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Project #306
OBJECTIVE: To build a one IC AM radio.
Turn on the slide switch (S1) and adjust the variable capacitor (CV) for
a radio station.
AM Radio
Project #307
OBJECTIVE: To build a working FM radio with adjustable
volume.
Turn on the switch (S1) and press the R and then the T button. When
a station is heard, adjust the volume using the variable resistor (RV).
The resistor controls the amount of signal into the power amp.
Turn on the switch (S1) and press the R button. Now press the T
button and FM module scans for a radio station. When a station is
found, it locks on to it and you hear it on the speaker. Adjust the
volume using the variable resistor (RV). The resistor controls the
amount of signal into the power amp. Press the T button again for the
next radio station. The module will scan up to 108MHz, the end of the
FM band, and stop. You must then press reset to start at 88MHz
again.
Adjustable Volume
FM Radio
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