Chapter 130 Candidates for the Northern Expedition Electronic Development

Chen Yufeng smiled and said, "Zhimu! Are you worried that I'm getting older? My body can't be compared to the average young person, don't worry. This time in the northern expedition to the grassland, the situation will be very complicated, I think it is still me and Mr. Ouyang personally led the troops to the expedition. Liu Yun: It's okay for them to fight, but what I'm afraid of is that this time it's not as simple as a simple war. We settled down on the north side and withdrew again. ”

Ouyang He also said: "If Mr. Chen's health is fine, I think Mr. Chen will go for a trip." This time we will face a lot of problems. We want to gain a foothold in the Hetao, but everyone knows that it is a place with fertile water and grass, and we all want to develop there. I'm afraid we need to fight what should be fought, buy what should be bought, and the situation will be complicated. ”

"I'm really worried that Uncle Chen won't be able to bear it there, and he will be old after all." Zhang Zhimu said.

"Oops! Our conditions are much better. There are rubber wheels and steel spring carriages, which is a blessing. Chen Yufeng said: "You can relax!" My body is fine. ”

"One more thing, it's a great thing. Yangchang their wireless telegraph succeeded. Zhang Zhimu said: "I see that Uncle Chen actually sent his own guards. ”

"Huh! Let's be honest. If it weren't for the fact that I couldn't leave people here, I would have wanted to stand guard for them. It is impossible to overstate the importance of this matter. Chen Yufeng said: "With this thing, we can contact our families wherever we go." At the beginning, they had a successful experiment here in Yaogang and told me. I asked them to go to Lingshui Wharf to try it again, and if it was successful, I asked them to go to Tongguan to try it. Fearing that something would happen, I asked my guards to follow them. He also succeeded. It seems that if it is done, there is no problem with the entire territory of the Ming Dynasty being connected. ”

Zhang Zhimu said: "In the future, we will be able to communicate all over the world. ”

"Just that thing, can it be that strong?" Chen Yufeng was a little unconvinced.

Zhang Zhimu said: "In the future, we can build a high-power base station in Yaogang, and the radio station outside can be made smaller." The transmitting power here can be very large, so that the power that reaches the receiving stations around the country can meet the receiving needs, and the low-power signals they transmit can receive telegrams after being received by our high-power base stations and then amplified by high magnification. ”

"We don't understand what you're saying. But I understand, I'll get a big one here, and a small one outside. Isn't it? Chen Yufeng asked.

"That's right." Zhang Zhimu said: "In fact, the short-wave communication in this experiment is reflected downward through the ionosphere in the sky. Basically, it is not hindered by obstacles such as mountains. When you go out on the march, strive for every division or even every regiment to be equipped with a radio. That's when it's much easier for you to command. ”

"I think it's for Li Mao, and Fan Chengkun, their warships are equipped with radios." Ouyang He said: "It would be nice if their telegram was connected. ”

"That's right! There are also Quanzhou and Guangzhou, and Li Mao will go to Changsha to open a store. Radios are all needed. The more Zhang Zhimu thought about it, the more excited he became.

"Mr. Zhang, they want to reward Yangchang this time!" Ouyang He said: "But it has to be done in secret. ”

"You must pay special attention to the matter of secrecy." Zhang Zhimu said, "I can make this kind of radio station a little smaller." Give it to Li Zhi for them. If their people had a radio, it would be easier to send the information over. ”

Zhang Zhimu just came back, and Chen Yufeng seemed to have a lot to say, but thinking that Zhang Zhimu should also go home, he said, "I think Zhimu should go back early." There must be something waiting for you at home today. ”

"It's okay, I told Yang Yulin, when the family meal is ready, I will be notified." Zhang Zhimu said.

"There's one more thing I'll tell you, just go home." Chen Yufeng said: "Our telegram to Datong and Ningwuguan has been opened. ”

"I'm going to have to talk to Kill Tiger Mouth and Zhangjiakou soon." Zhang Zhimu said.

"Whew! We don't have any wires anymore. Otherwise, you can't stop. Now the copper inlaid with Datong ginger has been shipped. Yang Chang and Li Di are hurrying to produce wires. Chen Yufeng said: "There is one more thing you must be happy to hear. We have two megawatts of alternating current here. Li Di: They have replaced the motors on many machine tools. ”

Of course, Zhang Zhimu was happy to hear the news, because the electricity in the kiln gang had long been tight. Li Di: They must have replaced the DC motor with an AC motor. Not only should the DC motor be replaced, but also the control mode should be changed. It seems that Li Di has done a lot of preparations.

"It's a big step forward. Now we can develop a larger generator set. We are still in the initial stage of electricity consumption, and our electricity consumption will double in the future, which requires us to build larger generator sets to solve this problem. Zhang Zhimu said: "Military and military affairs, I don't care if you worry about it." I have a few more important things to arrange tomorrow. ”

Back at home, Zhang Zhimu saw that Princess Anping was not there, and asked Yang Yulin: "Didn't you say that you would take Princess Anping home for dinner?" ”

Before Yang Yulin could answer, Huang Yukun said, "Let's stay." But she said she was anxious to see his brother. I said I'd take her brother over for dinner! But Princess Anping said that she didn't need to, she just wanted to stay with her brother for a while. We can't force people to stay. Princess Anping is not here, and Xiao Hongyu has also returned to his master. ”

"Good! They don't eat here. Keep the good stuff for us to eat. Isn't it a little tiger? Zhang Zhimu saw that Xiaohu had been staring at a table of delicious food for a long time, and he could see that he didn't dare to make the first move under Huang Yukun's repeated orders.

Xiaohu nodded in agreement and didn't dare to speak. I'm afraid that as soon as I speak, Harazi will flow out.

Xiaoqing asked, "Uncle, can you move the gift you brought back to us?" ”

"Of course, why haven't you moved yet? I'm to blame for this. I'll just tell you. After speaking, Zhang Zhimu asked Yang Yulin to get gifts for the children.

After Yang Yulin took out the children's gifts, the two children took their gifts and went to their own house to play. There are a lot of things left, all of which are things that Xiao Hongyu picked for Yang Yulin and Huang Yukun. And, of course, something for my cousin.

Yang Yulin thinks that the more things, the better. Huang Yukun came in from the kitchen and said, "Why did you buy so many things this time?" ”

Zhang Zhimu said: "I asked Xiao Hongyu to help pick it." She said it was all for you. ”

Hearing that Xiao Hongyu helped pick it, Yang Yulin's face was a little unhappy. Zhang Zhimu hurriedly said: "And Yang Jing will help take it!" Don't get a little sour again! ”

Listening to her brother follow and take things, Yang Yulin's face improved a little. Yang Yulin is a person whose joy and anger are written on his face.

Huang Yukun shouted as if he was fine, "Xiaoqing, Xiaohu has eaten!" ”

The two children agreed, but before they came down, Huang Yukun said: "These two children have made you spoiled." ”

"How is the second tiger?" Zhang Zhimu asked.

"I went to sleep after eating." Huang Yukun complained, "I thought you had forgotten, you still have a second tiger?" ”

"Then how can you forget. It would be nice when he knew to ask for a gift. Zhang Zhimu said: "Let my cousin also come out for dinner!" Guests don't come, we enjoy it to ourselves. ”

"You invited that princess, why do you still invite that play." My cousin muttered in, "I don't want to serve her!" ”

"Don't be a joker all the time." Zhang Zhimu was very angry when he heard this, "People eat by their ability." Why do you talk about people? What are people who are not as good as you? ”

Zhang Zhimu's words caused "public anger" at home, and Yang Yulin said: "It's your own family." We didn't say anything! ”

Huang Yukun said: "If you always think that we are inferior to her, you can marry her." ”

"Do you think that if you marry someone, you can marry someone?" Zhang Zhimu was a little impatient with these women, "You don't have any reason to be disrespectful to Xiao Hongyu. She is also a person who has suffered a lot. You're all women, why don't you have a little compassion. This time, Little Hongyu almost didn't come back. You see her smiling all day long, she just doesn't show her pain in her heart. ”

Zhang Zhimu rarely loses his temper, and today he really can't help it.

Under the questioning of Huang Yukun and them, Zhang Zhimu told the story of how Xiao Hongyu was rescued after being robbed. In the end, Zhang Zhimu said: "If something really happens to Xiao Hongyu this time, we are really sorry for her." Now that she's famous, she should be kept safe wherever she goes. But we were all careless. Let her be hurt so much again. ”

Zhang Zhimu's words made several women silent.

That night, Zhang Zhimu slept in his room, and he was really a little angry with Yang Yulin and Huang Yukun's attitude towards Xiao Hongyu. My cousin said it, she was that kind of person, and it was over when she was done. When I see Xiao Hongyu, I will still lose a smile. Why do these two women look at Xiao Hongyu unpleasantly.

In fact, the reason is very simple, they all feel that Xiao Hongyu threatens them, because she is close to their man.

As soon as he arrived at the office the next day, Zhang Zhimu asked Yang Yulin to call Yangchang and ask him to come over.

Soon, Yang Chang came over with the team leader who was doing the experiment in Tongguan. It can be seen that the excitement is written between the eyebrows of the two.

As soon as the two entered the house, Zhang Zhimu hurriedly gave up his seat and said to Yang Yulin: "Brew a pot of Longjing that I brought back!" He turned around and said to Yangchang: "I want to congratulate you!" I didn't expect you guys to get the shortwave radio out so quickly. ”

Yangchang said proudly: "Mr. Zhang, in fact, after we turned on the transmitter and receiver of the medium wave, we already had a feeling for the radio transceiver. Then we came up with a short-wave oscillation circuit, and I thought it was pretty much the same. First of all, after we made the short-wave transceiver, we did experiments in front of and behind the kiln. Later, we felt that this matter was too big, so we reported it to Mr. Chen. Unexpectedly, Mr. Chen attached more importance to this matter, and he personally called Lingshui Wharf and arranged for us to go over to do experiments. The experiment was completed, and Mr. Chen repeatedly instructed us to keep it absolutely confidential. He also sent people to protect us to Tongguan to do experiments. I think there should be no problem with the current machine going to Yangzhou. ”

The excited Yangchang said endlessly in one breath.

"You've done a great job. This matter must be kept secret. You go back and make a list of all the participants according to the size of their contributions. Mr. Ouyang, they all said that they must reward you heavily. Zhang Zhimu said: "Your next step is to immediately commercialize this kind of radio station. To mass production. But you still have two problems to solve, one is to make the product as small as possible. It is easy to carry on the march, and it is easy to assemble. It can be used by those who have undergone simple training. We have a lot of colleagues who work behind enemy lines, and their conditions are very harsh. Usually you have to hide the equipment and take it out when you use it. So make sure to make the radio compact and lightweight. Don't be afraid if the power is a little smaller. We can build a high-power base station in Yaogang as a relay for all radio stations. In addition, I will ask Li Yunhe to make a radio car for you, and the radio station in the car can also be more powerful. It is also necessary to design a raising mast on the car. Now that this radio station has been successful, don't make major changes. To reinforce the devices, but also to prepare some wearing parts. Let those trained telegraph operators be able to replace them themselves in the event of a simple failure. ”

Yangchang took Zhang Zhimu's words, finished them, and said: "Mr. Zhang, I will set up a radio production workshop when I go back." This kind of radio station will be produced first, and the others, the miniaturized and high-power ones you mentioned, I will let them develop them. Let the radio station be assigned to the places we need urgently. At least our ships should have them. ”

Zhang Zhimu was very happy that Yangchang could have an overall idea, "Yes! It's good that you can think that way. I have a suggestion, you guys should do a division of labor. One is the production plant, not to mention, you must have some people to develop various components, the production workshop of the tube should also be independent, to build an assembly line, the tube is a large amount of commodities in the future. All kinds of components also have a special production line. ”

Yang Chang said: "Our electron tubes are now used with a production workshop for light bulbs. I also know that if we're going to be a radio station, we're going to need a lot of radios. This mode of production is far from sufficient. I think we're going to build a separate electronics factory. Half of it is used for the production of components, and the other half is for the production of telephones, telegraphs and other products. ”

"It's long overdue." Zhang Zhimu said: "But those of you who have worked on electron tubes should organize a group and work on something new with me." ”

"Anything new?" Yangchang was pleasantly surprised.

"There are still a lot of new things, and the electronic technology you are engaged in now can only be regarded as just getting started." Zhang Zhimu said: "I want you to build a cathodoluminescent digital display tube. ”

"What is a cathodoluminescent digital display tube? What is it for? ”

"The electron tubes you make actually control the current by controlling the electrons emitted by the filament." Zhang Zhimu said, "Some materials, such as zinc oxide and zinc sulfide, emit light when they are bombarded by electrons. This material can be called fluorescent. We let the electrons in the tube bombard the phosphor. In this way, we can control the on/off of the current and control the on/off of this light. We make this glowing tube into the shape of a stroke, and we can display the glyphs. ”

Zhang Zhimu drew a digital tube on the paper that could display Arabic numerals, and said, "You see, we can display all Arabic numerals with seven strokes of the digital tube." ”

Yangchang looked at the picture drawn by Zhang Zhimu and asked, "This thing, it's not difficult to get it out according to what you said." But what does it do? ”

Zhang Zhimu smiled, "This thing is too useful to get out." Let's put it simply. As you can see, the frame of our Yaogang Hotel building has been built, and there will be many elevators in the building. Now they choose to indicate which floor the elevator is going to is a pointer indicator. Wouldn't it be better if we used this digital indication? Besides, you now use pointers to measure resistance, voltage and current, etc., if you can use digital numbers to display the numbers directly, wouldn't it be more convenient? In fact, Zhang Zhimu also wants to say that these are necessary to engage in digitalization in the future.

Yangchang: Now they just nodded and said, "Yes!" "Actually, it is impossible for them to understand the usefulness of this thing at once, but they know that what Zhang Zhimu asked them to do must be of great use. This thought has been ingrained in their hearts.

Zhang Zhimu said: "In addition to this group, you also have to match me with two people who are familiar with tube circuits, and I also want to ask Lu Bingyi to send two students over to work on digital circuits together." ”

"What are digital circuits for?" Yangchang was a little confused again.

Zhang Zhimu knew that he couldn't understand what the digital circuit was for, and said: "To put it simply, it is to engage in O and 1 circuits, for example, if the tube is turned on, it is 1, and if it is not conducted, it is O." I'll use them to get a computer in the future. ”

"Do computers do arithmetic?" Yang Chang asked.

"Arithmetic is the easiest thing to do, and with computers, our world is different. Let's take our time. Zhang Zhimu said patiently. AFTER SPEAKING, ZHANG ZHIMU WAS VERY UNCALM IN HIS HEART, IN HIS PREVIOUS LIFE, HOW MUCH TIME AND ENERGY WAS SPENT STUDYING C++ AND DIRENCTSHOUW, BUT NOW HE HAS TO START STUDYING FROM THE GATE CIRCUIT. God's joke is just too big. When I was learning computers at school, my teacher said that the world's first computer was an electronic tube, the size of a building. Do you want to build a computer the size of a building? No, I should take a shortcut, I must make semiconductors, and in the future, I will develop integrated circuits. This tube circuit can only be a workout team. Give them a little idea of digital circuits.

The only thing that makes Zhang Zhimu very confident is that Yangchang and the others are too smart, as long as they give them a little idea, they will play very thoroughly, and sometimes, Zhang Zhimu sighs to himself.

After seeing that Zhang Zhimu's work was finished, Yang Chang said: "There are still a few things to report to you." ”

"Good! I'd like to hear about your other progress. ”

"According to what you taught us, all of our circuit boards are made of copper clad laminates. Soldering is also using tungsten copper alloy wire as a heater to heat the copper soldering iron tip, using tin wire as solder, and soldering with rosin oxidant. Product quality and production efficiency have been greatly improved. Yang Chang said, "And the group we are doing on the record is making rapid progress, and it has been able to play live music through the record, but the effect is not good." But this is a remarkable breakthrough. It's only a matter of time before it reaches the point of usefulness, and I let them continue to refine it. It's just that the tightrope recording has not worked, and Li Di also sent us a person who is engaged in motors to join this group, but the progress is still not good. I can only encourage them to keep trying. ”

Zhang Zhimu felt that the wire recording should be stopped, and said: "I think so, your records must continue to work hard, and you must come up with high-quality and practical things." But I'll stop watching your tightrope recording. Just go straight to the tape recorder. ”

"Tape recorder?" Yangchang: They haven't heard of tape recordings.

"That's right! In this way, we use a tape, coat it with a very uniform layer of magnetic powder, and move at a uniform speed through a magnetic head made of a magnetic body, and this magnetic head has a changing magnetic field generated by a changing current. Then this changing magnetic field is recorded on this tape. If I pass the tape through a head, it won't produce a small change in current, and we amplify it with a triode, so we can restore the original current. Zhang Zhimu said.

"If we use a microphone to record the current generated by the sound on tape, we can use the tape to play the sound again. The principle is the same as that of steel wire. It's just tape instead of wire. "But there are a few things that need to be redeveloped, one is a tape, and there is a machine for recording and playback." ”

"We can coat the tape with magnetic powder in a paper bag, but we are afraid that the life of the paper tape will be short. We'd better use duct tape. Qingfengzi and they are working on photographic film, we can see if we use their film. We can use iron oxide for magnetic powder, but the tapes made of iron oxide interfere with each other a bit when winding. We can use cobalt oxide in water to make magnetic powder in iron oxide, and then mix shellac together to make magnetic paste and apply it on paper tape or tape. All of this will require you to do a little more experimentation. Zhang Zhimu said.

When Zhang Zhimu was in school, he dismantled his own cassette recorder into a bunch of parts several times, and many of his classmates' tape recorders were not working, and he repaired them. Besides, as a radio major, the circuit part is easy to understand, but it takes a lot of time to deal with those complex mechanical parts. It seems that the original effort will soon be useful again.

Zhang Zhimu said: "As for the structure and principle of the tape recorder, I will tell you about it after the people from your group come." It's just that it takes a bit of work to keep the tape at a constant speed. If you think about it, if the tape is wound on two wheels, because the thickness of the tape is different, and the wheels are moving at a uniform speed, then the speed of the tape must not be uniform. To ensure the uniform motion of the tape, a set of mechanisms is required. ”

Yang Chang said: "When we do tightrope recording, we also need to face this problem. We spent a lot of time on this issue. ”

Zhang Zhimu thought to himself that in his previous life, the tape recorder had been simplified to that practical structure after several generations of efforts. It was also the brainchild of many people's efforts.

"I'll tell you about the tape recorder in the future. Tell me, what's going on with your medium-Polish radio station? ”

"The transmitters are being debugged, and we are going to get four transmitters. After two stations, two bands will be broadcast, and the other two will be used for backup, and once there is a problem, it can be replaced. Yang Chang said: "The design of the transmission tower has also been completed, and we want to find a place to build the transmission tower on the post of Yaogang, and we would like to ask you for help." We don't have the ability to choose a place. ”

"I've really thought about it for you. I think the office building of our kiln is about to be completed. How about building the tower on the roof? Zhang Zhimu said, "Or build it next to the martyr's tomb in Dongshan, which is a little higher than our post, and you can also build a radio station office building below."

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Five-line scores, oscillating circuits, caesarean sections. Guo Shoujing made alloy cannons, and Guan Hanqing created "Journey to the West". --Progress of "Memories of the Southern Song Dynasty".