Am Radio Schematic. The demodulated signal will be available at the base of q1 this audio signal is coupled to the base of q2 for further amplification. It uses only 2 transistors and few passive components which makes is very easy to be constructed.
Only a few simple parts are needed to pick up am radio waves. It turns out she did the same as a kid with her rocket radio pulling in stations around the north east us corridor. Assembly of your am 780k am radio kit will prove to be an exciting project and give you much satisfaction and personal achievement.
All general purpose transistors should work in this circuit you can use bc549 transistors for this circuit.
The coil l1 and variable capacitor c1 forms the tank circuit. It uses only 2 transistors and few passive components which makes is very easy to be constructed. Schematic diagram am 780k the am 780k is a tuned radio frequency trf receiver of the standard am amplitude modulation broadcast frequencies 550khz 1600khz. As a kid one of my favorite past times was tuning the am dial on my favorite radio after bedtime.
