On 10/20/09 12:35 , Bill Baka wrote:

Second, I have to mention that those el-cheapo CFL's that Wal-mart is
selling have one hell of an RFI output. I thought my radio had gone down
when I thought to turn off all the CFL's in my house and it got
listen-able. I have an oscilloscope monitoring the audio and the noise
spikes are at 60 Hz and very consistent.

I think that if someone wanted to get into their radio it would be a
small matter to put a line synced blank pulse when needed.



A late thought, here....have you put a bit of capacitance across
the lamp? I had a torchiere in the studio that was creating some
enormous spikes on the line, and was getting back into the audio.
Eventually, I pulled the SCR fader out. But a quick short term
solution was to put a capacitor across the line. Put an orange drop
in a 3 to 2 line adaptor, and plugged it into the power strip.
Quieted things right down. Even elimated spikes that were getting
into my AM receiver.

Cheap solution. Good results.