More about circuit (744)

1-06-1992 | In this instalment we deal with the construction of the synthesizer board, and the operation of the combined keyboard/display/controls uni...

1-06-1992 | A small circuit is described that inverts a positive voltage into a negative one or doubles its level. It does not use inductors and is ba...

1-06-1992 | Analogue circuit design is traditionally difficult because all designs have to be tested to confirm that they work as desired. Even more...

1-05-1992 | The greater part of this month's instalment is devoted to the operation of the microprocessorcontrolled synthesizer used to tune the RF...

1-04-1992 | The name of the test instrument described here is based on the frequency spectrum it produces. The circuit will be particularly valued by...

1-04-1992 | Whether you are advertising your merchandise, welcoming your mother-in-Iaw, or celebrating a day of success, SUPER SIGN will add light t...

1-02-1992 | The Z80 card described last month will be perfectly suitable tor many applications. There are cases, however, in which RAM is a must, a...

1-02-1992 | It is weil know that coupling capacitors in hi-f audio circuits can adversely affect the tone quality of the circuits. Unfortunately, there...

1-02-1992 | Recent developments in integrated circuit technology have made it possible to build all-digital frequency synthesizers. Following a short...

1-01-1992 | The Signetics (philips Components) NE602/SA602 is a monolithic integrated circuit containing a double balanced mixer (DBM), an oscillato...