I'm waiting to hear back from my railroad contacts on this issue. They
have always used DC for signals in the past so the noisey switching
supply is not needed. Can't imagine anything that would cause this to
change with the new lamps since it would incompatible with all current
signalling circuits.
73, de ed -K0iL
-----Original Message-----
From: Rob Atkinson, K5UJ
I'm not yet calling this a problem, but in keeping with the earlier
thread
on traffic signals, I noticed on the way home last night, when stopped
at a
railroad crossing, that the big red flashing lights were big red LED
lights.
Rob Atkinson
K5UJ
k5uj@hotmail.com
|