Wang Weidong returned to his home in Harbin and saw that his mother Li Yufeng still had not returned.

He handed the newspaper to Xiaoya and said, "Read the things in this newspaper to your grandmother as they are, so that she can also receive an education!" ”

Xiao Ya picked up the newspaper project and read in a childish voice the whole process from Kong Lingguang's eucalyptus to the final execution.

Wang Weidong's grandmother Huang Guiying squinted slightly and listened, and let out a sigh or two from time to time.

It wasn't until Xiaoya finished reading the newspaper that Huang Guiying asked, "Is this kid really from Fengshan County?" ”

Xiangyang Chemical Plant is located in Fengshan County, just 20 kilometers away from the county seat.

Therefore, the employees of Xiangyang Chemical Plant also feel that they are from Fengshan County.

"This kid, in fact, I have known each other for a long time, didn't I go to the Fengshan vegetable market every day to sell vegetables when I first came back from the countryside? He was there at the time, but the boy was idle at that time, cheating on food and drink. Later, the more he was deceived, the more he was deceived, and he was deceived abroad, and finally he was deceived into a gun! Wang Weidong replied.

Of course, he can't say that in fact, Kong Lingguang's ability to be caught in Vladivostok has something to do with him.

"When you were a child, your grandfather and I weren't used to you, aren't you still very good now?" Huang Guiying said.

"You and my grandfather beat me a lot!" Wang Weidong corrected.

After dinner at home, Wang Weidong rushed to Professor Zhang's house.

He would like to ask Professor Zhang about the tube.

Professor Zhang used to study radar, and later studied the transmission and reception of radio waves from satellites.

When they arrived at Professor Zhang's house, the two exchanged a few words.

Professor Zhang lamented Shi Mingchuan's resignation. People of his age are a little incomprehensible about Shi Mingchuan's resignation.

"Professor Zhang, have you ever heard that there is a scientist named Barentine in the northern powerhouse?" Wang Weidong asked.

"Of course I've heard of him, he's the world's authority on tubes! I've read many translated articles written by him, and they're very inspiring. Professor Zhang replied.

Professor Zhang's expression now is like a carpenter mentioning his ancestor Lu Ban.

"This time I went to Moscow and visited him at his house." Wang Weidong continued.

"Although the technology in transistors is developing by leaps and bounds. But the technology in the tube is not useless. In many ways, tubes are also used. It is a pity that there are very few opportunities to go to the great northern countries for academic exchanges, and if I had such an opportunity, I would have asked Mr. Barentin many questions. Professor Zhang said enviously.

Professor Zhang was very envious of Wang Weidong for this opportunity to meet Barentine face-to-face, and he felt that it was not enough to just talk about it, so he pulled Wang Weidong into his study, and then opened the cabinet door.

Wang Weidong looked down and saw that the four floors of the cabinet were all large and small and even strange-shaped electron tubes.

"I've been collecting these things since I was in my 20s until now!" Professor Zhang looked at the hundreds of electron tubes and said as if looking at a baby.

Seeing Professor Zhang's current appearance, Wang Weidong couldn't help but think of his father Wang Haifu. In his own home, Wang Haifu, an old worker, also saved dozens of wrenches, pliers, hammers and other tools, and was reluctant to throw them away like a baby.

"Professor Zhang, I came here this time to ask you, if I import technology from the big northern country now, is there a future for the production of electron tubes?" Wang Weidong asked,

In fact, what he wanted to ask was whether there was any way to make money.

Hearing Wang Weidong's question, Professor Zhang didn't know how to answer for a while.

Since the 50s, China has imported technology from the northern countries and East Germany to establish several electron tube factories, the largest of which is the one in Beijing, with an investment of 100 million yuan and tens of thousands of workers, known as the largest electron tube factory in Asia.

However, with the development of the times, the electron tube has been gradually eliminated, and Professor Zhang has a deep feeling in this regard. He majored in radio in college, and a considerable part of the content in his textbooks was electron tubes, which were inseparable from his research work after graduating from university. However, since the sixties, electron tubes have been used less and less in experimental research, while transistors have been used more and more, and now there are very few tubes used.

As far as he knows, BJ's largest tube factory in China is also on the verge of closure, and more small tube factories have closed down and disbanded and disappeared.

"I'm studying radio signals, but there are still many applications of tubes in this area. For example, in high-power radars, it is necessary to use electron tubes, and the electron tubes also have an advantage, that is, they have stronger anti-interference, which is in the use of military products. In terms of civilian products, there are many places where tubes are used, and as far as I know, there are still a lot of tubes used in audio. European and American countries are much more advanced than our country in the development of semiconductors, but even so, there are still tube factories in these countries and they are doing very well. Professor Zhang said.

"You mean I can do this tube factory?" Wang Weidong asked.

Professor Zhang hesitated and replied: "Even today, the technology of the northern powers in terms of electron tubes is the most advanced in the world, if you can import their advanced technology from the northern powers." I think you can do it, but not on a big scale. ”

Back at home, grandma Huang Guiying and Xiaoya had already slept, in order not to affect the child's learning, the whole family was very conscious, watching TV would not be too late, only Chen Jihong was still waiting for him.

The husband and wife were lying on the bed, and Chen Jihong stretched out his hand and pinched Wang Weidong's arm fiercely.

Chen Jihong felt that the family was in such a mess now, four old people and a child were not at home, they were all tossed by Wang Weidong.

Wang Weidong endured the pain on his arm and said, "You pinch me again, be careful that your son will bite off your ear in the future!" In the future, you will go to the grove by yourself, and I will never accompany you! ”

The next day, Wang Weidong put the newspaper he bought on the train yesterday into an envelope, on which was written the address of Chen Jiwu's troops, and then put it in the mailbox.

Wang Weidong wanted to take Chen Jihong to the south, but this time Chen Jihong said that she would not leave, and if she couldn't see her son, she didn't plan to go anywhere.

There was no way, Wang Weidong could only go to the capital alone. After arriving in the capital, Wang Weidong called Ou Xiaoyang and Song Yu, neither of them was in the capital, Song Yu was in Shanghai, but Ou Xiaoyang ran to Fushan.

Wang Weidong called the factory and asked Shi Yueshuang to answer the phone.

"Yueshuang, although I have your phone number, I think it's a bit presumptuous to call your parents directly, can you call home first? Let's just say that I am in the capital now, and I want to visit your parents at home. Wang Weidong said.

Subsequently, he said that he wanted to import technology from the big northern country and build a small electron tube factory in China.

In the end, Wang Weidong instructed Shi Yueshuang on the phone: "Don't tell anyone about this!" ”