Product Information
Designed to make testing valves easy, the Orange Valve Tester MKII gets a glowing recommendation from us.
Valve tester – the ultimate accessory for any valve enthusiast
The Orange Valve Tester MKII makes the perfect buy for any valve enthusiast. Valve amps and other devices with valve sections have a unique sound. What’s more, that unique sound can be further tuned by fitting different brands of valves. If you regularly change, experiment or upgrade your device’s valves, a valve tester is well worth having. It takes the guess work out of condition, making it easy to test the valves’s strength and life expectancy. The Orange Valve Tester MKII works with many popular valves, with expansion modules available for other valve types.
New and improved
The MKII version improves on Orange’s original Valve Tester with faster operation, broader compatibility, and a more compact chassis. It’s quicker to use, easier to carry and better suited to modern workflows, whether you’re testing vintage tubes or keeping a touring rig in shape. The updated interface and internal processing make it more powerful than ever.
Complexity made simple
Valve testing has traditionally required charts, calibration, and technical know-how. The Valve Tester MKII changes that. Its onboard software automatically configures the test conditions for each valve type, giving you instant PASS, WORN, or FAIL readings with no guesswork. A numerical grading of each valve allows you to match valves of similar wear level for optimum audio performance. It’s fast, foolproof and safe to use, perfect for musicians, engineers or techs who need reliable information without hassle.
Portable and convenient
With its compact footprint and robust casing, the Valve Tester MKII is built to travel. It’s small enough for a studio bench, flight case, or gig bag, yet rugged enough to handle use on the road. Whether you’re maintaining your own amps or managing a busy repair schedule, the Valve Tester MKII brings serious testing capability to any environment, with no lab bench required.
Designed & made in the UK
The Valve Tester MKII is proudly designed and built in the UK, with every unit assembled and tested for quality and reliability. The engineering reflects Orange’s long heritage of trusted amp design, offering accurate performance in a durable, studio-grade enclosure. It’s a serious tool with a real-world pedigree, built to last and designed with the needs of amp techs, backline crews, and tone-conscious players in mind.
Expansion modules available
The Valve Tester MKII supports optional plug-in boards that allow testing of less common valve types, such as EF86, 300B, and 6SN7. These modular upgrades make the tester flexible and future-ready, ensuring it grows with your needs. Ideal for vintage amp specialists or studios with broad valve inventories, it’s a smart investment in long-term capability.
Tests 20+ Valves
Valves supported: EL34/6CA7, 6L6, 6V6/6V6GTA, KT66, KT77, KT88, KT120, 6550, 5881, EL84/6BQ5, ECC81/12AT7, ECC82/12AU7, ECC83/12AX7, 12BH7. Valves supported with the optional Expansion Modules: EF86, 300B, 6SN7, EZ80, 5AR4/GZ34.
Keep your valve powered devices in tip-top order, with the Orange Valve Tester MKII.
Specifications
Reviews
Valve tester – the ultimate accessory for any valve enthusiast
The Orange Valve Tester MKII makes the perfect buy for any valve enthusiast. Valve amps and other devices with valve sections have a unique sound. What’s more, that unique sound can be further tuned by fitting different brands of valves. If you regularly change, experiment or upgrade your device’s valves, a valve tester is well worth having. It takes the guess work out of condition, making it easy to test the valves’s strength and life expectancy. The Orange Valve Tester MKII works with many popular valves, with expansion modules available for other valve types.
New and improved
The MKII version improves on Orange’s original Valve Tester with faster operation, broader compatibility, and a more compact chassis. It’s quicker to use, easier to carry and better suited to modern workflows, whether you’re testing vintage tubes or keeping a touring rig in shape. The updated interface and internal processing make it more powerful than ever.
Complexity made simple
Valve testing has traditionally required charts, calibration, and technical know-how. The Valve Tester MKII changes that. Its onboard software automatically configures the test conditions for each valve type, giving you instant PASS, WORN, or FAIL readings with no guesswork. A numerical grading of each valve allows you to match valves of similar wear level for optimum audio performance. It’s fast, foolproof and safe to use, perfect for musicians, engineers or techs who need reliable information without hassle.
Portable and convenient
With its compact footprint and robust casing, the Valve Tester MKII is built to travel. It’s small enough for a studio bench, flight case, or gig bag, yet rugged enough to handle use on the road. Whether you’re maintaining your own amps or managing a busy repair schedule, the Valve Tester MKII brings serious testing capability to any environment, with no lab bench required.
Designed & made in the UK
The Valve Tester MKII is proudly designed and built in the UK, with every unit assembled and tested for quality and reliability. The engineering reflects Orange’s long heritage of trusted amp design, offering accurate performance in a durable, studio-grade enclosure. It’s a serious tool with a real-world pedigree, built to last and designed with the needs of amp techs, backline crews, and tone-conscious players in mind.
Expansion modules available
The Valve Tester MKII supports optional plug-in boards that allow testing of less common valve types, such as EF86, 300B, and 6SN7. These modular upgrades make the tester flexible and future-ready, ensuring it grows with your needs. Ideal for vintage amp specialists or studios with broad valve inventories, it’s a smart investment in long-term capability.
Tests 20+ Valves
Valves supported: EL34/6CA7, 6L6, 6V6/6V6GTA, KT66, KT77, KT88, KT120, 6550, 5881, EL84/6BQ5, ECC81/12AT7, ECC82/12AU7, ECC83/12AX7, 12BH7. Valves supported with the optional Expansion Modules: EF86, 300B, 6SN7, EZ80, 5AR4/GZ34.
Keep your valve powered devices in tip-top order, with the Orange Valve Tester MKII.
