"Brother, come and talk. After chatting for a while, Cao Dong pulled Duan Yun down into the office.

"I've worked hard for you these past few days. After entering the house, Duan Yun said to Cao Dong with a smile.

"What's the hard work, if you have money to earn, it's not hard!" Cao Dong pouted, then took out a paper bag from his arms, handed it to Duan Yun and said: "Brother, we have sold eleven speakers in the past few days, throw away the brothers' sales share, and the rest of the money is here, there is a record in the account book, you can count ...... against it."

"Sell so much?" Duan Yun touched the thickness of the paper bag and said with a look of surprise.

"Basically, all the subwoofers sold are trumpets, and those customers saw the photos of their sister-in-law and the speakers, and their eyes were ...... straight" Cao Dong smiled, and then said: "Cui Lin and the others are now more and more neat, insisting that this is a speaker endorsed by a movie star, and some people really believe it......"

"Hahaha!" Duan Yun laughed when he heard this, and after a while, he restrained his smile and said: "Don't talk nonsense about sister-in-law and sister-in-law in the future, Cheng Qingyan and I are classmates, it's okay for our brothers to joke, but don't talk nonsense in front of outsiders, understand?"

"This understands!" Cao Dong squeezed his eyes at Duan Yun and said, "By the way, Brother Duan, Gao Lei came back the day before yesterday, and after coming to such a workshop and knowing that you had gone abroad, he left a box of things......

"Where is the thing?" Duan Yun's eyes lit up when he heard this, and he asked repeatedly.

"Here's it. Cao Dong walked to the desk, opened the drawer, took out a plastic box from it, and handed it to Duan Yun.

"Smack. After Duan Yun took the box and opened it, all kinds of chips in the box were revealed!

For a moment, Duan Yun's heartbeat suddenly accelerated, and his face showed excitement.

Duan Yun didn't expect Gao Lei to really help him buy so many chips, and judging from the appearance of these chips, most of them are still relatively new, and there is no obvious damage!

For Duan Yun, obtaining these chips is of great significance.

Although the functions of these chips are too far behind the functions and performance of later generations of chips, but in this year, they are all more practical and advanced integrated circuit components, with these things, Duan Yun can make a lot of powerful black technology!

For Duan Yun, these chips have a very important value for Duan Yun, one is to modify the gear hobbing machine, using these 6502 microprocessor chips, Duan Yun can modify the milling machine into a gear hobbing machine with a certain numerical control function, and the other is that the preamplifier that can be used to make audio and video, voltage comparators, and other electronic systems is also a very common part of daily electronic products in later generations, if Duan Yun can buy this kind of chip, the audio equipment made will be much more powerful than the current effect.

"Brother, what's the use of this thing?" Seeing Duan Yun's excited face, Cao Dong asked curiously.

"With this thing, our speakers will not be afraid of others copying them in the future, and the function will be more powerful. Duan Yun grabbed the chip and glanced at the logo on it, and asked Cao Dong, "What about Gao Lei? Have you seen him these days?"

"Gao Lei has bought another batch of goods this time, riding the nephew you gave him may sell goods in other factories, right?" Cao Dong pondered for a while, and then said: "But sometimes he will come over to drink with his brothers at night." ”

"The next time he comes back, if I don't have a class, you can come to my house and call me, I have something to talk to him!" Duan Yun said.

"Okay!" Cao Dong nodded.

"By the way, one more thing. Duan Yun thought for a moment, and then said: "It's cold during this time, give the brothers two sets of military coats, and install an electric stove in the house, usually boil water for heating or something, just pay attention to safety and don't catch fire, you usually bother to stare at the ......."

"Okay, I'll buy it later. ”

"Also, it's almost New Year's Day, you buy some apples, fish, eggs, whatever, you have to buy the best! Send it before New Year's Day, and I will reimburse you for this money. Duan Yun said.

"Brother, in fact, I don't feel like I need to send these things, and now my brothers earn a lot, and I don't miss that thing......"

"There are some things you don't understand. Duan Yun smiled when he heard this, and said: "You have to understand, Cui Lin Leizi and they are working in the factory without pay and working with us, and the benefits in the factory are gone...... A few of them do earn a lot in our stall, but if they can still get something to get home, they will also have face in front of their parents and brothers, although things don't cost a few dollars, but they will have a surprise, and after a long time, they will have a sense of belonging to our workshop, and they will cherish our workshop more in the future, do you understand what I say?"

Although Cao Dong has a flexible mind and is reliable, he is still young after all, and he is still lacking in personal experience.

"I see, I'm going to go to the market more often these days to see what good fruits are available. Cao Dong said repeatedly.

"Then you're busy. Duan Yun patted him on the shoulder, took the money and the box of chips, and left the workshop.

After returning home, Duan Yun sat down in front of the desk, picked up the box of chips and looked at it carefully.

Duan Yun took out the previously designed circuit drawings from the drawer, there were speakers, there were no chips before, they could only be put in the cabinet to eat ashes, but now they have a place to use.

The upgrade and improvement of the speaker can also be postponed, and what Duan Yun wants to do most now is the modification of the gear hobbing machine with CNC function.

Of course, Duan Yun could not make such advanced CNC machine tools and high processing accuracy in later generations, but he could still modify a gear hobbing machine that was far more efficient than the current equipment.

Although there is a full set of design drawings, Duan Yun has not been tested, and it is not yet possible to finally determine whether this set of equipment can be successful, as for the other components of the modified equipment that can be processed in the factory, only the CNC circuit board has not been made because there is no channel to obtain the chip before.

And once Duan Yun successfully modifies the CNC gear hobbing machine, then he has a trump card in the gear factory, after all, the machine was designed by him, and others can't figure out the production method of the CNC circuit of this gear hobbing machine, and they can't get the chip, so only Duan Yun can play with this machine.

Now that he has the chip, Duan Yun can finally move on to the next step.

After putting the whole box of chips in the drawer, Duan Yun left the house with the design drawings of the speaker and the CNC circuit board.

At present, Duan Yun's place to make the circuit board is in the cave on the side of the Ma military camp, so he needs to send the drawings over, and then his two apprentices will quickly make the circuit board, and the chip part will be soldered by Duan Yun himself......