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Mesa/Boogie EL34 STR 447 Duet Power Tubes
$99.00The MESA EL-34 STR 447 is our very best overall, premium grade NOS equivalent EL-34 and our tube of choice in the production of all new MESA EL-34 powered models. It offers traditional EL-34 tone & feel – urgent and...6 Payments of $16.50
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Mesa/Boogie KT88 STR 488 Duet Power Tubes
$187.00The MESA STR 488 is the premium KT-88 of choice for our all-tube Prodigy and Strategy Bass Amps. Capable of delivering incredible power and fundamental bass punch, the STR 488 also offers the perfect blend of balanc...6 Payments of $31.17
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Orange Valve Tester MKII Expansion Module A - 6SN7
$249.00The Expansion Module is an optional accessory (purchased separately) to provide testing and evaluation for a valve not included in the many valves already covered by the Orange Valve Tester MKII. Â Examples of...6 Payments of $41.50
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Orange Valve Tester MKII Expansion Module B - GZ34
$249.00Expansion Modules Available The Orange Valve Tester MKII’s new optional expansion modules will be particularly appealing to Hi-Fi enthusiasts. It allows the testing of directly heated valves such as the 300B and...6 Payments of $41.50
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Orange Valve Tester MKII Expansion Module C - EF86
$249.00The Expansion Module is an optional accessory (purchased separately) to provide testing and evaluation for a valve not included in the many valves already covered by the Orange Valve Tester MKII. Â Examples of...6 Payments of $41.50
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Orange Valve Tester MKII Expansion Module D - EZ80
$249.00The Expansion Module is an optional accessory to provide testing and evaluation for a valve not included in the many valves already covered by the Orange Valve Tester MKII.  The Orange Valve Tester MKII’s new...6 Payments of $41.50
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Orange Valve Tester MKII Expansion Module E - 300B
$249.00The Expansion Module is an optional accessory (purchased separately) to provide testing and evaluation for a valve not included in the many valves already covered by the Orange Valve Tester MKII. Â Examples of...6 Payments of $41.50
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Orange VTMKII Desk Mounting Bracket
$49.99Valve Tester MKII Bracket for mounting on surface...4 Payments of $12.50
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Svetlana 12AX7 Russian Pre Amp Vacuum Tube
$24.95Svetlana Tubes are made in Russia and are renown for their tone and character. Svetlana offers a wide selection of tubes for both hi-end audio and guitar amplification....h m s
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Svetlana EL34 Russian Power Amp Vacuum Tube
$34.95Svetlana Tubes are made in Russia and are renown for their tone and character. Svetlana offers a wide selection of tubes for both hi-end audio and guitar amplification....h m s
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Tung Sol 6550 Power Amp Vacuum Tubes
$134.95The Tungsol 6550 Tube is made in Russia and renown for its tone and character. It is available here in a matched pair (set of two tubes)....h m s
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Tung Sol 6SL7 Dual Triode Tube
$49.95The best current production 6SL7 available. NOS performance and sound at a fraction of the price. Sweeten up the preamp section of that Vintage Ampeg B-15. The Tung-Sol 6SL7 name and trademark have been acquir...h m s
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Guitar Amp Vacuum Tubes
Don't let worn, failing, or compromised vacuum tubes (valves) rob your amplifier of its precious tone! Available individually or in matched sets, AMS provides a full range of preamp and power amp tubes to deliver the ultimate in amplifier performance.