Troubleshooting two big old Tektronix 7854 in my garage. The first analog oscilloscope with a computer. An oscilloscope lets you "see...

John Deere Easy Change oil system Today I tried to change the "Easy Change" oil filter on my cute little John Deere E120 lawn trac...

INDEX to the series In my never ending quest to reduce household energy use, I have added a Hti-Xintai HT-18 Thermal Imaging Camera to let...