Doosan Radio User Manual
Even if a high-frequency amplifier is added, the detected output power is usually only a few milliwatts. It's ok to listen with headphones, but the speaker is too small. Therefore, an audio amplifier is added after the detected output to drive the speaker.
A machine consisting of mechanical devices, electronic devices, magnets, etc. Converts electric wave signals into electric energy, and can listen to audio signals emitted by radio stations (such as radio and broadcasting). The advent of DSP technology radio marks that this traditional analog radio has gradually withdrawn from the historical stage. Try to listen in a clean place.
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Precautions:
1, the radio should be protected from strong revitalization and external impact, so as not to damage the casing and internal components.
2. The radio should be used frequently, especially in wet weather, so that the moisture in the machine can be removed.
3. The volume of transistor radio is directly proportional to the power consumption, so don't turn the volume up too much to save electricity and prolong the service life of the battery.
4. If you don't use the radio for a long time, you must take out the battery in the radio to avoid leakage and corrosion of parts.
Take the battery-powered radio as an example, if the volume is obviously reduced or the sound is distorted, it means that the battery is used up and needs to be replaced.
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