JANUARY 1 988
FEATURES
4 The Evolution of Electric Railways
12
32
68
86
by Bryan Maher
Pt.3 - The problem of braking
The 1987 CESA Hifi Awards by Leo Simpson
Best amplifier, tuner, CD player & loudspeaker
Marantz's Elegant New CD Player by Leo Simpson
For the audio connoisseur
OTC'S Automatic Seaphone Service by Leo Simpson
Ship-to-shore dialling for all boat owners
Digital Fundamentals, Pt.3 by Louis Frenzel
Teach yourself digitial electronics
WHAT WERE the best hifi
products for 1987? We name
the winners of the 1987 CESA
Grand Prix hifi awards on
page 12.
PROJECTS TO BUILD
14 High-Performance UHF Antenna by Leo Simpson
Uses readily available materials
24 Update the Sound of Your Telephone by John Clarke
Simple circuit fits in your telephone
:t 18.5V power supply by John Clarke
The ideal supply for your workbench
48 1 GHz Digital Frequency Meter Pt.3 by Steve Payor
Construction, calibration a nd troubleshooting
64 Subcarrier Adaptor For FM Tuners by John Clarke
Listen to hidden FM transmissions
71 The Flexo Shortwave Antenna by Ed Noll
Improve your shortwave reception
38 Dual Tracking
IF YOU CAN do basic
metalwork you can build this
high-performance UHF
antenna. It's a four-bay bowtie design to cut down on
interference and ghosting.
Details page 14.
SPECIAL COLUMNS
56 Serviceman's Log by the original TV serviceman
When the chips are down
76 Amateur Radio by Garry Cratt
Amateur television: getting started
82 The Way I See It by Neville Williams
Information has its place, but what about knowledge
DEPARTMENTS
2 Publisher's Letter
3 Mailbag
10 News & Views
22 Circuit Notebook
43 Bookshelf
79 Product Showcase
94 Ask Silicon Chip
96 Market Centre
HERE 'S THE ideal power
suppl y for your workbench.
This is a dual tracking design
giving up to ± 18.5V, and
features voltage metering and
short circuit protection. Turn
to page 57.
JA NUARY 1988
1