I m a newbie in electronics... My modem power supply had problem I opened it and found it that transformer not working properly. It was 9vdc 1amp transformer... I go to electronic shop and purchase new one but instead of 9vdc 1amp shop guy give me 12vdc 1amp.. and after fixing it with bridge I got 12v dc ... but i required 9vdc... My question is CAN I DROP OUTPUT VOLTAGE WITH RESISTOR IF YES HOW MUCH OHM RESISTER I HAVE TO FIX TO GET 9V DC OUTPUT.
Thanks
Thanks