| Designing decadic voltage dividers is not as simple as it may seem. One decade is not too difficult, but when a number of decade steps are...
More about Switch (454)
| The design described here enables the selection of up to eight inputs of a prearnplifier without any switch clicks or other noises. It ma...
| The windscreen wiper interval circuit presented here is very compact and is noteworthy for its use of the thyristors instead of a relay. I...
| The electronic antenna selector is intended to switch between two FM antennas by means of a legte signal.
| A switch that keeps on giving pulses as lang as it pressed is often required. The circuit here uses the well-known Type 555 for this purp...
| This circuit automatically switches on the headlights of a ear after the engine is started. In countries like Sweden and Canada, ear driver...
| A notorious problem with four-stroke model engines is their tendency to stutter or even stall at low speeds with all the obvious risks of...
| This low-power transmitter for the VHF FM band may be used as a wireless babysitter or a short-range repeater by virtue of its voice operate...
| Any switch or key in a digital circuit may cause problems because mechanical contacts bounce up and down a few times before they close. N...
| With circuit values as shown, this charger allows up to seven series-connected NiCd batteries to be charged. This number may be increased...