Some information on what current and resistors to use. The LEDs are all in parallel and need about 3 Volts, current limited with a resistor. https://www.facebook.com/reel/909951727389682?mibextid=9drbnH&s=yWDuG2&fs=e
2024-03-08 Some Rube Goldberg Inventions That Could Make Some Cool Projects
Mostly wood. Short video. https://www.facebook.com/reel/1099537448068091?mibextid=9drbnH&s=yWDuG2&fs=e
2024-03-08 FWBR Ripple Calculator Online
This may be helpful when choosing the amount of capacitance for a certain unregulated AC power supply – the kind that uses an old fashioned transformer. It calculates one variable given the others. https://www.chipbuilder.com/full-wave-power-supply-ripple-calculator.html
2024-04-06 The Flexible LED Filament
This YouTube short demos a flexible LED filament and shows how to configure it for 5VDC.
2024-03-01 Innovative Dome Shaped Homes In S. Dakota
Dome shaped homes use cellular concrete 20% with 80% air, which makes it a good insulator. In the Pine Ridge Reservation in S. Dakota. They founded “In Our Hands” non-profit. Short video. https://www.facebook.com/reel/1889790898142946?mibextid=9drbnH&s=yWDuG2&fs=e
2024-02-22 Building A LiFePO4 Battery
A YouTube short of a 12V 315Ah LiFePO4 battery being assembled. I wish I could find out what the background music is.
2024-02-21 Website for Electronics – Very Comprehensive
This very comprehensive electronics website has many projects with useful devices. This example project is a transistor curve tracer. Go to the index and look at the many, many links. It seems to be at the ETH in Switzerland but some of the words are in ?Thai? https://www.changpuak.ch/electronics/Curve_Tracer_advanced.php#
2024-02-17 BJT, FET Curve Tracer
This very comprehensive website has a transistor and FET Curve tracer. Also a simpler curve tracer for all components. Click on box to download the schematic, etc. https://www.changpuak.ch/electronics/Curve_Tracer_advanced.php#