More about circuit (738)

1-02-1999 | The service provided by the circuit described in this article is known as a shuttle service (as for instance through the Channel tunne...

1-01-1999 | This twopart article describes an AM/FM/SSB receiver for the frequency range 0.15 – 32 MHz, which is generally (but incorrectly) re...

1-01-1999 | An RF decibel (or power) meter is an indispensable instrument in any radio workshop. Unfortunately, accurate, wideband models are fairly e...

1-01-1999 | The voltage step-up converter described in this article is a transformerless design based on just one integrated circuit and a handful of...

1-01-1999 | In many instances, suspect television receivers and monitors can be tested with a simple test pattern generator as described in this a...

1-12-1998 | The XC9536 is a high-performance CPLD providing advanced in-system programming and test capabilities for general-purpose logic integration...

1-12-1998 | This circuit was originally designed to control the brightness of an electric torchlight, but may find many other applications because o...

1-12-1998 | To make a certain musical instrument in a group stand out, a so-called presence filter is normally used. Unfortunately, the types usuall...

1-12-1998 | There are systems in which it is imperative that the supply voltage of, say, a motor, always has the correct polarity.

1-12-1998 | The NE612 is an active mixer/ oscillator that is used in numerous r.f. circuits. Three unusual applications of this versatile building b...