Hi Jean-Louis, I can add yet another device to the "Ugliest 137 kHz QRM generator Challenge" Just try a "transformerless" transformer for 12 volt halogen bulbs ? Too bad, I can't take a shower any mo
Let me introduce to you a new candidate to the "Ugliest 137 kHz QRM generator Challenge". I'm talking about the Philips SL.E Pro 16W Warm White light bulb. This light bulb (quite expensive) saves en
Low Energy Light Bulbs Hi All, All the electronic ones have some kind of oscillator in them. There is no screening, and there is little space for filter components, so the fact is most of them radiat