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The MESA 5881 STR 425 is a military grade 6L6 designed with an emphasis on rugged durability and the capability to handle higher voltage requirements. It produces a full bass and rich midrange with tapered highs tha...
The 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...
The 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...
The 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.
Examples of...
Expansion 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...
The 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.
Examples of...
The 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...
The 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.
Examples of...
Svetlana 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....
Svetlana 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....
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.
