| This circuit restores the original modulation of the signal received from the remote-control unit, which was demodulated by the receiver uni...
Ton Giesberts (351)
| There are various types of remote-control extenders. Many of them use an electrical or electromagnetic link to carry the signal from one roo...
| This circuit can replace small mains adapters in the vicinity of the computer. This is particularly handy for devices that need a 12-V suppl...
| There are many more types of single opamps available than dual or quad versions. Not only can it sometimes be interesting to replace a dual...
| The fan controller circuit for the Titan 2000 and other AF heavy-duty power amplifiers, published in the May 1999 issue, has an output that...
| The Pinnacle Studio MP10 is an external real-time MPEG1 codec that includes composite video input and output. The output provides only 0.7 V...
| This is a sort of sequel to the article ‘2 × single = 1 × dual’. In this case, two dual opamps are combined to make one new quad opamp. This...
| This power supply has been specially designed for the 20th-order filter described elsewhere in this issue, but it can also be used for a leg...
| This circuit is based on the configuration of a fifth-order Butterworth filter using only one opamp (see p 116 of the 1995 Summer Circuits i...
| This circuit is primarily intended to be used by persons who want to experiment with audio. For example, you can determine whether your own...