VOLUME4 NUMBER12 - .
December 1991
FEATURES
THIS TV TRANSMITTER enables
you to transmit signals from the
UHF output of your VCR to a
second TV set in the house
without messy splitters and
cables. Details page 14.
(Warning: suitable for VCRs with
a UHF modulator only).
6 The Miracle Piano Teaching System by Darren Yates
Your computer teaches you how to play
13 Win A Miracle Piano Teaching System
Just fill in the coupon & send it to SILICON CHIP
76 The Story Of Electrical Energy, Pt.16 by Bryan Maher
Pressurised fluidised bed combustion
PROJECTS TO BUILD
•
·14 TV Transmitter For UHF VCRs by John Clarke
Transmits to a second TV set without messy cables
ALARM
TRIGGl:A~D
26 Build An lnfrared Light Beam Relay by Darren Yates
Use it to monitor a doorway or a path
LIGHT BEAM RELAY
60 Compact Solid-State Laser Pointer by Leo Simpson
Easy to build, runs off three AA-size cells
68 Build A Colour TV Pattern Generator, Pt.2 by John Clarke
Final article has the construction details
SPECIAL COLUMNS
WHEN YOU WALK through the
invisible infrared beam
generated by this project, it
triggers an alarm for a ,1-second
period. Find out how to build it
by turning to page 26.
32 Vintage Radio by John Hill
Power supplies for battery receivers
40 Serviceman's Log by the TV Serviceman
When the ghost comes early
53 Remote Control by Bob Young
Motors for electric flight models
64 Computer Bits by Jennifer Bonnitcha
Windows 3 & the dreaded Unrecoverable Application Error
DEPARTMENTS
4 Publisher's Letter
5 Mailbag
36 Back Issues
56 Circuit Notebook
66 Computer Update
81 Bookshelf
84 Product Showcase
88 Ask Silicon Chip
91 Subscription Page
92 Index To Volume 4
94 Market Centre
96 Advertising Index
~
✓
OK, SO THE DAMAGE wasn't as
bad as this but the Serviceman
did come close to a major "oops"
this month. He also delved into
the spiritual world & found that
electronic equipment definitely
doesn't go better with Coca
Cola®.
DECEMBER1991
1