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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Electro-Harmonix 12AU7 EH Preamp Vacuum Tube
Electro HarmonixElectro-Harmonix 12AU7 EH Preamp Vacuum Tube
$20.00
Sold out
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
Sold out
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
12AX7LPS Preamp vacuum tube
Electro HarmonixSovtek 12AX7LPS Preamp Vacuum Tube
$28.00
6973 Electro Harmonix Power Vacuum Tube
Electro Harmonix6973 Electro Harmonix Power Vacuum Tube
$35.00
Save $2.00
JJ ECC803S Preamp Vacuum Tube ruby tested
JJ ElectronicsJJ ECC803S Preamp Vacuum Tube
$23.00 $25.00
JJ ECC832 / 12DW7 Preamp Vacuum Tube
JJ ElectronicsJJ ECC832 / 12DW7 Preamp Vacuum Tube
$29.00
Sovtek 12AX7WC Preamp Vacuum Tube
SovtekSovtek 12AX7WC Preamp Vacuum Tube
$29.00
Tung EF806 SG Gold Pin Preamp Vacuum Tube Tung EF806 SG Gold Pin Preamp Vacuum Tube
Tung SolTung EF806 SG Gold Pin Preamp Vacuum Tube
$49.00
Penta Laboratories 12AT7 Preamp Vacuum Tube Penta Laboratories 12AT7 Preamp Vacuum Tube
Penta LaboratoriesPenta Laboratories 12AT7 Preamp Vacuum Tube
$23.00
PSVANE 12AX7 Preamp Vacuum Tube
PSVANEPSVANE 12AX7 Preamp Vacuum Tube
$17.50
Ruby Shuguang 7025 Preamp Vacuum Tube Ruby Shuguang 7025 Preamp Vacuum Tube
RUBY TubesRuby Shuguang 7025 Preamp Vacuum Tube
$30.00
Electro-Harmonix 12AY7 Preamp Vacuum Tube
Electro HarmonixElectro-Harmonix 12AY7 Preamp Vacuum Tube
$26.00
Golden Dragon ECC81 12AT7 Preamp Vacuum Tube
GOLDEN DRAGONGolden Dragon ECC81 12AT7 Preamp Vacuum Tube
$35.00
General Electric 12AX7A/7025
General ElectricGeneral Electric 12AX7A/7025
$100.00
Mesa Boogie 12AX7 Preamp Vacuum Tube
Ruby TubesMesa Boogie 12AX7 Preamp Vacuum Tube
$26.00
Mesa Boogie 12AT7 Preamp Vacuum Tube
Ruby TubesMesa Boogie 12AT7 Preamp Vacuum Tube
$29.00
JJ E83CC / 12AX7 Preamp Vacuum Tube
JJ ElectronicsJJ E83CC / 12AX7 Preamp Vacuum Tube
$28.99
Mullard 12AT7 Preamp Vacuum Tube
MullardMullard 12AT7 Preamp Vacuum Tube
$27.99
Mullard 12AU7 Preamp Vacuum Tube
MullardMullard 12AU7 Preamp Vacuum Tube
$27.50
Electro Harmonix 12AX7EH Gold Pin Electro Harmonix 12AX7EH Gold Pin
Electro HarmonixElectro Harmonix 12AX7EH Gold Pin
From $39.95