Abstract :
This paper deals only with the Grade I type of vibrator which is expected to give a life of at least the 1,000 hours necessary to meet Service requirements. It deals very fully with the different types of vibrators, and gives reasons for specializing in the main on synchronous split-reed, separately-driven types. An outline is given of an extensive investigation into contact phenomena, the design of the vibrator itself and the circuits into which the vibrator is feeding, together with a short section on power pack performance. An extensive range of vibrators is described covering outputs from a few milliwatts to over 200 watts, and extremely high conversion efficiencies have been obtained.
