Elektor Team (9494)

1-07-1984 | for keeping nasty rodents at bay Most of us will agree that rats and mice are generally not the most welcome visitors to our homes. At the s...

1-07-1984 | motion study by flash-light WARNING! The circuit of the stroboscope is connected directly to the mains and experiments on the opened unit ar...

1-07-1984 | space saving and cost effective Warning! This circuit needs to be constructed and wired with the greatest care as the full mains voltage is...

1-07-1984 | with variable gain The design for the circuit here was created when problems arose with the matching of some output stages with a preamp. In...

1-07-1984 | depends on channel separation Weak VHF/FM signals, particularly stereo broadcasts, are normally received against a background of noise. When...

1-07-1984 | july/august 1984 A for short-wave receivers Many short-wave listeners often wish their receiver could be extended above 30 MHz. The converte...

1-07-1984 | for the VDU card with the CMOS Junior The VDU card published in Elektor number 101, September 1983, sometimes lets noise appear on the scree...

1-07-1984 | a fresh look at the 723 voltage regulator In its standard application, the 723 voltage regulator provides an output of 2 . . . 37 volts but...

1-07-1984 | / simple, but effective It is sometimes necessary, or at least desirable, to be able to detect relatively large a.c. currents. One way of do...

1-07-1984 | grabs your attention One of the great things about com- puters is that no matter what you tell them to do they never complain and always sta...