Orange Amps VALVE-TESTER-MKII New Automatic Tube Tester

Automatically tests Hi-Fi/guitar amplifier valves and displays their condition, performing a wide range of tests, quickly and accurately.

The latest model of the Orange Valve Tester has greatly improved algorithms with an updated database containing the test results of literally hundreds of new, used, and faulty valves giving the MKII a much greater intelligence compared to the original Orange VT1000. All the voltages required by the tester are internally derived, stabilized and controlled allowing rapid static and transient testing without unnecessary heat generation. In addition, the new unit features higher current capacity with enhanced ‘grid leakage detection testing’, a new ‘thermal runaway’ test, and a new ‘digital microphony function’ to test pre-amp valves. Its new, rugged mechanical design and form have also improved valve sockets.

• Microphony test (ECC81, ECC82, ECC83 & 12BH7 only)
• Capability to test directly heated valves with expansion modules
• All valves tested under higher current.
• Improved test sockets
• More rugged design
• Capability to test other valve types such as rectifiers with expansion modules
• Valve failure mode fault

Designed & Made in the UK

The Orange Valve Tester MKII, proudly crafted and engineered in the UK, revolutionizes valve-testing technology. With seamless precision and simplicity, it effortlessly conducts a comprehensive array of tests, setting a new global standard for both Hi-Fi enthusiasts and service professionals.

Style

• Test equipment

Expansion modules currently available

• 3000B
• EF86
• GZ34
• EZ80
• 6SN7

Testing valves

• EL34
• 6CA7
• 6L6
• 6V6
• 6V6GTA
• KT66
• KT77
• KT88
• KT120
• 6550
• 5881
• EL84
• 6BQ5
• ECC81
• 12AT7
• ECC82
• 12AU7
• ECC83
• 12AX7
• 12BH7

Weight

• 1.56 kg / 3.44 lb

Dimensions (W x D x H)

• 17.6 x 16.2 x 6.8 cm
• 6.9 x 6.4 x 2.7 in

Included in box

• 1 x Valve Tester MKII
• 1 x power supply
• 1 x mains lead
• 1 x Manual
• 1 x pencil

Test sequences

1. Heater filament test: Short circuit
2. Heater filament test: Open Circuit
3. Heater filament test: Tolerance check
4. Heater cathode insulation: Leakage
5. Heater cathode insulation: Short Circuit
6. Test for heater current abnormalities
7. Amplification factor
8. Voltage gain
9. Power gain
10. Screen grid test
11. Mutual conductance test
12. Dual test for double triodes
13. Emission
14. Inter Electrode leakage
15. Inter electrode short circuit
16. Flash-over (arc detection, high voltage breakdown)
17. Gas ionization test
18. New thermal runaway test
19. New enhanced grid leakage detection test

Additional features

1. New microphony function test (please note: The microphony function test is for ECC81, ECC82, ECC83 & 12BH7 valves only)
2. Capability to test directly heated valves with expansion modules
3. All valves tested under higher current
4. Improved test sockets
5. More rugged design
6. Capability to test other valve types such as rectifiers with expansion modules
7. Valve failure mode fault indication

Please note: when removing the valve from the tester, please hold the bottom of the valve as the tester could be hot.