contau
Junior Member level 2
help about noise!pls
The above circuit is fm receiver.
when i used pin supply 9V, this circuit had quite nice performence. But when i used AC/DC rectifier or switch supply on same pcb , the received audio has a tone ooeee (noise). I don't know why?
pls help
The above circuit is fm receiver.
when i used pin supply 9V, this circuit had quite nice performence. But when i used AC/DC rectifier or switch supply on same pcb , the received audio has a tone ooeee (noise). I don't know why?
pls help