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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Vacuum tube with JJ logo and model number on a white background Two vacuum tubes with JJ logo and ECC83S model number on a white background
JJ ElectronicsJJ ECC83S / 12AX7 Preamp Vacuum Tubes (Matched)
From $16.50 $19.00
Ruby 12AX7AC5 Preamp Vacuum Tube (Matched) Ruby 12AX7AC5 Preamp Vacuum Tube (Matched)
RUBY TubesRuby 12AX7AC5 Preamp Vacuum Tube (Matched)
From $27.00
12AX7C Groove Tubes Preamp Vacuum tube 12AX7C Groove Tubes Preamp Vacuum tube
Groove Tubes12AX7C Groove Tubes Preamp Vacuum tube
From $40.00
JJ ECC81 / 12AT7 Preamp Vacuum Tube JJ ECC81 / 12AT7 Preamp Vacuum Tube
JJ ElectronicsJJ ECC81 / 12AT7 Preamp Vacuum Tube
From $20.00
12AX7EH Electro Harmonix
Electro Harmonix12AX7EH Electro Harmonix
$30.00
Ruby 12AX7WBC Preamp Vacuum Tube Ruby 12AX7WBC Preamp Vacuum Tube
RUBY TubesRuby 12AX7WBC Preamp Vacuum Tube
From $30.00
JJ 12AU7 Preamp Vacuum Tube
JJ ElectronicsJJ 12AU7 Preamp Vacuum Tube
$25.00
JJ 12BH7-A Preamp Vacuum Tube JJ 12BH7-A Preamp Vacuum Tube
JJ ElectronicsJJ 12BH7-A Preamp Vacuum Tube
From $26.00
Ruby 12AU7C Preamp Vacuum Tube
RUBY TubesRuby 12AU7C Preamp Vacuum Tube
$22.00
JJ ECC88 / 6922 Preamp Vacuum Tube JJ ECC88 / 6922 Preamp Vacuum Tube
JJ ElectronicsJJ ECC88 / 6922 Preamp Vacuum Tube
From $27.00
Ruby 12AT7C Preamp Vacuum Tube
RUBY TubesRuby 12AT7C Preamp Vacuum Tube
$22.00
Electro Harmonix 12BH7 Preamp Vacuum Tube
JJ ElectronicsElectro Harmonix 12BH7 Preamp Vacuum Tube
$33.00
Ruby 12AX7A Preamp Vacuum Tube / SS Silver Special Ruby 12AX7A Preamp Vacuum Tube / SS Silver Special
RUBY TubesRuby 12AX7A Preamp Vacuum Tube / SS Silver Special
$75.00
Sold out
Ruby 12AX7AC7 Preamp Vacuum Tube
RUBY TubesRuby 12AX7AC7 Preamp Vacuum Tube
$25.00
Sold out
RUBY 7025SS / 12AX7 Preamp Vacuum tube
RUBY TubesRUBY 7025SS / 12AX7 Preamp Vacuum tube
$25.00
Sold out
Genalex 12AX7 Gold Lion Preamp Vacuum Tube
GenalexGenalex 12AX7 Gold Lion Preamp Vacuum Tube
$25.00
Mullard 12AX7 Preamp Vacuum Tube
MullardMullard 12AX7 Preamp Vacuum Tube
$27.49
Mullard CV4004 / 12AX7 Preamp Vacuum Tube Mullard CV4004 / 12AX7 Preamp Vacuum Tube
MullardMullard CV4004 / 12AX7 Preamp Vacuum Tube
From $25.00
Sold out
Tung Sol 12AX7 Preamp Vacuum Tube
Tung SolTung Sol 12AX7 Preamp Vacuum Tube
$25.00
7025 Electro Harmonix Preamp Vacuum Tube
Electro Harmonix7025 Electro Harmonix Preamp Vacuum Tube
$27.00
Sovtek 12AX7WA / 7025 Preamp Vacuum Tube
SovtekSovtek 12AX7WA / 7025 Preamp Vacuum Tube
$25.00
Sovtek 7025 / 12AX7WB Preamp Vacuum Tube
SovtekSovtek 7025 / 12AX7WB Preamp Vacuum Tube
$100.00
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