Nuts and Volts April 2004 | |||
| Page# | ||
Personal Robotics | 8 | ||
Hovering Robots. | |||
Just for Starters | 14 | ||
Interfaces Choices - Part 2: Optoisolators and Relays. | |||
Open Communication | 18 | ||
Digital Broadcast Radio. | |||
Electronics Q&A | 26 | ||
A Solar Primer; Subwoofer Filter, Revisted; Circuits; TVs and AC Outlets; and more. | |||
Build a DC Current Transformer | 38 | ||
A solution to your DC current measurement problems. | |||
Douglas Glenn | |||
Hand-Held Messenger | 43 | ||
Use this project for fun or safety. | |||
Michael Chan | |||
Optoelectric Gardening | 47 | ||
Bring the garden into your workshop with this creative twist on a green thumb. | |||
J. ROnald Eyton | |||
R/C Lap Timer/Counter | 50 | ||
Have evidence to back up your legendary R/C performance. | |||
Alonzo Trueland | |||
A Truly Solderless Breadboard | 60 | ||
Part 1: Take the hassle out of circuit board design. | |||
Al Williams | |||
The WLW Receiver | 70 | ||
Digital radio wasn't the pioneer in broadcast excellence. | |||
Michael A. Banks | |||
Near Space | 74 | ||
An introduction to our new column. | |||
Techknowledgey 2004 | 79 | ||
Life on Mars; Virtual Ramdisk; Solving Toxic Waste Issues; Classic Audio; and more. | |||
Stamp Applications | 82 | ||
Speak the Speech. | |||
In the Trenches | 88 | ||
For design engineers facing real world problems. This month: Safety and Risk. |