Hi all,
Im trying ot build a very simple AM modulator with a small op-amp, bascially the carrier is fed into the amp input (as normal audio) then im using a transistor to alter the other input side in attempt to alter the volume, I can't however for the life of me get it to work.... I've also tried a resistor in the carrier line, then pulling the output side of the resistor down to ground with the modulation wave, this to me should work though no matter what I do it just dont seem to work at all :(
has anyone got any simple solutions to this ?
thanks