Elektor Team (9510)

1-07-1983 | 71 W. Schaaij RS 232 P86 o„ VIA 1 T1,T2= BC547B RS 232 printer interface and a few minor changes to the Printer Monitor software. As can b...

1-07-1983 | elektorjuly/august 1983 72 simple stabiliser This is a very simple but nonethe- less reliable stabiliser circuit which can be used in place...

1-07-1983 | 73 electronic switch for audio signals The complexity of the problems as- sociated with switching audio signals is proportional to the sophi...

1-07-1983 | 74 vector control for the Junior ENA d 2 E RAM 0 LE ROM 0 Nigel Humphreys Computer 1LS30 iet - ivo = wc - ,4LS00 N6 ... N8 = IC3 = 74LS86 Th...

1-07-1983 | 75 four quadrant multiplier This four quadrant multiplier can be built using just one op-amp and the amplification factor can be preset with...

1-07-1983 | 76 microprocessor aid Faultfinding in microprocessor sys- tems is an arduous and time- consuming task. It would be a great help if it were p...

1-07-1983 | 77 dexterity game In electronics, as in everything else, we must be able to laugh, to have fun now and again, and games circuits are always...

1-07-1983 | elektorjuly/august 1983 78 40 watt main amplifier Our December 1982 issue featured the 2 x 140 watt Crescendo; here we describe the circuit...

1-07-1983 | 79 zero-crossing detector There is nothing very special about a zero-crossing detector. However, this particular circuit has an unusual feat...

1-07-1983 | [:10] negative printhead supply Thermal and metal foil printers are equipped with a printhead which usually requires a rather high voltage,...