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1-06-1999 | This article is explaining our answers to the readers questions.

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...

1-07-1994 | The mains-synchronised oscillator has certain advantages over a simple zero crossing detector. For instance, the brief failing of input p...