Elektor Team (9512)

1-09-1989 | COMMUNICATION RECEIVER FRONT-END FILTERING by A. B. Bradshaw In communication receivers, whether intended for general coverage or for ama- t...

1-09-1989 | 18 BUDGET FM RECEIVER J.Bareford Most receivers for 30 MHz and up contain a fair number of semiconductors. Although super-regenerative recei...

1-09-1989 | AMATEUR COMMUNICATION RECEIVERS: STILL A CHALLENGE? The valve era Over the past forty years or so, communi- cation receiver design has under...

1-09-1989 | here, but the Plessey SL620 and SL621C ics are well proven. This list shows that there is a good home-bred range of building blocks, althoug...

1-09-1989 | 28 CAPACITORS FOR RF APPLICATIONS A brief overview of currently available devices in an electronic component group whose significance for te...

1-09-1989 | 30 a) a) a) a) MN ._ ... . latiamitgarde 0 VI threshol I 10 10 20 kHz 12 140 dB 120 100 60 60 40 20 0 ...ram :Ph- En102 dB .10 -F 1 111M DEC...

1-09-1989 | 36 PC AS TONE GENERATOR J. Schafer DL7PE A GW-BASIC program and a few modifications to the loudspeaker circuit enable any PC, whether an XT,...

1-09-1989 | 38 SIMPLE TRANSMISSION-LINE EXPERIMENTS by Roy C. Whitehead, C.Eng., MIEE This article describes some simple transmission-line experiments t...

1-09-1989 | Most applications for analogue switches fall into two categories: signal routeing and signal conditioning. Different process- ing technologi...

1-09-1989 | 44 THE DIGITAL MODEL TRAIN PART 6 by T. Wigmore The sixth part in the series deals in detail with the Booster Unit. Each of these amplifiers...