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Interesting Manuals
Valve characteristic meter
'The problem of designing a Valve Testing Instrument capable of giving a true and comprehensive picture of the state of any valve, has always been one of considerable magnitude, increasing in complexity as new valve types are brought into general use. For a quick general purpose test necessitating a minimum of time and technical effort a mutual conductance figure will give an adequate idea of a valve’s usefulness, and the original “ AVO ” Valve Tester was designed to test the ...