"Oops, didn't you take the power out of it?"

Suddenly, two craftsmen who were doing a silk pressure test jumped up.

"What's wrong?"

"Just now, a big voltage hit me."

"No, I've removed the power supply from these two copper sheets, you see, isn't this the clamp that just supplied the power!"

As a result, the capacitor was developed in the casual experiment of these two people.

"Master, you said, why does Lang Jun use silver wire instead of iron wire for the most important part of this wire."

"This, we can test to prove, ammeter, voltmeter, two sections are the same, ah, no, use three sections, a silver wire, a copper wire, a piece of iron wire, to be longer, used for testing, you see, this silver wire, the current is the largest, copper wire, medium, iron wire, the lowest."

"So, master, what about other metals, such as tungsten wire?"

Thus, resistors also appeared.

Immediately afterwards, the combination of resistors and capacitors also appeared, well, the first real electronic circuit appeared, however, this rectifier, which was proposed by Yang Qiao, ore rectification.

"Shengshang, here, Lang Jun has prepared three sets of main stations, one of which goes in one direction, that is to say, if there is a foreign enemy, or if there is an unexpected situation, as long as there is a line, this main station can command all the signals outside."

Well, in the case of technicians, it's the signal, not the command of all the teams, all the stuff.

"Holy Lord, also, each set of each set of stations has a set of spare, and once there is a problem, it will be immediately transferred to the backup main station for use."

Spare equipment, naturally needed, especially this primary product, the quality is relatively poor, although it has been done the best, but after all, it is a primary product, even if it is defective, it can be gradually found in long-term use.

At this time, this phone has gone from the primary zero type to the five type at this time, or called the point five product, well, the primary zero type, the primary point five, if it is a real upgrade, it is a promotion point.

At this time, the phone has mastered the primary call function, that is to say, the sound is loud, it will not be affected by the surrounding environment, and it will affect listening to the other party, that is, this speech, some distortion, now, it is not a matter of paying attention to the quality of the voice.

This phone has just been put into practice, Yang Qiao did not install it on the railway, but first installed the main station for Li Erlai, well, the main station of the Imperial City, in fact, the real main station, is not here, here, just the command of the main station, connecting some important personnel.

"Where is the kid's line, and is it also connected to your main station?"

Well, there are more main stations, naturally, Yang Qiao will also have a main station, this, although it is called the main station, it is just an internal main station, externally, there is only one line to contact, and there are many internally, such as, the eldest lady's room, the second lady's room, Luan'er yard, Bao'er yard or something, and there is also a connection to the main station of the science and technology city, the science and technology city, and an internal main station, here, just like Li Er's imperial city main station, there are also three lines leading to the Yang family compound, some take the railway, some go underground, and some take the mysterious route, well, It is also impossible to command when it is to prevent emergencies, naturally, there is a fourth line, that is, the railway line, this is a separate line, but whether it is in the Yang family or in Li Er's imperial city, it will also be taken over, this, usually not used, will only be used in emergencies.

"Back to the saint, no, this is through our second lady."

Well, Yang Qiao just didn't want to talk to Li Er directly, so the signal was through Li Lian's courtyard, that is to say, Li Lian's courtyard had two lines, or rather, two telephones, one was internal to his own family, and the other was also internal to his own family, but this own family refers to the royal family, that is to say, what is the matter, Li Lian, or a relay messenger.

"Holy Lord, the second lady's phone has been connected, do you want to talk to the second lady?"

"Who is it, who is it?"

Uh, well, this call, also

There should be a fixed way to say hello.,It's not the same call.,How should you say hello.,Hey.,It doesn't seem like it's easy to explain.。

"Is it the eldest mother, I am the father?"

Uh, okay, it's such an embarrassing title, I don't have the title of princess, I really don't know how to call it, so Li Er came to a folk title, auntie.

"Father, father, something."

Well, Li Lian was relatively cold in front of Li Er, so Li Er was happier if he could say a few more words.

"You're okay, it's okay, come to the palace to see your mother."

This can be regarded as a compensation for Li Er, Li Lian's mother-in-law, Li Er authorized her to call her mother-in-law.

"Okay, it's okay, my daughter is going to hang up."

"Uh, okay, hang up, hang up!"

It's so embarrassing Li Er, why don't you give Li Lian's mother a title, and she has always been a palace maid, well, it seems that it's not that she doesn't give it, but Li Lian's mother doesn't want the title, especially after marrying Li Lian to Yang Qiao, this mother's waist is also straightened, I just don't want the title, I'm just a palace maid.

Well, a palace maid actually has her own separate small courtyard, and there are several high-level palace maids to wait, which is so unreasonable.

"Huhuhaha, who is looking for the old man, uh, it's the saint, the saint, this signal is very good, the saint's voice is very clear,......"

"This old horseman, knowingly asked."

Li Er shook his head helplessly, the first thing to connect was naturally some old ministers, and they all went out from this imperial city, and they were all Li Er's special line main station, well, in fact, there was also a main station, that is the real main station, that is to say, these ministers all have two telephones, one is connected to the public main station, and the other is Li Er's main station or military main station.

In short, Yang Qiao's design for this thing is more complicated, and the goal is one, to keep the signal smooth at all times and not delay things.

"Li Ji, this is your phone, specifically to the imperial city, you can talk to the saint directly, I don't know, forget it, don't say it, hello, hello, it's already through, Li Ji, do you want to talk to the saint, don't, then hang up."

Li Ji, he is still guarding the city gate, and, next to the city gate, there is still a small courtyard where his family lives, well, but this courtyard is too crowded, well, Li Ji is rich, but unfortunately, Li Er just stuffed him here.

Poor baby, this is Yang Qiao's arrival, one of the most affected ministers, well, it is a bad influence, well, although it is from the ninth grade, but Li Er still thinks about him from time to time, which makes him very speechless.

"Telephone, telephone, Li Zhi, Li Zhi, Holy Lord, Holy Lord!"

Li Ji was lying on a recliner, looking at the phone on the wall helplessly, muttering in his mouth, he may recover, but it's okay to recover, it should be on Li Zhi, Li Er, don't think about it, it's very taboo on him, but what, if you abolish this person, you are a little reluctant, when the time comes, let Li Zhi come and see it.

Could it be that this is the legendary one left for his son?

However, Li Er still thought wrong, this is left for his son, this kind of person will not have any gratitude, but there is no chance, so, well, Yang Qiao once thought that it was possible that the empress was abolished by himself, but he was helped up again, uh, the sky is not destined to be?

"Lang Jun, Lang Jun, is it Lang Jun, I'm here for the Science and Technology City Guards, I'm the head of the guards, recently I found a strange thing, there are more hunting people on the mountains near here, well, they don't look like hunting, they seem to have been watching our Science and Technology City, Lang Jun, look."

At this time, not only Li Er was installing the telephone main station, but Yang Qiao was also installing the internal main station.

"Hello, Lian, I'm my husband, well, I'll give you the phone number of the head of the guard of the Science and Technology City, what about you, ask us, who is thinking about us again, let them withdraw quickly, otherwise, you're welcome."

Li Lian, well, also has the identity of the news director.