Hello Shajahan, I came across this article on a Philips Prestige radio. I hope this is the same model which you are referring to (I recollect Philips Prestige and Pride radios from my childhood days). I don't think Mr. Parasuraman shares schematics as I have written to him in the past for a schematic, without any success. However all is not lost. We have a Philips tube radio guru, Mr. Pandu Rajan on this forum, how may be of help. Please get in touch with him. He is a walking encyclopedia on anything related to Philips tube radios.