| Many new devices require a headphone connection, but due to the high level of integration and miniaturisation there is usually little room l...
Ton Giesberts (354)
| We have designed a fairly compact adapter that lets you connect an MP3 player (or any other portable device) to the SCART socket of a TV. It...
| In most WCs with an extractor the fan is connected to the lighting circuit and is switched on and off either in sympathy with the light or w...
| This two-part circuit was designed as an addition to the 'Compact 200 W Output Stage' in this issue. But it is also suitable for u...
| These days, transmit- and receive modules that operate on the well-known 433-MHz licence-free frequency are reasonably cheap and freely avai...
| This circuit works together with a transmitter described elsewhere in this issue to form a remote-control extender. Due to its limited bandw...
| The LR12 made by Supertex Inc. is a good choice for applications where a supply voltage of more than 35 to 40 V needs to be stabilised. This...
| There are various types of active filters, and the Sallen–Key version is probably the most commonly used type. A voltage follower is usually...
| The MAX7378 contains two oscillators and a power-on reset circuit for microprocessors. The Speed input selects either 32.768 kHz (LF) or a h...
| Steep filters can be realised in many different ways, for example by connecting active 2nd to 5th-order sections in series and calculating t...