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Re: light up buttons
Eric,
Sorry about that. LEDs inside switches are legal when the are connected to the LED outputs of the OI as Joe has pointed out. There are some nice switches out there that have internal LEDs that can be used. You need to make sure that the LED does not have an internal resistor since the OI is already wired with the series resistor needed for powering an LED at 10 ma. NKK is one of the manufacturers I have used at work, but there are many others.
As far as modifying a non-lighted switch, I think you will find this is not an easy undertaking. Many switches have hidden metal within the insulated base that is connected to the terminals.
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Good Luck All. Learn something new, everyday!
Al
WB9UVJ
www.wildstang.org
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Storming the Tower since 1996.
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