0
$\begingroup$

I recently bought a cheap (@ US$7) transistor radio, with an FM band, an AM band, 4 SW bands, and 2 VHF (tv audio) bands covering channels 1 to 13. However, i later discovered that i couldn't tune in to the last station in the AM band (1602 kHz).

I noticed that there are a few variable resistors in its circuit board. Can i adjust the AM band limits by adjusting one or more of the variable resistor(s) so that i can tune in to the 'missing' station? If so, how do i know which variable resistor to adjust?

$\endgroup$

closed as off-topic by Emilio Pisanty, Martin, David Z Dec 8 '14 at 11:23

  • This question does not appear to be about physics within the scope defined in the help center.
If this question can be reworded to fit the rules in the help center, please edit the question.

1
$\begingroup$

The answer is "maybe" and you will not know which one to adjust, if any, without a circuit diagram. Just record their positions so you can undo any changes you make, and experiment. As you said - it's cheap.

$\endgroup$

Not the answer you're looking for? Browse other questions tagged or ask your own question.