Elektor Team (9531)

1-07-1988 | PROGRAMMABLE SWITCHING SEQUENCE The proposed control circuit is shown in the diagram as containing two relays, but this number may be increa...

1-07-1988 | A burst generator is indispensable for testing the dynamic response of loudspeakers, and, in some cases, AF amplifiers. The fact that a numb...

1-07-1988 | EE JULY/AUGUST 1988 The Commodore Amiga is claimed to be a computer with plenty of facilities for extension circuits. The model 500, for ins...

1-07-1988 | An increasing number of electronic components, and in particular inte- grated circuits, is now only available as surface-mount devices (SMDs...

1-07-1988 | 04 This two-key wiper delay circuit is remarkable for its simplicity and ease of use. The wipe is started by pressing the SET switch, which...

1-07-1988 | 0 4 WIRELESS HEADPHONES (TRANSMITTER) A circuit for the transmission, with good quality, of the sound output of a TV re- ceiver over a coupl...

1-07-1988 | To arrive at a suitable headphone re- ceiver that meets the requirements of being light, battery-powered, and offer- ing good-quality reprod...

1-07-1988 | Modern sealed lead-acid batteries are simplicity itself in use. In contrast to NiCd batteries, they may be charged by connecting them to a c...

1-07-1988 | Maxim Integrated Products have re- cently introduced a series of integrated step-up switching regulators designed 3V LAB =1.31(R i/R2+1) [V]...

1-07-1988 | 04 This circuit provides audible and visible warning when a fish is nibbling the bait. Although this event is fairly easy to signal with ele...