Orange Valve Tester / Orange VT1000 Valve Tester

Orange VT1000 Valve Tester Click on image(s) above to view larger

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Orange Amps developed the world's first fully automatic, portable, digital valve tester, the VT1000, to make it easy to test amp valves. Until now testing valves with little or no knowledge of valve theory was difficult, expensive and often unreliable. This new product will test all popular power and pre-amp valves. Its ease of use will appeal to all valve users whether amateur, professional or in the music retail trade.

The unit has one octal and two nine pin valve sockets for different valve types; simply insert the valve to be tested into the correct socket, select the valve type from the list on the unit and press ‘OK' to test. The results are displayed clearly and concisely using LEDs and will test for a wide range of fault conditions, which could easily cause damage to other components. The simplicity of operation belies what is going on ‘inside the box', where a CPU controlled testing system is in operation, allowing full control over all inter-electrode switching and measurement operations.

In approximately two minutes, the VT1000 performs an extensive series of tests including:

* Heater filament test: Short circuit
* Heater filament test: Open circuit
* Heater filament test: Tolerance check
* Heater cathode insulation: Leakage
* Heater cathode insulation: Short Circuit
* Tests for heater current abnormalities
* Amplification factor
* Voltage gain
* Power gain
* Screen grid test
* Mutual conductance test
* Dual test for double triodes
* Emission
* Inter electrode leakage
* Inter electrode short circuit
* Flash-over (arc detection)
* Gas ionisation test

The VT1000 really opens the door to everyone to have an extremely simple, portable, reliable, inexpensive and safe way to test valves. it is small also measuring only 7 inch wide by 5 1/2 inch deep.

The VT1000 incorporates patent-pending technology and currently tests the following valves:

EL34/6CA7; EL34L; 6L6; 6V6/6v6GTA; KT66; KT77; KT88; 6550; 5881; EL84/6BQ5; ECC81/12AT7; ECC82/12AU7; ECC83/12AX7; ECC99; 12BH7. The valve tester will not test for microphoney or provide test results such as anode current or transconductance.


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