| 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...
All items tagged with PDF and Time (297)
| This simple circuit, based on a single opamp in non-inverting mode, is a precision rectifier extension for digital voltmeters. The circu...
| The tester in the diagram can be used to test virtually any kind of semiconductor device, ranging from switching diodes to power transis...
| Many model train enthusiasts find the mechanical reversing system for trains in the HO series from Märklin and other manufacturers primi...
| The all-solid-stäte preamplifier we published some months ago is controlled entirely electronically, including the switching of the input...
| The constructian of a UHF amplifier frightens most people, unless they are expertenced radio/TV enthusiasts. They should, therefore, appr...
| The special characterisfic of this reguJator is that the output voltage may be adjusted down to 0 volt. The regulation is provided by an i...
| This article is one from our 90s collection, the articles are downloadable as a PDF for all our members. Although the information we have on...
| With today's mains and FM duplex intercoms, the traditional circuit presented here creates an almest oId-fashioned image. Nevertheless, i...
| On hard disks with an ST506 compatible interface, there is a 'seek complete' (SC) signal available. This signal is inactive high when the...