This General Electric circuit is from the 80's. The PUTs used in this meter are not common components today.
With an ultra-low consumption, this circuit can be powered by solar cells. The circuit is from a...
This circuit allows you to view two low frequency signals on a single channel oscilloscope. It was...
Adafruit Raspberry Pi Perma Proto PCB Kits Adafruit kits are available from Mouser Electronics...