Elektor Team (9511)

1-07-1988 | Described is a digital panel meter- DPM-which is built around a special meter-IC, Type ADD3701, and may be used for the accurate measuring o...

1-07-1988 | Repairs to the e.h.t. section of a monitor or a television receiver always carry a certain amount of risk. It makes sense, therefore, partic...

1-07-1988 | 00 While experimenting with electronic circuits, it will often be necessary to rap- idly test bipolar transistors and FETs before they are f...

1-07-1988 | 0I It is sometimes desired to use a BC547 at rather higher voltages than permitted according to the data book. Yet, it can be done by connec...

1-07-1988 | 0I Circuits for the generation of control pulses for servo apparatus remain popular, which seems a good enough reason to present another one...

1-07-1988 | 0I The proposed power supply switches itself off when no current is drawn by the load. How this is done is shown in the circuit diagram, Fig...

1-07-1988 | EE JULY/AUGUST 1988 There is a growing tendency to use liquid-crystal displays (LCD) as the screen of computer monitors. Such dis- plays may...

1-07-1988 | 0 It"s dark and it"s raining cats and dogs. You rush to your car, open the door and quickly close it behind you again. Then you sit there fu...

1-07-1988 | 0I The polarization of satellite TV signals is defined as horizontal (H) or vertical (V) with respect to the equator below the subsatellite...

1-07-1988 | EE JULY/AUGUST 1988 A number of appliances, such as an EPROM programmer, require a supply voltage that can be switched to a variety of level...