yaserz

Hi again buddies, Thanks very much for your quick response. In fact ,you can't tell that the genertated frequency from L1 (radiator coil) will be the same as the generated frequency from IC2C & IC2D ,because they are converted into pulses at C5 & C6 then they go to the coil knowing that this coil has specific paramters that will change the bahviour of the generated electromagnetic field ,thus we may obtain difference frequency. However,i bought all the components except the radiator coil because i don't know it's value ,hence i have to make it myself. once i construct the circuit ,i will use the oscillscope and frequency analyzer to test this circuit. To be frank ,i'm doing this circuit for my graduation project at my univeristy and i can't stop now ,i'm involved :( any help will be highly appreciated guys ,please feel with me :( best regards "Somethings are true whether you believe in them or not " Yassir Zayyad Amman- Jordan PO BOX 230078 area code 11123

Hello everybody, briefly ,i decided to work on the sleeping-aid device that's found on on the following link : http://www.electronics-lab.com/projects/science/010 but what i have to know is that what is the frequency that's genertated by the radiated coil L1 ?in order to satsify people that this sleeping aid really helps for sleeping ,i should know the genetrated frequency and check if it's a well known freqency and can really help or affect human brain in sleeping ? i will be highly happily and grateful if anyone could help me with this. best regards.