Dave investigates two very serious issues with jitter on the Rigol DS1000Z series oscilloscopes, including the DS1104Z and new DS1054Z Some sort of modulated sampling/trigger jitter problem at 5 microsecond intervals (the “5us jitter problem”). And severe jitter with the AC coupled trigger mode, a problem which is also present …

So I get an Ebay email alert for something on my watch list. An item that rarely comes up, I was excited!, but then comes SCAM SIGN #1: The seller has zero feedback. Then comes SCAM SIGN #2: The seller is in Mexico. Not to offend any Mexians of course, …

Part teardown, part repair, Dave looks at an Australian designed and manufactured Ness D16X alarm panel that has failed. What’s that smell? Can it be fixed? How do you repair solder mask on a PCB?, or add solder mask to your own home etched PCB’s? And another look at PCB …

Dave yet again debunks Solar (Freaking) Roadways. This time the prototype SolaRoad solar cycleway path installed in Amsterdam in Netherlands. Dave shows how to go about doing ballpark engineering feasibility calculations for such a project, calculates the expected payback period, and SPOILER, shows why Solar Roadways will never be a …

Mailbag Monday Flux Capacitor T-Shirts HERE How NOT to blow up your oscilloscope (Isolation & Grounding) How a Microwave Magnatron Works PCB Holder Magazine Memories Memory Stacks Isolated USB-RS232 Interface LGB Model Train Controller & Decoder Caterpillar Dump Truck Controller 2114 SRAM Memory Forum HERE Podcast: Download