ungastm

thanks for that information.. but why it is still hard to find it on the fm radio? i even tried moving the dial of the reciever while continously tapping the mic and while turning the trimmer... i also tried every positions of the trimmers...

does this means that it works in the three channel at the same time? at 88,100, and 108?

which of the two trimmer will i tune?or both will be turned? i will set the frequency of the fm radio in the middle?

audio guru how am i able to find the right frequency? how to test if my device is working?

it's not working sir, i used tda7052a and bc547b and for R7 i used the 22k carbon resistor instead of the trimmer.

what will be the effect if i use a linear potentiometer?

oh.. im very sorry sir.. i'll find/steal a log pot for that.. is it ok if i find a log pot from the range of 20k-30k?

i bought that linear pot because its hard to find that log potentiometer. if there is only a little difference maybe i'll should go to this linear pot. thanks sir!