Chapter 281: The rare big baby in the world!

The day when the fleet goes south is getting closer.

Anyone with a little bit of foresight can realize how lucrative this trip to

the south is, and there is also court escort. There is no need to worry about

security. It is a godsend. Therefore, labor shortages are rare in all major

shipping companies. You can see some notices about recruiting sailors

everywhere in Chang'an City. As long as you are well watered and not seasick,

then hurry up and sign up! The shipowner will first give you a generous

relocation fee. When you come back from Southern Trade, the wages you will pay

will be enough for your family for twenty years!

The workshop is even more enthusiastic. Since some of the precision parts of

the compass were polished by a few masters before, the efficiency was very

low. Seeing that more and more people are asking for the compass outside,

after Fu Bo asked Li Zexuan for instructions, he decided to organize young

craftsmen to learn from the masters. Technology, who can learn, rewards five

pennies at once on the spot.

Under the reward, there must be a brave man. A large number of smart and

dexterous people emerged from the young craftsmen. The precision parts they

polished are no worse than those of the masters.

In this way, with a steady stream of new forces joining in, coupled with the

advanced assembly line production model, the output of the compass has

continued to skyrocket day by day.

On the first day, Qiquge supplied fifty compasses, and they were all sold out

in less than a quarter of an hour.

On the second day, Qiquge supplied 300 compasses, and it still looted them in

less than half an hour.

On the third day, Qiquge supplied 500 compasses, but it was finally not

robbed. The market for compasses has begun to be saturated. After all, there

are more than 1,000 merchant ships going south, and not every merchant ship

owner is like Wang Ren. The watch is like a local tyrant, and every ship must

be equipped with a compass.

Upon seeing this, Sun Huaiyuan hurried to give feedback to the workshop. Fubo

got the news and immediately transferred more than half of the people from the

Compass production echelon to produce the carriage. According to Li Zexuan's

previous plan, it was time to launch the carriage. Sold.

…………………

Three days, fleeting.

The people outside are preparing for the vigorous southward movement. Deep in

the workshop, Zuifengxuan and Li Zexuan are also busy.

There is already a sign that this guy is going to get into trouble. In these

three days, more than 90% of the time, he stayed in the "laboratory" (cough,

sleeping there), and experienced the hardships of the past few days. Fighting

hard, Li Zexuan really made a treasure, and it was still a rare treasure in

the world, but his current image was a bit stunned.

"Haha, two telegraph machines have finally been completed!"

Compared to the previous image of the handsome son of Yushu Linfeng, Li

Zexuan's hair is now a little messy and his eye sockets are sunken. This is a

clear sign of staying up late. At this moment, he looked at the pile of

devices on the table, laughing like a mad, crazy look.

That's right, the communication tool Li Zexuan wants to do is a telegraph, and

it is also a wireless telegraph. The principle of the radio is very simple,

the core part is the lc oscillation circuit, the oscillation circuit of the

frequency selection network is composed of an inductor l and a capacitor c,

which is used to generate a high-frequency sine wave signal.

The radiation power of the lc oscillation circuit is proportional to the

fourth power of the oscillation frequency. To make the lc oscillation circuit

radiate strong enough electromagnetic waves, the oscillation frequency must be

increased and the circuit has an open form.

Although the principle is very simple, but in this era, there are no

electronic components that Li Zexuan can use. It is really difficult to make.

There are many technical difficulties, such as the signal modulation of the

transceiver, the production of the buzzer, etc. Fortunately, these

difficulties were overcome by Li Zexuan, who had been in seclusion for three

days. After all the hardships, he finally stumbled and made two wireless

telegraphs.

But unfortunately, there is one difficulty he can't overcome at present, and

that is the problem of power amplification, which is also the biggest

technical difficulty that the electronics industry must break through in this

era-triode.

The transistor is one of the basic semiconductor components. It has the

function of current amplification and is the core component of electronic

circuits. Without the transistor, there would be no integrated circuits, and

there would be no electronic products in modern society.

In fact, the lc oscillating circuit needs an amplifying element, that is, a

triode. Of course, you can also use a digital lc such as an integrated

operational amplifier. Using this amplifying element, through various signal

feedback methods, the oscillating signal that is constantly consumed is

feedback amplified. , And finally output a signal with a relatively stable

amplitude and frequency, so that the radio signal can be transmitted farther.

Li Zexuan understands these principles, but what's the point of understanding?

He couldn't build a triode now, so he had to bite the bullet and try to make a

wireless telegraph first, because he had a trace of luck in his heart, that

is, in the ancient times, when there was no electricity, the spatial spectrum

was very clean and there was almost no interference. With only a few watts of

RF power, it can travel all over the world.

The earliest wireless telegraphs did not use triodes. The transmission

distance of UU Kanshu www.uukanshu.com at that time was 250 meters, but there

was already electricity in that era, and the space spectrum was not clean, and

there would be electromagnetic interference.

During the War of Liberation, * in Yan'an and Lin (Biao) in Harbin, they were

together for more than 2,000 kilometers. There was no relay station in the

middle. They all communicated directly with the radio. At that time, the

radiated power of the telegraph was only a few watts, so it could travel that

far. If this is left in modern society, it will definitely not work.

"Master, don't move, Xiao Xi is combing your hair!"

Li Zexuan laughed madly there, but Xiao Xi behind was unhappy. These days, Li

Zexuan locked himself in the "laboratory" and couldn't help scratching his

head whenever he encountered a problem. Ancient men are not like modern boys

with short hair. They all have long hair, so his hair has been messy recently.

In order to maintain a good image for his young master, Xiao Xi spends a long

time combing Li Zexuan's hair every day.

"Haha, no need to comb, no need to comb! Come on, Xiao Xi, try my latest

invention, Master!"

Only then did Li Zexuan notice that there was someone behind him. He turned

around, pinching Xiao Xi's shoulder and exclaimed excitedly.

These days he is often in a trance doing things, many times he has been in a

state of forgetting everything. If Xiao Xi was not here to take care of him,

it is estimated that he was either starved to death or sloppy to death by

himself. In the end, although he could also do the radio telegraph. Come out,

but the final situation will definitely be countless times worse than it is

now.

"Master~! Wait a moment, let me comb your hair first."

Xiao Xi is not surprised. In addition to taking care of Li Zexuan's daily

life, she has also helped Li Zexuan do various experiments. She failed many

times in the middle. Now she is not as interested in doing experiments as

before.

"Okay! That's all right, Xiao Xi, hurry up!"

Li Zexuan had no choice but to compromise.

(End of this chapter)