Free or almost Free Safe Lighting
No thats a frugal idea. I like it. This could be less then free if you use harbor freight coupons. all you would have to buy is the switch and leds at the dollar store.
-
-
Improvised DIY diode ( over complicated )
Building your own diodes During World War I, soldiers in the field made their own radios to listen to programs for entertainment and news. They had access to wire from broken down vehicles, and telephone receivers, but they did not have modern solid state diodes in little glass tubes. However, it is surprising to find…
