Method and apparatus for current regulation in a gas discharge l

Method and apparatus for driving a gas discharge lamp

Method and apparatus for increasing the cathode efficiency in a

Method and apparatus for lighting a discharge lamp

Method and apparatus for quickly heating a vacuum tube cathode

Method and apparatus for supplying power for a vacuum...

Method and arrangement for preventing cathode damage when switch

Method and arrangement for the operation of a gas discharge lamp

Method and circuit to operate a low-pressure discharge lamp, par

Method and circuit to start and operate high pressure discharge

Method and circuitry for igniting fluorescent lamps at a predete

Method and device for detecting the rectification effect that oc

Method for operation of a cathode using the tunnelling effect an

Method for powering a control circuit for a gas discharge...

Method for pre-heating a gas-discharge lamp

Method for starting a discharge lamp

Method for starting and operating a preheat type fluorescent lam

Method of dimensioning and operating a low pressure discharge la

Method of flicker-free lighting hot-cathode low-pressure rare ga

Microwave generator apparatus comprising controller for automati