Brand New Gain Tested Electro-Harmonix 12BH7 Vacuum Tube

$33.33 $20.0

Gain Matched Septet (7) JJ 6922 / E88CC / 6DJ8 / ECC88 Vacuum Tubes - Brand New

$178.84 $107.31

Little Dot MKII MK2 SEPP 6J1X2 6N6 X2 Tube Headphone Amplifier Pre-Amplifier

$153.12 $91.87

SA-1000 Audiophile Tube Preamplifier Audio Electric Tube 4 Inputs G4M2

$68.37 $41.03

Tube-T5C HiFi Vacuum Tube Preamp Bluetooth 5.0 Receiver USB DAC Headphone Amp ts

$83.86 $50.32

3) RCA Smoked Glass 6SN7GT Black Plates ~ Strong Lot Nothing Under 92%

$52.76 $31.66

(1) Sovtek 12AX7WA / 7025 / ECC83 Vacuum Tube Pre-Amp Guitar UNUSED

$27.78 $16.67

Tube Amplifier Hifi Sound System Pre-amp for Home Theater Turntable

$18.54 $11.12

Presonus BlueTube DP v2 2-Channel Mic / Instrument Tube Preamp, New!

$224.4 $134.64

1968 NOS SiemensMunich A48K ~ HolyGrail Germany E88CC Preamp Audio Tube w/ Box

$192.72 $115.64

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

$29.0 $17.4

Mini GE5654 Tube Phono Preamp Home Stereo Audio Preamp w/VU Meter Headphone Amp

$57.2 $34.32

Closely Matched Pair Sylvania 6SN7GT VT-231 Tested Like NOS Tube

$218.64 $131.19

RCA 6CS7 TUBE MATCHED QUAD GREY PLATE SWEET TONE 1960s Leben CS-600 CS-660P

$137.18 $82.31

Custom padded cover for McIntosh C1100T Vacuum Tube Preamplifier

$33.44 $20.07

EKJapan EK-JAPAN ELEKIT Vacuum Tube Pre-amp Kit TU-8500 White phonoequalizer amp

$427.68 $256.61

New Genalex Reissue ECC82 12AU7 Gain Matched Trio (3) GOLD PINS Vacuum Tubes

$179.4 $107.64

SUCA AUDIO DAC-T1 Tube Preamplifier Preamp Hifi Bluetooth 5.0 DAC Headphone Amp

$138.1 $82.86

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

$6.87 $4.12

Bass Preamp Low Pass Volume Controlled Preamplifier Board for NE5532 Subwoofer

$12.54 $7.52

HiFi Class A 6P1 Vacuum Tube Amplifier Stereo Audio Power Amp Assembled/DIY Kit

$289.52 $173.71

Closely Matched Quad Raytheon 6J5GT One Tube Missed Key Life Test Excellent Tube

$42.64 $25.59

Standard Tube Set for Orange Rockerverb 50 MKII

$161.53 $96.92

ECC81 x2 (12AT7) RFT Germany Vacuum Preamp tubes. Double Triode tube. Tested

$17.61 $10.56

GE 5 Star 5751/12AX7 Tube Tested Audio Preamp Electron Amplifier Radio Vacuum

$52.8 $31.68

RARE MULLARD HEATH 12AU7 ECC82 PREAMP TUBE MADE IN GREAT BRITAIN TESTS PERFECT

$43.96 $26.38

Pre-amp for Phonograph Pre-amp for Record Player Vacuum Pre-amp Tube Amplifier

$22.88 $13.73

RCA 12AU7A Clear Top Vacuum Tubes Quad 5814A ECC82 Preamp Amp Audio Tuners.

$31.68 $19.01

Matched Pair Sylvania 12AU7A/ECC83/5814 Vacuum Audio Tube

$103.49 $62.1

SA-60 HiFi Vacuum Tube Audio Sound Processor Preamp Pre-Amplifier TPA6120 5532

$52.47 $31.48

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

$20.11 $12.07

Electro-Harmonix 12AX7EH Preamp Tube

$21.96 $13.18

NOS Rare 1963 Matsu/Mullard Preamp Audio Mic Tube 6DJ8 7DJ8 6922 ~ OrganicTone

$110.0 $66.0

Phono Preamp for Turntable Stereo Tube Amplifier High Fidelity

$19.36 $11.62

Rock N Roll Reverb D-Lux 20 Watt Plexi Guitar Tube Combo Amplifier ROCKNROLLAMPS

$2463.96 $1478.38

1 x GE 6SN7GTA preamp tube, labeled Motorola, Tested Good ! (N-15)

$15.03 $9.02

Package: Presonus StudioChannel Studio Channel Tube Mic Preamp + 2 Studio Mics

$395.92 $237.55

5 x GE 6189 / 12AU7WA . ECC82 preamp tubes (TESTED W/ TV-7D/U)

$44.0 $26.4

Brand New Mullard Reissue 6V6 6V6GT Current Matched Pair (2) Vacuum Tubes

$96.77 $58.06

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

$364.73 $218.84

Eastern Transmission Audio 6N11 6N3 Split Preamplifier Tube Preamp+Power Supply-

$271.05 $162.63

1 x NOS Tungsram PCC88 - 7DJ8 Test V.STRONG Dual Triode Preamp Audio Vacuum Tube

$16.46 $9.88

Groove Tubes® GT-ECC83-S SELECT, 5550112391

$26.4 $15.84

5U4GB Vacuum Tube GE Tall Bottle VTG Power Supply Preamps Amp Mixers Audio HiFi.

$10.56 $6.34

CBS-Hytron JAN-CHY 5Y3WGTA Missed Key Black Plate D-Getter Tested Tube

$8.32 $4.99

Orange Dark Terror Tube Set with Matched Power Tubes, Ruby and JJ Brand Tubes

$98.53 $59.12

Closely Matched Pair Tung-Sol 5Z3 ST Same Date NOS NIB Tested Balanced Tube

$60.24 $36.15

JJ Electronics - Ruby ECC83S / 12AX7A CZ HG Preamp Tubes Matched Pair

$37.77 $22.67

QTY-3 SYLVANIA 6GH8A GREY PLATES PREAMP VACUUM DYNACO SUB TUBE Tested NOS SYL-11

$30.76 $18.46

New Plate Current Tested Svetlana EL34 Vacuum Tube

$42.34 $25.41

Mullard 12AX7 / ECC83 pre-amp tubes, TESTED STRONG

$77.44 $46.47

GE 5Y3GT Label McIntosh Tested Good Tube

$10.96 $6.58

JJ Electronic 12AT7 / ECC81 Preamp Vacuum Tube

$24.55 $14.73

Vintage Raytheon 12AU7A/ECC82/5814 Preamp Vacuum Tube Valve- Bangybang.tube

$36.96 $22.18

6J1 Vacuum Electron Tube Valve Preamp Amplifier Board Headphone Amp Parts

$14.2 $8.52

1pc PRT07A electronic tube preamp (M7) circuit Kit board

$26.89 $16.14

Assembled DC12V 6N8P (6H8C 6SN7) Vacuum Tube Car Audio Preamplifier Board

$48.4 $29.04

Vintage Soviet Republic JJ ECC83S Audio Preamp Amplifier Vacuum Electron Tube

$19.36 $11.62

SA-60 PJ MIAOLAI Hifi Audio Amplifier 2 In 4 Out Electric Tube Preamplifier

$64.5 $38.7

Lot Of 3 4DE6 TUBE UNTESTED VINTAGE VACUUM PREAMP TUBE

$17.61 $10.56

Vintage RCA 6SN7 GTA Tube Audio Amplifier Preamp Amp Radio Electron Vacuum Used

$11.88 $7.13

T9 Preamplifier 2x6E2 HiFi Electronic Tube Amp MM/MC Turntable Phono Mic Amp

$85.4 $51.24

1pc (One) Amperex 12AU6 HF94 Same Date NOS NIB Life Test Excellent Tube

$4.8 $2.88

Vintage SYLVANIA E7V 12AU7A ECC82 Pre Amp Vacuum Tube Square Getter STRONG

$39.6 $23.76

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

$19.36 $11.62

Phono Amplifier for Turntable Pre Stereo Tube Drive Pre-amp Preamp

$20.11 $12.07

XDUOO MT-603 Tube Preamplifier Tube Amp with Four Groups of AUX Input ot25

$91.13 $54.68

Matched Pair Sylvania 6JN6 Same Date NOS NIB LifeTest Excellent Tube

$25.04 $15.03

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

$24.64 $14.78

RCA 5Z3 Black Plate Hanging Filament Tested Good Balanced Tube

$21.52 $12.91

50BM8 / UCL82 Vacuum Tubes - Various Brands - $9.90/ea (TESTED & GUARANTEED)

$6.53 $3.92

RCA 6CW4 6DS4 Nuvistor NOS NIB Life Test Excellent Emission Over 100% Tube

$12.72 $7.63

Preamplifier for Home Theater System Vacuum Electron Tube Valve

$24.01 $14.41

2 RCA Electron Tube IP40 NOS Radio Audio Pre-amp Vacuum Tube NEW IP 40

$17.6 $10.56

Matched Pair Test NOS Sylvania JG-12AU7WA 6189 12AU7 Vacuum Tubes - TV7 Tested

$26.4 $15.84

Tube Preamp Fever Hifi 6J5 Vacuum Tube Preamp Bluetooth Amplifier-

$14.67 $8.8

LUXMAN CL-32 Control Amplifier Maintenance Preamplifier Kit

$491.82 $295.09

Vintage 6SL7 GT Motorola Vacuum Tube Tested U.S.A. 274 9-35 Vacuum Preamp Audio

$12.76 $7.66

(2) AMPEREX 6DJ8 / ECC88 A FRAME DIMPLED DISC GETTER TUBES - MATCHED - BALANCED

$61.6 $36.96

TA7318P Amp preamp VU header Meter db level header PCB driver board

$11.37 $6.83

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

$12.72 $7.63

GE 12AX7 ECC83 7025 Long Grey Plate O-Getter Tested Good Balanced Tube

$21.52 $12.91

Standard Tube Set for Marshall Mark II JMP 2203

$134.34 $80.6

NOS SYLVANIA 6AN8A Audio Preamplifier VACUUM TUBE Tested Strong USA 4.2917-D

$19.32 $11.59

D KLIMO MERLINO 6DJ8(ECC88) Vacuum Tube Preamp Audio Pre-Amplifier Board DIY Kit

$104.5 $62.7

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

$44.44 $26.67

Vintage RCA 12AU7A ECC82 Tube Raytheon? Preamp Amplifier Audio Vacuum radio amp

$26.4 $15.84

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

$66.77 $40.06

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

$66.78 $40.07

Phono Preamp for Turntable Stereo Tube Amplifier High Fidelity

$20.06 $12.04

Lot Of 3 12AT7 Preamp Vacuum Tubes Made In Japan TV7 Tested

$17.61 $10.56

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

$44.42 $26.65

Tungsol JW 2C51 Square Getter Preamp Tube Tests NOS

$31.68 $19.01

Closely Matched Pair RCA 12AU7A ECC82 Same Date NOS NIB Clear Top Tube

$86.64 $51.99

1 x NOS Siemens & Halske E188CC - 7308 Test STRONG G6 Silver Shield Triode Tubes

$114.4 $68.64

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

$29.57 $17.75

1pc (One) RCA 12AU6 HF94 Label Motorola Same Date NOS Life Test Excellent Tube

$4.8 $2.88

Raytheon 12AT7 Vintage Guitar Amplifier Vacuum Tube NOS NIB Audio Preamp Radio

$61.6 $36.96

7-band EQ Tube Preamp Equalizer XLR Pre-Amplifier for Home Speaker

$126.59 $75.96

New Matched Trio (3) Sovtek 6H30Pi Vacuum Tubes

$145.69 $87.42