"Thank you, secretary!"

"Okay, if there is nothing else...... Zhao Dongsheng planned to give an eviction order.

"Secretary, I have one more thing I want to tell you......" Duan Yun obviously had no intention of leaving immediately.

Say. ”

"That's right, I recently studied it with Master Han, and I want to carry out a little simple technical transformation of the old lathe we are using now...... Duan Yun paused, and then said: "In this way, you can improve some work efficiency and quality." ”

Duan Yun deliberately said that his previous comprehensive automation modification of the lathe was an understatement of the small modification, and he also said Han Zhong as well.

He understands that if he directly tells Zhao Dongsheng the truth about the automatic modification of the lathe, then Zhao Dongsheng will definitely not agree, and he will criticize Duan Yun if he doesn't do it.

After all, the lathe is an important corporate asset, once the machine is damaged or scrapped because Zhao Dongsheng agrees to modify and finally fails, even if this is an old machine that is about to be scrapped, Zhao Dongsheng himself has to take responsibility, so not only Zhao Dongsheng, but also any other leaders, including the factory, it is impossible to easily make such a guarantee.

But if Duan Yun said that his lathe automation modification is a small technical improvement, then Zhao Dongsheng will probably not care, after all, many old workers in the factory will also process some special gadgets by themselves for the convenience of work, modify and make simple fixtures and the like, which is a very common thing and is not worth mentioning.

"That's a good thing. Zhao Dongsheng smiled when he heard this, he obviously didn't find that there was a trap in Duan Yun's words, and with his understanding of Han Zhong's character and personality, he didn't believe that he would connive at Duan Yun to do anything unreliable, so he said: "It's a good thing to engage in technological innovation, I fully support you! But you have to learn more and master more theories and techniques in the future, and you can communicate more with your workshop technicians and masters, and you must not waste materials." ”

"I will definitely learn more in the future. Duan Yun was waiting for this sentence, and then nodded again and again.

"It's okay to go back to rest early, it's hard to work the night shift just now. ”

"Then I won't disturb your work. After Duan Yun finished speaking, he got up and left Zhao Dongsheng's office.

Seeing Duan Yun leaving, Zhao Dongsheng's face suddenly sank.

Picking up the application for joining the party written by Duan Yun on the table, Zhao Dongsheng glanced at the paper basket next to him and seemed to feel that something was wrong, and then the drawer next to him was placed at the bottom of a pile of manuscripts, and he shook his head and said to himself:

"Young people nowadays, what kind of mess is going on in their minds every day......"

......

After Duan Yun left the office building, he suddenly felt relaxed.

He doesn't expect the secretary to discover his value right away, but this kind of thing needs to be cultivated a little bit, especially if an ordinary worker wants to have a relationship with the leader, which is not an easy thing in itself.

When he got home from work, Duan Yun ate and slept in the morning as usual, and after lunch, he took the radio brought by his sister to his rental house.

The radios I got today are a little less than the other day, only fourteen.

Although there were still seventy or eighty yuan in the income, Duan Yun also knew that this business would not last long.

At four o'clock in the afternoon, after all the work was finished, I took out the antenna drawings designed last night and made some revisions again.

Subsequently, Duan Yun left the rental house and came to the hardware store located in the factory area.

For less than two yuan, Duan Yun bought an aluminum tube, a few meters of feeder, thin copper wires and a box of small screws.

In addition, Duan Yun also bought some tools to make antennas.

Vices, taper changes, files are all must-haves.

Then there's the hand drill.

Originally, Duan Yun wanted to go to the city to buy it in a department store, but he was worried that he would have to go into the city to repair it once it broke, so he simply bought it directly from the hardware store in the factory area.

The 6A single-phase tandem electric drill produced by HHHT Power Tools Factory sold here is not too expensive, only five yuan and five cents.

With these things in hand, Duan Yun returned to the rental house.

The structure of this antenna modified by Duan Yun is not complicated, and the appearance is similar to the Yagi antenna that is popular in the south.

Duan Yun first cut 6 copper rods with a vise, and made a punch mark on the corresponding position of the aluminum square tube.

Use a Φ3mm drill bit to punch through the square pipe with a bench drill on the 5 holes of the square pipe, so that the copper welding rod can just be inserted into the crossbar.

In order to facilitate adjustment and disassembly, you can drill another hole above the oscillator, weld a nut, and tighten the screw to fix the oscillator.

Then Duan Yun took a few galvanized aluminum sheets, and fixed the oscillators at the front and rear ends with screws, and the entire antenna suddenly became much more beautiful.

The Yagi antenna that Duan Yun made was not just a simple imitation, but a technology that he had improved together with his lecturers and classmates in the laboratory in his previous life.

At that time, Duan Yun and his classmates debugged the spacing and replaced the length of the active oscillator, reflector, and direction driver, so that the electromagnetic parameters of the antenna reached the ideal state.

This is definitely a core technical parameter.

There has been no patent in the past two years, and the domestic patented technology was passed in 1984 and only began to be implemented in 1985.

Therefore, Duan Yun must have his own core technology that is not easy to be imitated.

The first is the appearance design of the antenna, because Duan Yun's improved version of the Yagi antenna has been repeatedly tested and adjusted, so the distance and reflection angle of several oscillators are strict distances and angles, and the position changes slightly, and the ability to receive signals will be greatly reduced.

The other is the antenna amplifier designed by Duan Yun for this kind of antenna.

The so-called antenna amplifier is actually an electronic component used to enhance the received weak TV signal signal and improve the quality of information reception.

If the appearance of the antenna is easy to be copied and imitated, then it will be quite difficult to imitate the antenna amplifier designed by Duan Yun.

In order to prevent 'piracy', Duan Yun decided to adopt some of the practices of his peers in his previous life, that is, to use double-layer circuit boards.

This method is also very simple, that is, after the circuit board is stacked into multiple layers, the real circuit board is glued with 502 and other glues by burying holes, so that the person who wants to copy the circuit board cannot accurately judge the layout of the real circuit board, and if you want to disassemble the multi-layer circuit board, the real circuit board will be seriously damaged.

There is also a short-circuit device installed in the real circuit, once disassembled, it will cause self-destruction, which is also an important means to effectively prevent piracy.

Although the installation of these anti-piracy parts will increase the cost of Duan Yun's antennas, it is obviously necessary to maintain the monopoly of this high-end antenna business!