April 2004 Issue

Select Year and Month to View Other Issues

PROJECTS
BUILDING A DC CURRENT TRANSFORMER
A solution to your DC current measurement problems.
by: Douglas Glenn



HAND-HELD MESSENGER
Use this project for fun or safety.
by: Michael Chan

Related info

OPTOELECTRIC GARDENING
Bring the garden into you workshop with this creative twist on a green thumb.
by: Ronald Eyton



R/C LAP TIMER/COUNTER
Have evidence to back up your legendary R/C performance.
by: Alonzo Trueland

Related info

FEATURES
A TRULY SOLDERLESS BREADBOARD
Part 1: Take the hassle out of circuit board design.
by: Al Williams


THE WLW RECEIVER
Digital radio wasn't the pioneer in broadcast.
by: L. Michael A. Banks



COLUMNS
ELECTRONICS Q&A
A Solar Primer; Sub Woofer Filter, Revisited; Circuits; TV's and AC Outlets; and more.

Related Info

IN THE TRENCHES
For design engineers facing real world problems. This month: Safety and Risk.



JUST FOR STARTERS
Interface Choices; Part 2: Optoisolators and Relays.




NEAR SPACE
An introduction to our new column.



OPEN COMMUNICATION
Digital Broadcast Radio.




PERSONAL ROBOTICS
Hovering Robots




STAMP APPLICATIONS
Speak the Speech.
Related Info



TECHKNOWLEDGEY 2004
Life on Mars; Virtual Ramdisk; Solving Toxic Waste Issues; Classic Audio; and more.