"Make your own radio? Is it possible to make your own radio?"

Du Chen's third aunt asked Du Chen curiously.

"That's right, Third Aunt, of course you can make a radio yourself. As long as you know a little bit about circuits, there won't be any problem."

Du Chen explained to his third aunt.

"Chenchen, can you take me with you?"

At this time, Gu Yue asked Du Chen expectantly.

"No problem, Sister Yueyue, let's go together later!"

Of course Du Chen would not reject Gu Yue's idea. Besides, it would be fun if everyone played together.

Du Chen looked at the eyewear store and felt that it was not convenient to work here. It would be better to go home. Staying in the store would only affect the business.

"Aunt San, let's go home first. It's not convenient here."

"Okay, come over when you're ready for dinner, I'll cook for you here."

Ren Suyun asked a few people to come over for lunch at noon. Just then, a parent brought his child to look at glasses, so Ren Suyun went to greet the customer first.

"Come on, let's go home first. I'll teach you how to make a radio later."

As he spoke, Du Chen had already walked out of the glasses store, and Du Bin and others hurriedly followed.

…

"Wow, Du Chen, is this your house? Why is it so big?"

Zhao Pengfei walked around the room and said to Du Chen enviously that the two brothers each had a bedroom, and the bedrooms were big enough with desks. Du Chen and Du Bin both had their own small spaces. Zhao Pengfei looked at them with great envy.

"Zhao Pengfei, Li Qiang, you two can make the radio in my bedroom. Brother, Sister Miaomiao, Sister Yueyue, the three of you can make the radio in my brother's bedroom. Is this distribution okay?"

"No problem, but what about you, Chenchen?"

Ding Miaomiao asked Du Chen.

"Sister Miaomiao, I'll be watching over the two bedrooms. If you have any questions, just call me. Brother, Sister Miaomiao, first take a look at the circuit diagram of the three-tube radio and see if you can understand it. Zhao Pengfei, Li Qiang, I'll teach you how to read the circuit diagram first."

Du Chen assigned everyone. Du Bin and Ding Miaomiao had already led Gu Yue to their bedrooms. Du Chen also led Zhao Pengfei and Li Qiang to Du Bin's bedroom. Some things only needed to be explained once, otherwise Zhao Pengfei and the others would have to be taught again. In the bedroom, Du Chen took out the circuit diagram of a three-tube radio and explained it to Du Bin and Ding Miaomiao.

"Brother, Sister Miaomiao, can you guys please see if you can understand this circuit diagram?"

Du Bin and Ding Miaomiao carefully looked at their respective circuit diagrams. They contained nothing but electronic components such as resistors and capacitors, which were clearly marked on the circuit diagrams.

"Chenchen, I can understand everything."

After a while, Du Bin said to Du Chen, and Ding Miaomiao nodded to indicate that she understood. Sure enough, this thing was very simple for high school students. Although they might not understand the working principle, it was still easy for two high school students to know where to install and solder which components.

"Brother, Sister Miaomiao, look, this is a soldering iron. Be careful not to burn yourself when using it. This is used to solder electronic components. After heating the soldering iron, you can melt the solder wire and then solder. Watch me do it."

While talking to Du Bin and the others, Du Chen picked up the soldering iron and demonstrated how to use it to them.

"Also, if the component pins are not soldered, you can put some rosin on the pins to remove the oxide layer. That way, you can solder them easily."

Du Chen deftly soldered the electronic components to the circuit board and showed it to a few people. He then grabbed the electronic components with his hands and shook them. They were very solid and did not move at all.

"Do you understand? It's very simple!"

As Du Chen spoke, he used the soldering iron to remove all the electronic components that had just been soldered.

"Hey, Chenchen, why did you take it off? Just leave it there. It will be troublesome if you take it off!"

Du Bin watched Du Chen soldering components and couldn't help but stop Du Chen anxiously.

"Why wouldn't I take it off? I'm leaving it to you so you can save trouble. I'm teaching you how to make a radio, not me. I've already soldered everything, and you think it's easier for you, right?"

Du Chen rolled his eyes and said to Du Bin, how could he not know what Du Bin was thinking, it was just a matter of soldering fewer electronic components.

"Also, when you're soldering, be careful not to leave the soldering iron on the circuit board for a long time, or you might burn it. Finally, be careful not to burn yourself. Always unplug the soldering iron after use, and put it away. Be careful not to burn anything else!"

"Okay, brother, you and Sister Miaomiao and Sister Yueyue can study here on your own. I'll take Zhao Pengfei and Li Qiang to my room."

Du Chen thought about it and decided that there was nothing else he needed to remind anyone of, so he spoke to Du Bin and Ding Miaomiao.

"Alright, alright, come on over there, we'll do the research ourselves!"

Du Bin waved his hand impatiently at Du Chen, signaling him to get out. He couldn't wait to assemble a radio himself. Wouldn't that be more interesting than studying?

Du Chen no longer had the chance to talk to his brother Du Bin, and led Zhao Pengfei and Li Qiang to his bedroom.

"Here, look, this is the circuit diagram of a single-tube radio. It's much simpler than the three-tube radio my brother and his friends use! Look, this symbol represents a resistor, this place is a capacitor, and here..."

Du Chen pointed to the circuit diagram and explained it in detail to Zhang Pengfei and Li Qiang, telling them the functions of these electronic components.

"Don't worry, you two. You haven't come into contact with these things yet, but they're very simple. Just look at them and think about them, and you'll learn them. We'll also teach you these things in the second year of the new year. So just treat it as a preview now!"

Du Chen's mouth was a little dry after speaking, so after taking a sip of water, he summarized to the two of them.

"Du Chen, aren't you also in the first grade of junior high school? How do you know so much? Your brother is already in the first grade of high school, right? He doesn't know these things either, right?"

Zhao Pengfei asked Du Chen curiously. He didn't expect that Du Chen had so much knowledge, which made Zhao Pengfei very envious.

"Hey, it's nothing. Just read more and you'll understand. If you use the time you normally spend watching TV or reading comics to read, you'll be able to understand a lot too. Most importantly, if you just keep your mouth shut and don't talk so much, you'll find you'll have a lot more time."

As he was talking, Du Chen couldn't help but complain about Zhao Pengfei, and Li Qiang laughed at him.

"Du Chen, what kind of books do you usually read?"

Zhao Pengfei didn't know what to say for a moment after being confronted by Du Chen, but Li Qiang asked Du Chen curiously. He had always seen that Du Chen must be a good student, but he didn't expect that Du Chen knew so many things, including making astronomical telescopes and radios. In Li Qiang's opinion, Du Chen was too well-rounded, except that he was too short.