Allen Mahurin wrote:
>[In response to my note in which I incorrectly guessed the  forward drop of
>an LED to be 0.6V:]
>
>One thing to note is:
>
>1)  Silicon diodes typically drop 0.6 - 0.7V.
>2)  A standard (red, green, or amber T-1 or
>     T-1 3/4) LED will drop around 1.8 - 2.1V.
>3)  White and blue LEDs are along the lines of
>     4 - 5V.

Oops. In that case, taking 2.0V for the forward drop, the series
case would require a 700-ohm resistor which would dissipate
420mW of heat. In the parallel case, one common resistor for
all 5 LEDs would dissipate 2200mW.

Michael

Thank you for reading my little posting.


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