Tech house system

Chapter 72 Class Representative

Wei Shuxun didn't even remember that there was Wei Cheng at all, he even completely forgot that the video camera was still left in Zhou Quan's living room, and his first reaction after he caught his breath was to run away.

He is not an idiot. Although he has never been in a relationship, if he doesn't like him, a man will never kiss another man because he is angry.And Zhou Quan's feelings expressed through his lips and tongue are also undisguised.

Although Wei Shuxun sometimes finds girls annoying, he never thought about falling in love with a man, so he ran away in panic.

When I returned to the dormitory, I found that I forgot to take the video device. Wei Shuxun hesitated and sent Zhou Quan a text message: I forgot my watch at your house, can you send it to me by courier?

Zhou Quanhui: I want to get it myself.

Uh... does this count as being taken hostage?

Think about it anyway, Wei Cheng won't be caught anyway, the video camera is usually just a decoration, not even qualified as a watch, it doesn't matter whether you wear it or not, as long as Zhou Quan doesn't hand it in, it doesn't matter where you put it— —At least until he was at peace, he didn't want to see Zhou Quan.

The next day, Wei Shuxun approached Mr. Deng in the "Electrical and Electronic Training" class and agreed to be the class representative - the dead body last night still irritated him to some extent.Wei Cheng had to join the battlefield in order to survive, he felt that if he worked a little harder, maybe the life left to future generations would be better.

In the afternoon there was a class of "Electrical Engineering and Electronics Training". Teacher Deng happily gave Wei Shuxun a USB flash drive on the spot, which contained today's PPT lecture materials and the key to the electrical engineering laboratory.

Wei Shuxun returned to the dormitory and opened it, and saw that the afternoon class was electronic welding.The first page is the preparation tools and precautions, and the second page is today's homework: Thinking questions: 1. What are the resistance numbers represented by black, brown, red, and green?

2 How to judge the polarity of diodes and electrolytic capacitors?

3 What are the installation steps of the potentiometer?

4 What should be paid attention to when welding diodes?

Wei Shuxun turned to the last few pages, and found that the next steps were just instructions on the installation steps of welding. These must be manually operated and can be put aside, but the theoretical work can be done in advance.I finally discovered some benefits of being a class representative, at least homework can be done in advance.

Halfway through the homework, Wu Feng and the others came in with a basketball in their arms. Seeing Wei Shuxun sitting in front of the computer typing something, they asked with a smile, "Shuxun, you come back to surf the Internet after class, why don't you play with us?"

"I want to write the homework of "Electrical and Electronic Training"." Wei Shuxun replied.

"Huh?" Wu Feng scratched his head in doubt: "Has Mr. Deng assigned any homework?

"Homework in the afternoon." Wei Shuxun kept tapping his hands, and said leisurely, "I'll finish it now while I have time."

In fact, they are all the same homework, and there is no difference between doing it early and late, but I finish it first, and I just watch other people do their homework.As for reading the lecture notes first and then listening to the teacher's explanation, Wei Shuxun would never consider such things as having more solid knowledge and foundation.

Knowing that Wei Shuxun was the class representative of "Electrical and Electronic Training", the three people in the dormitory asked for help.The four went to the material room to apply for tools and components, and distributed them to each workbench according to the prepared materials in the PPT.

"5 resistors, 2 potentiometers, and 8 diodes..." Wu Feng has a carefree personality, and he couldn't stand it after setting up a few workbenches: "Damn, when will this be released? Let everyone do it by themselves It's fine if you don't get it.

"It will be even more chaotic at that time. Things are so small that they are easy to lose." Wei Shuxun adjusted the PPT and walked off the podium: "Let me do these, you put the tools away."

Wu Feng was sent to put tweezers, pliers and other tools, and Wei Shuxun distributed small components one by one.These components are not big, there are hundreds of them in a bag, and they must be distributed strictly according to the quantity in the handout. The work is quite complicated, and Wei Shuxun himself doesn't like it.But he has always been responsible in his work, and he still pressed his impatience and distributed them one by one.

In the afternoon "Electrical and Electronic Training" class, there is still a workbench for each person. Mr. Deng first opened the PPT to explain the precautions, and then briefly talked about the homework, so that everyone can remember to think while making it, so as not to go back and not know how to write, and attract a lot of people. wail.Wu Feng and the three were secretly pleased that they had finished their homework ahead of schedule just like Wei Shuxun.

"Quiet." Teacher Deng knocked on the table: "The homework is a test of your study today and must be written. Next, let's talk about how to bend the component feet. Wei Shuxun will come up and demonstrate."

Wei Shuxun stepped onto the stage and took the electrode components and tweezers from Mr. Deng. Mr. Deng pointed the camera at his hand and said: "The bending length of the component legs should be determined according to the hole spacing of the printed circuit board. When the component legs are bent, A gap of 1-2mm must be left. Shuxun, you use tweezers to clamp the component feet, and gently bend it into a U shape, don’t use too much force, be careful to break it...uh..."

It is so complicated, but in fact, it is to twist and bend the metal wires at both ends of the electrodes with tweezers. Such a simple tool, Wei Shuxun, can be done directly with one bend of hand, so fast that the students under the podium can't see clearly.But there is no need to see clearly, everyone will understand when they see the finished product.

"Teacher, we understand, let's experiment directly!" Someone shouted from the audience.

"It's not that simple!" Mr. Deng seemed to agree with Wei Shuxun, and the following bending of the pins, the L-shaped bending system, was directly called Wei Shuxun's operation demonstration.These basic Wei Shuxun don't need to listen to the teacher's guidance. When Teacher Deng is talking here, he has already done it.

Seeing that the students were getting impatient, Teacher Deng said helplessly: "Okay, from now on, each person will have a workbench and a drawing, and make it by themselves. The number of components has been fixed, and repeated applications are not allowed. Those who pass the production only need to complete the first one-page homework, and unqualified two-page homework."

For PPT homework, the first page is theoretical questions, and the second page is thinking questions. It is for students to think for themselves, and there is no need to write. If they fail now, it is equivalent to doubling the homework. Put it back on the workbench.

Just now, Wei Shuxun saw that it was easy to bend the component legs, just clamp the metal wire with tweezers, and it was OK once twisted, but I didn't expect that it would be so difficult to make it by myself.The metal wire is very thin, and it will be broken with a little force. At the beginning, several students raised their hands to report that the component leg was broken and asked for a new one.

Mr. Deng pushed the glasses slowly: "I said that the number of components has been fixed, and there is no replacement."

This finally made the students honest, and they all began to operate cautiously.

The component drawing this time is a single circuit board soldering, and there are not many components, Wei Shuxun did it very quickly.A girl next to him stretched out his hand to pull Wei Shuxun, with a coquettish tone: "Shuxun, you can't twist the foot of the component for me, I'm afraid it will break."

Wei Shuxun had solder wire in one hand and electric soldering iron in the other. He was not distracted, and said without the love of his classmates: "Do it yourself."

In the middle of the production, something happened again, and Zhong You in the other row suddenly raised his hand and shouted: "Teacher, one of my diodes is missing."

Teacher Deng went over to have a look, and asked, "It was missing from the beginning, and you didn't damage it?"

"No, absolutely not." Zhong You's tone was a little excited: "Teacher, Wei Shuxun must have given me less on purpose. He has conflicts with me, and he wants to avenge himself!"

"It's so noisy." Wei Shuxun unplugged the electric soldering iron, put away the tools before walking over.Let the learning machine scan, and found that one fell off the workbench, picked it up and threw it on the table: "Persecution paranoia?"

"Students, don't always remember that little conflict." Teacher Deng said with a cold face: "Since there are many components, you should do it well."

Wei Shuxun didn't worry about Zhong You at all, he was able to leave early after finishing the production as quickly as possible.After a whole night, he also calmed down a little bit. Anyway, Zhou Quan didn't say anything, so he should pretend he didn't know. Anyway, get the video device back first.

After dialing Zhou Quan's phone and turning off the phone, Wei Shuxun ran directly to Zhou Quan's house, opened the door and found no one there.There is a note on the coffee table in the living room: "I have a task and I can't come back for the time being. I took the watch away. Whenever you want to share your secret with me, you can come and exchange it!"