Elektor Team (9518)

1-07-1977 | Using two CMOS NAND gates (or inverters) and two transistors it is possible to construct a simple current-controlled oscillator (CCO...

1-07-1977 | This circuit is designed to give an audible and visible warning to the absent-minded motorist who forgets to switch off...

1-07-1977 | This circuit is designed to give an audible and visible warning to the absent-minded motorist who forgets to switch off...

1-07-1977 | his circuit can be used as a tuning indicator, instead of the more common pointer instru- ment. It gives a three-LED indication...

1-07-1977 | his circuit can be used as a tuning indicator, instead of the more common pointer instru- ment. It gives a three-LED indication...

1-07-1977 | A disadvantage of the VU meters frequently used in hi-fi equipment is their inability to respond to short transients, which can...

1-07-1977 | A disadvantage of the VU meters frequently used in hi-fi equipment is their inability to respond to short transients, which can...

1-07-1977 | Most amateur constructors will have one or two burnt out power transistors lying about in their junk box. If at least one of...

1-07-1977 | Most amateur constructors will have one or two burnt out power transistors lying about in their junk box. If at least one of...

1-07-1977 | Many circuits using, for example, both op- amps and logic circuits, require more than one · supply voltage. The circuit des...