At noon, I had a delicious meal of stir-fry, which was cooked by the three canteens by Silly Zhu. Although it is still potatoes and cabbage, it is made with meat oil as a base and some oil residue is added, and the color, flavor and flavor are all kind.

Li Guocheng is also very strange, why does the stupid pillar who is not stupid like La Bangtao so much, is it really like what the majority of predecessors said, there is a fragment of liking pretty widows engraved in the genes.

In the afternoon, he drove a few people out of the first laboratory and told them not to disturb themselves, and then sank into his mind, re-modeled the radio buffer input, three-stage amplification, and buffer output 5 parts of the circuit, and reproduced 7 transistors, 28 electrons, and 14 capacitors on a small wafer.

In order to verify the circuit, the size of the replica wafer is 1*3cm, and the space is sufficient.

After starting the vacuum furnace, 40 minutes later, 3 chips may be the first chip with commercial value in China.

I used telekinesis to observe the thermal diffusion effect, and found that one chip was not ideal, so I put it aside.

The chip with a simple package appears on the test bench. Have you ever seen some black dog skin plaster on some electronic postcards, that is, simple encapsulated chips.

Disassemble the radio, disconnect the corresponding circuit, and connect the chip directly to the flying wire. Turn on the switch, no matter how you adjust the table, it is a rustling noise. Using the DC voltage level of the multimeter, it was found that the signal of the last stage was completely saturated, and the voltage was stable at 5V when it appeared on the multimeter.

Replace another chip and the result is the same.

For the next week, Li Guocheng lived a life of retreat, constantly adjusting parameters and experimenting. Sleepy and sleepy, hungry to eat. Each chip and corresponding parameters are recorded and placed in different positions on the bench.

By the time I saw Zhao Ting again, 18 days had passed. Li Guocheng's image is like a beggar, unkempt, if it weren't for the exercises, no one would want to get close to the smell on his body.

Zhao Ting was called by Wu Liankui, he was frightened by Li Guocheng's state, he ignored anyone, locked himself in the laboratory, and could only see him when he went to the toilet.

When others talked to him, it was as if they could not hear him, and his mouth was babbling, and his eyes were straight.

Wu Liankui, who couldn't stand it, found Old Man Zhao and contacted Zhao Ting.

"Let's go home and rest for the day, shall we?" Looking at Li Guocheng, who had changed greatly, Zhao Ting's heart ached, and her tone was extremely gentle.

Seeing Zhao Ting, Li Guocheng seemed to have just returned to reality, "Okay, daughter-in-law, go home", with the appearance, the smiling Li Guocheng is more like a second fool.

Take a bath, sleep, sleep, and sleep, and the next morning, Li Guocheng, who woke up, looked at Zhao Ting in his arms distressedly, and couldn't help but bury his head in her hair and sniff deeply.

Zhao Ting, who was being noisy, wrinkled her nose, turned around and fell asleep again.

Li Guocheng, who got up, played a set of five poultry plays in the yard, sweated slightly, and after entering the house to wash, he sat down at the table.

"Aunt Liu, it's been a long time since I've eaten your cooking", Li Guocheng sent it to him.

"Talk nonsense, isn't it just ten days!" knew that Li Guocheng was polite, but Aunt Liu still smiled toothlessly.

"The ancients said: If you don't eat for a day, it's like every three autumns", Li Guocheng began to stink poverty.

"You just have a poor mouth", Aunt Liu scolded with a smile.

"Zhao Ting was tired last night, you let her sleep more", Li Guocheng did not shy away from it, and directly instructed Aunt Liu.

"Go to work with peace of mind, I will take care of your daughter-in-law", Aunt Liu sent Li Guocheng out of the door like a fly.

Along the way, Li Guocheng suddenly found that spring had arrived, the branches spit out green shoots, the grass was already a few centimeters high, and the breezy morning made Li Guocheng feel relaxed and happy. Listening to the chirping of birds, it feels as if the ancient city is recovering.

Immersed in the beautiful morning, the mood seemed to fly into the air, until he saw the students surrounded by the intersection, Li Guocheng realized that the sky seemed to be covered with gray and simple fog.

I got out of the car and pushed away, and when I passed by, I shouted a few slogans and went smoothly to the laboratory.

When he opened the door to the first experiment, it was the same as yesterday, and no one dared to touch his things.

Li Guocheng opened all the windows and doors, sat in the middle of the laboratory, closed his eyes and meditated.

"Brother Li, please drink tea", I don't know how long it took, a low voice woke up Li Guocheng.

When I looked up, I saw Zhang Zhijing holding her teacup in both hands, standing quietly beside her, with a gentle smile on her face.

"Lao Li, it's time to recover, if it doesn't work, I'll rest for a few days and come back", Wu Liankui took the lead, and several acquaintances from the laboratory walked in.

"Yes, work is important, but body is more important," Master Yi said with a worried face.

Others chimed in.

Li Guocheng was deeply moved, he didn't do anything, just a little too devoted, which made everyone so worried.

In fact, he himself is not conscious, and everyone else knows that the spiritual pillar of the laboratory is Li Guocheng, as long as he is fine, the laboratory will get better and better, and the results will be more and more.

"Don't worry, I slept for a while, and now I'm back to life with full blood," he said, sitting, flexing his muscles.

"Xiao Li, the days are long, don't be in a hurry", Wang Gong stepped forward and patted Li Guocheng's shoulder.

Li Guocheng nodded, and promised that after not doing so in the future, everyone left one after another.

Li Guocheng walked to the sample, read all the records, and classified and analyzed them in his mind. Suddenly slapping his head, he used to drill a dead end, always trying to control the magnification of each level.

However, the characteristic of the transistor is that the current amplification factor is different for each one, and the difference sometimes reaches an order of magnitude. Why do you have to burn all the resistors to the chip, pull out a resistor for each stage, put it outside the chip, and directly adjust the resistance value of this resistor, can't you control the magnification of each stage?

Just think about it, and 1 hour later, there was a wonderful sound of music on the radio.

Li Guocheng did a backflip and waved his arms constantly, "yes, yes,。。。 ”。

Although the next work is not easy, it is only a matter of time, that is, to compress the chip area and reduce the cost.

With the support of telekinesis, this work was only used for three days, and the chip was compressed to the size of only a soybean, and when it was finally packaged, it was packaged as DIP-16 according to the habits of later generations.

Looking at the familiar chip in his hand, Li Guocheng was full of achievements.

After appreciating for a while, Li Guocheng redesigned the circuit board, 3D modeling, layout, engraving the substrate, dispensing, soldering, wiring, testing, a set of processes are very familiar, put the circuit board into the original radio box, connect the buttons.

Install the battery, turn on the switch, adjust the stage, and a Peking Opera clip of "Outwitting Tiger Mountain" came out.

Holding the radio, he came to Wu Liankui's office all the way.

Thank you all for your support! Ask for recommendations! Ask for a commuter pass!

(End of chapter)