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T-12AT7-CT-12AT7-CItem ID: 00442312AT7 Ruby
12AT7 Preamp tube, Ruby brand
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$9.55
$8.60
T-12AU7-CT-12AU7-CItem ID: 00443412AU7 RUBY
12AU7 Ruby brand preamp tube
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$9.55
$8.60
T-12AX7A-C5T-12AX7A-C5Item ID: 004455Ruby 12AX7A-C5 Vacuum Tube
9 pin miniature preamp tube (Amplification Factor = 100). This is the ubiquitous Chinese 12AX7 with added selection. The gain is high and the American "Ruby Tubes" must be filtering out the noisiest ones. For more information about our 12AX7 tubes, see our tech corner article on 12AX7s.
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$13.95
$12.56
T-5AR4-CT-5AR4-CItem ID: 0045525AR4 Ruby
5AR4 Ruby, Rectifier Tube
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$15.00
$13.50
T-5U4G-CT-5U4G-CItem ID: 004564Ruby 5U4GC Vacuum Tube
Ruby tubes are sorted and selected for the maximum quality possible. The sorting process eliminates failures and ensures satisfaction.
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$12.20
$10.98
Out of Stock
T-6550A-STRT-6550A-STRItem ID: 0046016550A STR
6550A-STR, Ruby brand, Power Tube
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$28.75
Starting at $25.88
T-6L6GC-M-STRT-6L6GC-M-STRItem ID: 0047386L6GC-M-STR, Ruby Tubes
Octal power tube (Max Plate Watts = 30W)
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$15.00
Starting at $13.50
T-6V6GT-STRT-6V6GT-STRItem ID: 0051776V6GT-STR, Ruby
Tetrode, Beam Power
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$14.00
Starting at $12.60
T-EL34B-STRT-EL34B-STRItem ID: 004848EL34B STR, Ruby Tubes
Octal power tube (Max Plate Watts = 25W)
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$15.75
Starting at $14.18
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