All items tagged with PDF and light (12)

1-03-1999 | In this article we discuss and respons the questions and advices of our readers.

1-07-1997 | The Type TSL230 IC is a programmable light-to-frequency converter it is a single-chip combination of a silicon photodiode and a current-t...

1-12-1996 | The presenr circuit, consisting of only a handful of cornponents, enables a rnains-operated lamp to flash at Intervals of about one seco...

1-07-1996 | In many countries, there is a legal requirement for can and motorcycles to have lights on whenever the vehicle is moving. In even more c...

1-07-1996 | The low-cost circuit charges two nickel-cadmium cells from the mains to provide a stand-by power supply for a two-lamp emergency light which...

1-12-1993 | The circuit presented here ensures that bicycle lights remain on for a little while after the bicycle (and thus the dynamo) has corne to...

1-07-1993 | Halogen lamps are rightly popular because they give a good light and have an excellent efficiency. Unfortunately, they tend to be costly....

1-01-1993 | Virtually all modern cars have a built-in alarm to warn if you have left the lights on when you are getting out of the car. There are, how...

1-03-1992 | Many people nowadays do a lot of cooking in their wok, usually on agos or electric stove, but the idea outlined below, which I have been u...

1-07-1991 | This electronic switch is designed to be connected direct to the mains, which obviates a low-voltage supply and so keeps the cost and sp...