| When an appliance ceases to operate, there may be various causes for this, one of which isthe blowing ofthe mains fuse. The monitor prop...
All items tagged with Time and technology (303)
| Any push-button switch can be used as a bounce-free, change-over switch with the aid of two D-type bistables contained in a 74HCT74 and...
| The scanner is an extension for the 'AlI-solid-state preamplifier' published tn the December 1989 / January 1990 issues of this magazine....
| From time to time one comes across appliances in second-hand goods stores that were designed for operation from a 110 V a.c. (50/60 Hz)...
| Although a 9.5-24 V direct voltage can be brought down to 5 V easily by a standard regulator, the converter described here has the advant...
| The sidac from Motorola is best compared with a triac of which the gate connection is missing. lt switches on whenever the voltage across...
| The Smartec Type SMTl60-30- 18 is a temperature sensor with a digital output, and housed in a TO-18 case. Pins 1 and 3 are are the suppIy...
| Many is the time when a strange, unexpected or distorted waveform appears on your oscilloscope screen. A lot of head scratching and book...
| 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...
| A type TL081 opamp and same passive components are sufficient to construct a small amplifier whose amplification can be varied between +...