Qin Tiansheng smiled and said to himself, "As soon as Brother Tang said it at that time, I was tempted. The next day on New Year's Eve, I went to take this guy out."

"Haha, at that time your third uncle took a piece of calendar paper, wrote a few words on the back and pasted it on the wall, 'Repair the radio - fast and good'!"

“The Chinese New Year is approaching, and everyone wants to repair their broken electrical appliances so that they can have a happy New Year.

The people who repaired home appliances went home to celebrate the New Year, so the business of my small stall was very good at that time.

After seven days, I earned 300 yuan. You must know that your third aunt's monthly salary at that time was only 38.5 yuan.

That’s really a lot of wealth. So, our brothers decided to build a factory specifically for assembling speakers.”

Qin Tianshan patted his thigh, "We had produced the samples at that time, and we had already thought of the name, called 'Xinyi'..."

"Why is it called this name?" Qin Haiyan was a little confused.

The four brothers looked at each other and laughed heartily again.

Qin Tianchuan smiled and wiped the tears from his eyes, "New-year, means New Year."

It took the kids a long time to react, and they all laughed out loud, "It's a combination of Chinese and Western things!"

Qin Manman then asked, "Hey! That's not right. Now that you have developed the product, what happens next?"

Qin Tianming sighed, "In those days... individuals were not allowed to do this, so we didn't do it.

Three years later, after the social environment changed, we started to produce quail eggs."

Qin Haiyan suddenly realized, "Oh, no wonder you are so emotional when you see Xiao Qing playing with the circuit board. It turns out you are seeing your younger self."

These words made Qin Tianshan's hands feel a little itchy, "Let's go and have a look?"

Qin Tianming thought for a while, put down his wine glass, "Let's go!"

The four brothers didn't say anything and walked quietly into the house.

Qin Manman almost couldn't hold back his laughter when he saw this scene.

A man is a boy until he dies!

What is the difference between the behavior of these four old men who are over 200 years old together and going to the bathroom with the boys during recess?

In the room inside, Qing Yun put on goggles and earphones on his ears, holding a soldering iron in his hand and concentrating on soldering.

Four old men stood behind him, tiptoeing and peeking at the circuit board and the circuit diagram in front of his desk without making a sound.

After all, Qin Tianming came from the Electrical Engineering Department. After thinking about it for a while, he whispered, "It's a mobile phone."

Then he himself hissed.

Unlike Qin Manman who knew nothing about this, he knew it very well.

Mobile phone, can this be made by humans?

In that era, mobile phone chip manufacturers only provided chips to mobile phone manufacturers. Other aspects, such as functional components and software platforms, needed to be solved by the mobile phone manufacturers themselves.

This is also the reason why mobile phone production costs were too high, R&D and production times were too long, and industry barriers were high at the beginning of the century.

The reason why copycat phones were so popular in that era was because MediaTek provided a one-stop mobile phone solution that pre-integrated mobile phone chips and software platforms.

This suddenly lowered the threshold for mobile phone manufacturers to make mobile phones. Manufacturing mobile phones was as easy as opening a restaurant.

The chip in Qingyun's hand is MediaTek's earliest MT6205 chip solution, which supports GSM mode but does not support GPRS, WAP, MP3 and other functions.

But it comes with its own software platform, making Qingyun's "mobile phone" a reality.

At this time, what he is working on is integrating dual-SIM dual-standby function and...

"Why are you ringing the phone so many times?" Qin Tianming was confused.

I have never seen a mobile phone with a ring of speakers!

Qingyun didn't even look back, "Hey, it's loud, so it's convenient for the elderly."

Qin Tiansheng's eyes suddenly shone when he heard this, and then he pointed at his drawings,

"Then you are missing a resistor on the right side. With so many speakers, you have to divide the voltage. If the voltage is unstable, your board will burn."

Qing Yun turned to look at him in confusion, "Third uncle, do you understand?"

Qin Tiansheng rolled his eyes at him, "Nonsense! You weren't even born when I was playing with circuit boards!"

He pointed to the drawing, "Look, you are using a lithium battery, the working voltage is 3.7V..."

"No, Xiaoqing has a 1084 three-terminal voltage regulator on the right side. It can indeed use one less resistor, but on the left, Xiaoqing, you added too much voltage regulator."

The eldest brother, Qin Tianming, is also a distinguished professor in the Department of Electrical Engineering, and his radio research is still superior to that of Qin Tiansheng.

But Qin Tiansheng is not so easy to persuade, "How can it be less! His front section has a 102 resistor, which is not enough. It needs to be replaced with a 210 resistor!"

"210 resistor? Can't you be more exaggerated? This is a mobile phone, how do you put it in it?"

"Why can't it fit in? Use a shell to show it."

"Is your mobile phone worried about the battery? How do you put the battery in with such a thick resistor?"

"Isn't it okay to just hollow out the circuit board? Besides, the back of your phone is full of batteries?"

The two people started quarreling directly.

Chen Wan sounded a little worried outside, and asked in a low voice, "Should we go in to persuade him?"

The eldest aunt shook her head, "It was like this when they were making radios. Tianming and Tiansheng often quarreled."

As she spoke, the eldest aunt suddenly laughed, "I haven't heard them so happy for many years."

Qin Manman and the others looked at each other in confusion.

They are all so noisy, are you still happy?

Chen Wan was in a daze. She and Qin Tianchuan had not gotten together in the radio era, but they had experienced such a thing in the quail egg era.

However, it was Qin Tianshan and Qin Tianchuan who were arguing at that time.

Qing Yun inside simply took out a few circuit boards and said, "Come on, come on, come and relive your youth and verify it together."

Qin Tianchuan gave him a big showdown, "That's outrageous! Your uncle's eyesight can't work, and they said, you do it."

Qin Tianming's hands were itchy, so he asked Qin Haiyan to bring in a pair of reading glasses, "It's okay, I'll be fine with my glasses on."

Qin Tiansheng also rummaged through the box to find a soldering iron, sat across from him, picked up the circuit board and showed off his skills.

Several young people stood aside and watched with their mouths agape. Qing Yun stood up and gave up his seat to Qin Tianming.

After all, I was a college student in the 1980s, so my hands-on ability is really impressive.

Qing Yun didn't know why, but the further he went, the more practical skills of college students declined.

They just made a verification circuit, and the two stubborn old men completed it without spending much time.

If nothing unexpected happens, something unexpected will happen.

Black smoke emitted from both circuit boards, and even the battery almost burned.

Qing Yun quickly opened the window to let in the wind, and the four old men left the house cursing.

It's a bit embarrassing.

In the courtyard, Qin Tianming and Qin Tiansheng looked at the black marks on each other's faces and laughed. Qin Tianshan and Qin Tianchuan also laughed.

Taking the handkerchief handed over by his daughter and wiping his face, Qin Tianming let out a circle of smoke and said, "I haven't been this interesting in a long time!"

Qing Yun, who was cleaning up the messy table in the room, felt a sense of boredom in her heart.

These two old men have no moral ethics!

Verify the circuit. The multimeter should stop when it starts beeping.

The two old men just didn't believe in evil and had to continue.

Well, now, the two sets of materials are gone.

The most important thing is that the multimeter also burned out.

It hadn't been two hours since he got it!

They are all old people with red heads!

Four unscrupulous old men saw him looking distressed outside the window and laughed.

Qin Manman glared at the old men angrily, ran to the main room to complain to his grandmother, and then extorted a generous amount of compensation for consumables from the three aunts.

Without a multimeter, naturally Qingyun’s ‘Adult Lego’ would not be able to continue.

Upon seeing this, grandma took the initiative and kicked out the little ones, and asked Qin Haiyan, Qin Manman and Qing Yun to take the twin sisters, Little Lolita and Little Rouqiu to the giant panda base.

This made Qin Shiwan and Qin Shiyue extremely happy.

It's not like they haven't seen pandas before when they were children, but when they grow up, it's a different experience.

As for Little Lolita and Little Meatball, they don’t have any objections. As long as they have enough candy, they can go anywhere.

…

After putting her great-grandson, granddaughter, and grandson-in-law into the car with a smile, grandma returned to the main room and sat down, asking what she thought of her new son-in-law.
To be continued...