|[AMRadio] LED Magnifying Lamp by Duratool|
ranchorobbo at gmail.com
Tue Sep 22 13:57:05 EDT 2015
And what would it have cost the manufacturer to put in a cap at the
plant? Bought in quantity maybe 10 cents per lamp? But no, who
cares about a bunch of geezer hams and swls. No one listens to the
radio anymore anyway.
> "But unfortunately, when the light is on, it gives off a fair bit of
> RF hash that can be heard in a radio. I added a 0.022uF 630V cap at
> the output terminals to the LEDs and that quieted it down a bit. I
> wish that the people that spec out these designs would pay more
> attention to spurious RF that some power supplies cause."
> I took it apart when it got here. The power supply is in the base. I went
> with a bigger value cap. I went with a 0.068uF @ 630V one. Now I got rid of
> all the hash!
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