11-05-2018, 02:32 PM
Note the part number of the IC in the radio is ULN2240 and the one in the Sprague document above is ULN2240A. By the look of the circuit there may be a difference.
But I have been able to make a small improvement to FM by opening the spacing slightly of coil 9.
I can definitely say that 7 is the AM oscillator coil, and yes Terry I made a typo 13 should be AM oscillator C.
What is leading to my confusion is some coils appear to effect both AM and FM.
Mike
But I have been able to make a small improvement to FM by opening the spacing slightly of coil 9.
I can definitely say that 7 is the AM oscillator coil, and yes Terry I made a typo 13 should be AM oscillator C.
What is leading to my confusion is some coils appear to effect both AM and FM.
Mike
