On Fri, Aug 21, 2015 at 8:36 AM, dwight <[email protected]> wrote: > I was going to add something but it has already been > said several times. > I will add that if using a LED on an AC like signal of high voltage, > one should use a diode. > I recommend using a shunt diode rather than a series diode when > high voltages are being dropped by the resistor. It reduces the need > for a high voltage diode but makes the resistor hotter. > Some red LEDs glow orange when not protected from 12VAC. > You can ask how I know. > Dwight > >
You can also turn on all of the pretty blues lights in a UV-erasable PROM by putting it in the PROM burner the wrong way around. -- Charles
