In Case You Missed it
Aero ‘lectrics
Jim Weir continues the project he started last month as he attempts to bring a little intermittence to a homemade tone generator so that it will go beep, beep instead of one long beeeeeeeeep when alerting you to an out-of-norm condition.
Engine Beat
Vacuum systems may be an imperfect way to power instruments, but careful monitoring and maintenance can forestall common issues. By Steve Ells.
