What do you do if you need to monitor a number of audio signals, but you don't have room for an audio switching panel? Jim Weir finds the answer in a summing amplifier.
Vibration is not good for engines, airframes or instruments. Jim Weir explains how to fashion vibration analysis equipment for less than retail cost.
Jim Weirs lifetimes worth of tinkering has produced a definitive list of electronics parts suppliers, and hes willing to share.
Ishmael Fuentes shows you how to protect and cool the hoses in your engine compartment by making a firesleeve.
Heat and avionics don't get along all that well. Rather than installing a fan that runs all the time, Jim Weir suggests building and using a fan that runs only when you need it.
Jim Weir borrows a trick from the world of computers to provide a cool breeze to your radio stack.
A little music for the airways can make your flight a pleasure. Jim Weir shows you how to power any music device from your panel.
Having problems drilling a precise hole in a tube? Ishmael Fuentes has the perfect-and inexpensive-solution with this nifty, easy-to-make V-block drill jig.
If you've got sticker shock after shopping for a main electrical system junction box, Jim Weir will ease your pain with a junction box you can build (and a cool color-coding system, to boot).
For some builders, the prospect of flaring hard-line tubing is daunting. Ishmael Fuentes demystifies the process, and shows you how to get good results every time.