Elektor Team (9510)

1-07-1985 | I p battery charging indicator 41.141 Sealed 6 V or 12 V lead-acid batteries, under normal charging conditions, are charged at a constant vo...

1-07-1985 | 1111.411104111 It is often desirable for a single door- bell to be operated by two bell- pushes, for instance, one at the front door and the...

1-07-1985 | This novel indicator is ideally suitable for use in a discotheque. It consists of eight equi-distant columns of eight LEDs arranged in a sta...

1-07-1985 | elektor july/august 1985 This temperature regulator can be built without special ICs and may be used with powers up to 3.5 kVA. The circuit...

1-07-1985 | The power supply described here uses a silicon-controlled rectifier (SCR) that, depending on the load current, selects taps on the secondary...

1-07-1985 | The BBC micro, one of the best value- for-money computers on the market, can be used for a variety of appli- cations thanks to the various i...

1-07-1985 | E 0 NAVTEX receiver NAVTEX, the international maritime service that provides navigational and meteorological information via RTTY (radio tel...

1-07-1985 | A meter amplifier is intended for use between a sensor or other measuring device, such as a probe, and the indi- cator. It is characterized...

1-07-1985 | RTTY calibration indicator To calibrate an RTTY (radio teletype) decoder correctly in accordance with the marks and spaces, an oscilloscope...

1-07-1985 | It is often necessary that the current consumption of an essential status indicator is minimal. In the circuit shown, dependent on the level...