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of the Tube Testers.
brains of a computer and the ears of a musician, Robotube
runs a battery of seven exacting tests on each power tube
and analyzes performance so thoroughly it can even predict
the tube´s lifetime. Designed by Mesa Engineering and built
for us by an aerospace firm, Robotube is a one-of-a-kind machine
and easily the most modern and powerful in the industry.
data generated during the seven-part test procedure is combined
in Robotube´s memory and later printed out for each tube.
But there are still some factors of tube performance that
only a human (with a hammer) can properly analyze. After passing
tests for noise and microphonics, then comes the severest
mauling of all the MESA hammer test. Here each tube is tested
for reliability under sever shock and vibration....enough
to duplicate your amp falling off a six foot stage at full
our guarantee: Six months under Heavy Duty use. That´s
twice as long as most. You can find tubes that cost more,
but if they worked any better, we´d be using them!