Re: replacing an illuminated switch
- From: Steve Urbach <dragonsclaw@xxxxxxxxxxxxxxxxx>
- Date: Sat, 31 Dec 2005 16:49:09 GMT
On 31 Dec 2005 06:52:51 -0800, "apa" <tacoma57@xxxxxxxxxxx> wrote:
>Unfortunately the bulb works fine - the rest of the switch fell apart.
>I thought that maybe A) the AC with a dropping resistor would give me a
>60HZ pusing LED or that B) I could tap DC after the rectifier for the
>LED. Is it going to be enough trouble that I would be better off
>bagging the indicator light and putting in a plain old switch?
Please pause for a moment and consider how close these (LED version)
connections bring your clean, filtered DC to your dirty, un-filtered
Mains.
IMHO build a tiny half wave circuit, Diode, Capacitor, Resistor
divider to bring the voltage into the proper range. The LED will
ignore the ripple.
Many "indicator" type LEDS have current regulators built in as
evidenced by a specified "voltage range" eg. 3-24VDC
Steve
.
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