Looking at the "typical" circuit in the ULN2204 data sheet I can now see a something which is similar to the circuit of the ITT radio.
I can go through comparing the schematic to the circuit and try and identify the inductors. It is not identical as I can only count 1 diode in the schematic. I wonder if there are any significant differences between the ULN2204 22 (in my radio) and the ULN2204A.
On the second radio I have AM working very well, but FM only has hiss, no stations what so ever.
Mike
edit, just discovered the IC is equivalent to the TDA1083 so I may be able to find out a little more on that.
I can go through comparing the schematic to the circuit and try and identify the inductors. It is not identical as I can only count 1 diode in the schematic. I wonder if there are any significant differences between the ULN2204 22 (in my radio) and the ULN2204A.
On the second radio I have AM working very well, but FM only has hiss, no stations what so ever.
Mike
edit, just discovered the IC is equivalent to the TDA1083 so I may be able to find out a little more on that.
