Electronic ballast having pulsating output voltage
Electronic ballast with ground-fault protection
Electronic ballast with improved lamp current crest factor
Electronic control circuitry for terminating flash output
Electronic dimming ballast for compact fluorescent lamps
Electronic energy converter having two resonant circuits
Electronic flash
Electronic flash
Electronic flash
Electronic flash apparatus
Electronic flash apparatus
Electronic flash apparatus
Electronic flash apparatus
Electronic flash apparatus
Electronic flash apparatus
Electronic flash apparatus for conserving flash battery life
Electronic flash apparatus using gate controlled switching devic
Electronic flash apparatus with a protective circuit which limit
Electronic flash apparatus with constant duration repeated flash
Electronic flash apparatus with function to bounce flash