ruby tube on amp

Preamp Tubes

Ruby tubes have been carefully matched and tested. Our preamp tubes are designed to deliver superior sound quality and are compatible with a wide range of amplifiers and audio systems

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JJ ECC83S / 12AX7 Preamp Vacuum Tubes JJ ECC83S / 12AX7 Preamp Vacuum Tubes
JJ ElectronicsJJ ECC83S / 12AX7 Preamp Vacuum Tubes
From $19.00
Ruby 12AX7AC5 Preamp Vacuum Tube Ruby 12AX7AC5 Preamp Vacuum Tube
RUBY TubesRuby 12AX7AC5 Preamp Vacuum Tube
From $27.00
Ruby 12AX7WBC Preamp Vacuum Tube Ruby 12AX7WBC Preamp Vacuum Tube
RUBY TubesRuby 12AX7WBC Preamp Vacuum Tube
From $30.00
12AX7C Groove Tubes Preamp Vacuum tube 12AX7C Groove Tubes Preamp Vacuum tube
Groove Tubes12AX7C Groove Tubes Preamp Vacuum tube
From $40.00
12AX7EH Electro Harmonix
Electro Harmonix12AX7EH Electro Harmonix
$22.00
Electro Harmonix 12BH7 Preamp Vacuum Tube
JJ ElectronicsElectro Harmonix 12BH7 Preamp Vacuum Tube
$33.00
Save $1.50
JJ ECC81 / 12AT7 Preamp Vacuum Tube JJ ECC81 / 12AT7 Preamp Vacuum Tube
JJ ElectronicsJJ ECC81 / 12AT7 Preamp Vacuum Tube
From $35.00
JJ 12AU7 Preamp Vacuum Tube
JJ ElectronicsJJ 12AU7 Preamp Vacuum Tube
$25.00
Ruby 12AX7AC7 Preamp Vacuum Tube
RUBY TubesRuby 12AX7AC7 Preamp Vacuum Tube
$25.00
RUBY 7025SS / 12AX7 Preamp Vacuum tube
RUBY TubesRUBY 7025SS / 12AX7 Preamp Vacuum tube
$25.00
Genalex 12AX7 Gold Lion Preamp Vacuum Tube
GenalexGenalex 12AX7 Gold Lion Preamp Vacuum Tube
$25.00
Mullard CV4004 Preamp Vacuum Tube Mullard CV4004 Preamp Vacuum Tube
MullardMullard CV4004 Preamp Vacuum Tube
From $25.00
7025 Electro Harmonix Preamp Vacuum Tube
Electro Harmonix7025 Electro Harmonix Preamp Vacuum Tube
$27.00
Sold out
Sovtek 12AX7WA / 7025 Preamp Vacuum Tube
SovtekSovtek 12AX7WA / 7025 Preamp Vacuum Tube
$25.00
Sovtek 7025 / 12AX7WB Preamp Vacuum Tube Sovtek 7025 / 12AX7WB Preamp Vacuum Tube
SovtekSovtek 7025 / 12AX7WB Preamp Vacuum Tube
$27.50
Sold out
Svetlana 12AX7 Preamp Vacuum Tube
SvetlanaSvetlana 12AX7 Preamp Vacuum Tube
$28.99
Electro-Harmonix 12AT7 Preamp Vacuum Tube
Electro HarmonixElectro-Harmonix 12AT7 Preamp Vacuum Tube
$25.00
Sold out
Electro-Harmonix 12AU7 EH Preamp Vacuum Tube
Electro HarmonixElectro-Harmonix 12AU7 EH Preamp Vacuum Tube
$20.00
12AX7 6922 Electro Harmonix Preamp Vacuum Tube
Electro Harmonix12AX7 6922 Electro Harmonix Preamp Vacuum Tube
$25.00
Sold out
MULLARD 12AT7 WA CV4024 KQDD/K
MullardMULLARD 12AT7 WA CV4024 KQDD/K
$50.00
Full Music 12AX7 Preamp Vacuum tube Full Music 12AX7 Preamp Vacuum tube
Full MusicFull Music 12AX7 Preamp Vacuum tube
$25.00
Jan Philips 12AT7WC Preamp Vacuum tube Jan Philips 12AT7WC Preamp Vacuum tube matched pair
Jan PhillipsJan Philips 12AT7WC Preamp Vacuum tube
From $29.50
Sold out
Electro-Harmonix EF86 Preamp Vacuum Tube
Electro HarmonixElectro-Harmonix EF86 Preamp Vacuum Tube
$30.00
12AY7EH elctro harmonix preamp vacuum tube
Electro HarmonixElectro-Harmonix 12Y7EH Preamp Vacuum Tube
$26.90