Hi, everybody,

Let me start from the begining:
I bought a kit with a AM and FM radio for me to study signals on the oscilloscope and Signal Generator. I assembled the radio and it was working fine. So I decided to check the waves in the oscilloscope. After I work a long time trying to get the clipping voltage or F3db or make the voltage drop from 2VP-P without success the radio AM stop working. I started to check everything from resistors to the IC LM386 and here is what I found out: Voltage drop from 9 Volts to 376 mV. I check the Ampers in the battery input. Should be less than 10 mA and was 1.39 Ampers!!!
Current without de IC 2.5 Microampers. Voltage approx 900 mV. When I change to FM everthing go back to normal.
The radio is the Model AM/FM-108K Radio Kit from elenco. Schematics and Manual in attached file.
:? Can anybody help! please.

John

Without the LM386 the current is 2.5 microampers. I changed C39.

Thank you again.

John