In another forum someone tried to tell me that LED's do not cause RFI.
If you want to tune a radio for best performance, A very good way to do it is to use a GATED NOISE SOURCE, Using one of these devices with generate something called White Noise, (Equal amplitude at all frequencies) and turn it on and off like 700 times a second (700 hz tone) enable you to tune a receiver for best signal to noise ratio by ear. Very handy.
I built one.. the noise source was a Forward Biased Diode.. I used an LED. Normally if you are designing a LED light system you use a couple of components to prevent RFI, in this case I desired RFI. and got it too.
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