cheap and easy tone generator

[1iwilly]

ok so i took the mic element from this stock mic and wire a 3.5mm to the plus and minus where the element, was so i can use it with a cellphone when tuning a radio the question is do i need to add a cap or resistor parallel to the plus and minus for a cleaner audio output

 

[Shadetree Mechanic]

You will probably need an L pad or a resistor in series to attenuate the signal. The microphone input on the CB is in the range of millivolts, whereas the headphone output of the phone is several volts.

 

[1iwilly]

You will probably need an L pad or a resistor in series to attenuate the signal. The microphone input on the CB is in the range of millivolts, whereas the headphone output of the phone is several volts.

i was thinking of a resister but got stuck on a value

 

[Xracerx13]

You could just key up the mic over the cellphone speaker.

 

[Shadetree Mechanic]

i was thinking of a resister but got stuck on a value

You could mount a potentiometer on the mic body. Then slowly turn it up until you get what you want.

 

[1iwilly]

You could just key up the mic over the cellphone speaker.

after 50 OCD kick-in simple fast and effective is the new choice LOL

 

[Eldorado828]

I use that same app but just put the mic up to the phone speaker. A rubber band around the ptt and use the phone to start or stop the tone.

 

[Xracerx13]

I use that same app but just put the mic up to the phone speaker. A rubber band around the ptt and use the phone to start or stop the tone.

Same here. Great minds think alike