Elektor Team (9518)

1-07-1984 | with just six transistors To the best of our knowlegde this is the simplest FM radio that can be made. Not only that but it also works quite...

1-07-1984 | can also be used in the 2 m amateur band Many enthusiasts would be in- terested in listening to what goes on in the v.h.f. air band of 108 ....

1-07-1984 | composite and compact It seems that we cannot publish too many mains power supply projects: the number of readers" requests for these exceed...

1-07-1984 | an inexpensive unidimensional design Just as it is very easy to implement an "all or nothing" control (four pos- itions identified by two bi...

1-07-1984 | july/august 1984 enables true "on line" testing To be able to use a computer prop- erly, you need a number of relevant peripheral units. The...

1-07-1984 | chirps back at you Birds of all sorts are lovingly owned by many people, but most of them have, unfortunately (?), not yet learnt to communi...

1-07-1984 | with one push-button The present circuit is particularly useful where two families share one house, and where therefore two doorbells are a...

1-07-1984 | and —15 volts at 2 amps There is often a need for a high- power no-nonsense supply for a cir- cuit with a large number of op-amps and othe...

1-07-1984 | for control computers The use of a microprocessor system as control computer often makes it necessary for a large number of analog signals t...

1-07-1984 | extends their usefulness The well-known CMOS IC type 4017 is a decade counter which offers an excellent means of sequentially scan- ning sma...