Hello, I found the solution. This is the schematic:
http://electroschematics.com/354/vox-circuit-schematic/
It works perfectly.....Thanks for your help!!!
Thank you for your answer. I did the following schematic. I'm happy that it turns the relay on , but when the tune finishes it doesn't turn it off. To turn it off, i have to short the relay coil....I need it to be turned off after the song ends...
Hello everybody,
I need to build a switch that can turn off a power outlet for a few seconds when i press a button. I thought of modifying a wireless door bell. I replaced the speaker with the following circuit but the result is that the relay coil and contact is literally playing the tune...