47.52

Sovtek 12AX7LPS Preamp Vacuum Tube

$24.6 $14.76

GE General Electric 12AX7 ECC83 Vacuum tube

$10.56 $6.34

One(1) TV7D/U UNUSED 1945 Tung-Sol JAN 6SU7GTY Round Plates & Round Mica Tube

$175.96 $105.58

Radio Tubes 6SN7GTB 6SN7 GE Side Getter D Test 3150/2950 2900/3050 Matched Pair

$18.48 $11.09

Low Distortion Circuit Tube Preamplifier Preamp Board DIY Kit for 12AX7 12AU7

$10.55 $6.33

1952 RCA 6SN7GT Grey Glass Low Noise Preamp Tubes Pair

$79.2 $47.52

COUNTERPOINT SA-5000 Hybrid Tube Preamplifier - Fully Upgeaded.

$3300.0 $1980.0

Groove Tubes - The Brick - Tube Mic Preamp/DI

$528.0 $316.8

Vacuum Tube, 12AX7B, Shuguang, Preamp

$14.92 $8.95

dbx 376 Tube Channel Strip with Digital Out - Silver

$154.0 $92.4

Universal Audio UA 6176 Vintage Channel Strip 610B Tube Preamp 1176LN

$1319.12 $791.48

Vintage HAMMOND H-AO-69-1 Preamplifier with Tubes (3) 12AX7, 12AU7, (2) 6267

$97.24 $58.35

PreSonus TubePre Preamp for Recording - XLR/1/4 TRS Input - 1/4 TRS/XLR Output

$70.41 $42.24

Rogue Athena Tube Preamplifier Remote!

$1760.0 $1056.0

Altec/Peerless 15095 Input Transformer - Tube Preamp 1567A Mic MC Step-Up

$95.92 $57.56

Guitar Tube Preamp UBERTONE

$184.8 $110.89

Slyvania electronic tube 12AV6 Audio Preamplifier

$7.92 $4.76

HiFi 6922 Vacuum Tube Preamplifier Remote Control D.Klimo Stereo Audio Preamp

$403.04 $241.83

Bellari VP130 MK2 Tube Phono Preamp / Headphone amp

$237.6 $142.56

Shuguang 12AX7B Triple Mica Amp Radio Preamp Tube Guaranteed

$8.76 $5.26

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

$97.42 $58.45

Sound Pre Amp Adjustable Audio Preamplifier Preamp Tube Board Home Theater DIY

$19.05 $11.43

HiFi Vacuum Tube Preamp Home Stereo Audio Buffer Pre-Amplifier DIY Kit/Finished

$226.68 $136.01

Synergy Bogner Uberschall Dual Channel Tube Preamp Module

$337.92 $202.75

SA-20 HiFi Vacuum Electronic Tube Preamp Amplifier Bluetooth USB Flash Drive

$68.9 $41.34

12AX7A Amperex Red Tip Medical Grade Preamp2/TV7 Tested ( 1 ) Tube Lot

$176.0 $105.6