Electronic ballast circuit for fluorescent tube operation, includes choke, additional condensers and diodes in mains power supply circuitry
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Circuit for saving energy with fluorescent lamps has plug-on sleeve with contact points in housing; fitting sleeve on lamp pin connects inductance or capacitance in series with supply voltage
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Daylight-dependent lighting circuit; has photodiode with switch component arranged in casing, as well as clock component and switch key function, to switch light on or off
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Circuit for operating low pressure discharge lamp for converting from choke-starter mode to electronic operating system has high frequency line connected to lamp pin via contact in PCB hole
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HF full bridge generator for fluorescent lamp - has two ring core transmitters with windings where drive of each transistor base is associated with ring core
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Ballast circuitry for low pressure discharge lamps - uses rectifier and push=pull electronic circuit to ignite lamps on each half-cycle
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Operating circuitry for low pressure gas discharge lamp - includes PTC resistance in parallel with choke coil for reduced power warm starting
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Energy saving gas discharge lamp circuit - uses cold conductor to switch in triac for phase chopping control
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High-frequency ballast apparatus for low-pressure discharge lamps of any desired powers
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Combined dispensing device for playing means by coin operation and the insertion of a deposit
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CIRCUIT ARRANGEMENT FOR OPERATING FLUORESCENT OR ULTRAVIOLET LOW-VOLTAGE DISCHARGE LAMPS
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Circuit arrangement for starting and operating low-voltage discharge lamps
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Circuit arrangement for starting fluorescent or ultra-violet low-voltage discharge lamps
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TRAINING WALL WITH ELECTRONIC EVALUATION OF THE SCOPE AND IMPACT STRENGTH
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Watercraft with a varying adjustable draught, bathing bases which can be swung out in the sea, and grounding stanchions
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Contact-free switch for ball games
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Training wall for ball games
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Programmable on-off switching delay for electrical circuits
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Score and result indicator for billiards
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Transformer having secondary-voltage addition in accordance with a system which is defined in magnitude and sequence
