Posted on June 20th, 2013 1 comment
Inside the new Agilent TrueVolt 34461A 6.5digit bench multimeter. A replacement for the venerable 34401A.
Posted on June 16th, 2013 11 comments
Installing and initial testing of Dave’s 3kW home solar power system. With Sunnyboy SMA inverter, 250W LG Mono-X solar panels, and net metering.
Posted on June 15th, 2013 2 comments
How a diode voltage inverter circuit works.
Turns any PWM or clock signal into a low power negative voltage rail.
This can be clocked from a microcontroller, existing DC-DC converter, 555 timer etc.
Voltage Doubler Video
Posted on June 13th, 2013 9 comments
What’s inside a 1980 vintage Yugoslavian digital multimeter, the Digimer 10 from Iskra
Posted on June 12th, 2013 13 comments
Blinker hybrid schematic