Cheers,
The discussion regarding LEDs has centred around utility. For
'shopping' after details and availablity, try "eLed.com" for fun, and for a
costing trip for parts for a dimming or brightening circuit, try
www.cpcares.com and browse for bits there.
The dimming circuit, courtesy Jim Weir allows one to aim narrow
beam red superbrightLEDs at the instrument panel (one per instrument, and
dim 'em as required. The Brightener circuit (same source) permits the
hysteresis of the human eyeball to be used to turn on the LED to brilliance
but only for a short sharp time, to stay within the current restraints (adds
about another 50% perceived brightness) - could be excellent way to increase
homebuilt position lights - or even a rudder 'vanity' light a la
airlines........
Ferg A064
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