Chapter 5 Borrowing Books Again

"La la la, la la la, I'm a little newspaper seller..."

On the way home, Lin Hong hummed happily to sell newspaper songs.

In his hand, it was the magazine of the same period of China Radio, but this book is not only half a remnant, but an intact one. Although it is a little old, it is very complete.

At this moment, Lin Hong was still shocked by what he had just seen. He didn't expect that under the black cloth, there was a wooden cabinet about three meters wide and about two meters high, and the cabinets were full of books!

This is the first time that Lin Hong has seen so many books, and each of them is very thick and large.

Lin Hong's memory is very good. He read it all the way and remembered the names of most of the books, including "Basic Tutorial of Electromagnetic Field", "Short-wave Communication Circuit Design", "Principle of High Frequency Circuit", "Principle of Communication" and so on.

In addition to a few literary works, most of them are books about radio, circuit design and wireless communication, including Chinese and foreign. There are a wide variety of books, which is simply dazzling Lin Hong.

Lin Hong did not know the value of these books. Although he was very shocked that Lao Xu had so many parameters, he did not think much about it. Before he left, he summoned up the courage and asked if he could borrow the magazine called China Radio in the canvas greenhouse.

Old Xu agreed very generously, and he also took Lin Hong to another room, where he saw several large boxes of magazines and newspapers. Old Xu found the full version exactly the same as the broken magazine from one of the boxes.

At this time, Lin Hong knew that the real good things had been sorted out and collected at home by Lao Xu, and those outside were all waste to be disposed of.

When passing by the small shop in the village again, Lin Hong still resisted the ** of sour plum powder and big bubble gum, and was not willing to spend the "huge money" of 50 cents in his hand. In his mind, he had another plan, and he decided to reserve the money first for a rainy day.

As soon as he got home, Lin Hong couldn't wait to open China Radio magazine and read it. The first thing he read was Radio History, which was incomplete before.

From the end of the 19th century to the present, it has a history of more than 100 years. Among them, radio has gone through a process from nothing to the present, and the relevant technology has been quite perfect.

This article is just a purely introductory article and does not involve any technical knowledge, but it has aroused Lin Hong's great interest in radio.

Early the next morning, he came to Lao Xu's house early, which surprised Lao Xu, who had just got up to do morning exercises.

"Grandpa Xu, I'll return the book."

Lin Hong came straight to the point and explained his intention.

"Oh? Have you finished reading it so soon?"

"Hmm!" Lin Hong nodded seriously. He hesitated for a while, and finally summoned up the courage to ask, "Grandpa Xu, I still want to borrow a book, okay?"

Old Xu is just asking casually. Although there are not many pages in that magazine, it is a little difficult for an adult with relevant knowledge to read it seriously. In his opinion, what Lin Hong said after reading it is just a turning over. For children of his age, only pictures are their favorite content.

At that time, Lao Xu didn't think that magazine was suitable for Lin Hong. At that time, he recommended several wonderful villain books to Lin Hong, which were not common at ordinary times, but the stubborn Lin Hong did not change his mind. He repeatedly insisted on borrowing the magazine, so he agreed to lend it to him and told him not The page is broken.

So, it can be said that Lin Hong came to return the magazine so early today. According to his idea, Lin Hong must have turned a few pages yesterday and then completely lost interest.

Old Xu took over the magazine handed to him by Lin Hong and saw that the magazine was complete, even without new creases. It can be seen that Lin Hong still paid great attention to its protection.

He said with a smile, "Grandpa told you yesterday that you can't understand this magazine at all now, but you don't listen to it. Now you regret it."

Lin Hong was slightly stunned: "Grandpa, I don't regret it. This book is so good that I have finished reading it.

"Have you finished reading it? Well, it's very good." Old Xu said so verbally, but he didn't care. Then he said, "What book do you want to borrow this time? Why don't I lend you the Biography of Yue Fei? The content of the villain book is very wonderful. You must like it.

Lin Hong shook his head: "Grandpa, I don't want a villain book. The name of the book I want to borrow is "The Principles of Simple Radio."

"Conclined Radio Principle?"

Old Xu was really stunned. If an adult told him to borrow such a professional book, he might still be able to accept it, but it felt very strange to hear it from an eight-year-old child.

"Lin Hong, why do you want to borrow this book?" Old Xu asked curiously.

"I saw an article in this book that details the production principle of 'ore radio'. I want to make an 'ore radio' by myself. It is said that if you want to understand the basic principles of ore radio, it is best to learn the book Concise Radio Principles first.

Lin Hong's answer surprised Lao Xu. Yesterday, he glanced at the magazine a little, and there was indeed a tutorial on the production of "ore radio". In this way, the child is confirmed to have read the magazine.

"Maybe the child happened to see the article, which just aroused his interest for a while."

Old Xu thought in his heart, after all, this kind of self-made content is also very attractive to children.

"Good boy, that's great!"

Old Xu praised Lin Hong first, and then continued, "Since you want to read this book, I'll find it for you. Although the ore radio seems to be relatively simple, it is also difficult to really succeed. Lin Hong, if you have anything you don't understand during the production process, you can ask Grandpa at any time. If there are any components missing, you can come to me directly. Although there are few complete things here, there is never a lack of those bits and pieces.

"Thank you, grandpa!"

Lin Hong was overjoyed to hear this. Originally, he was embarrassed to talk to Lao Xu. After all, although he could find some materials for making ore radios by himself, he still lacked some important components.

Lin Hong's gratitude to Lao Xu's heart is really beyond words. He doesn't know how to speak much, but just buried this gratitude deeply in his heart.

Lin Hong followed Lao Xu to his bedroom again.

As the black cloth opened, facing a cabinet of books neatly arranged, although he was mentally prepared, he still felt very shocked.

"Conclined Radio Principle..."

Old Xu read the name of the book, put on his reading glasses, and began to look for it in the cabinet.

Although he knew that he did collect this book, he didn't know exactly where to put it. After all, there were too many books. Although he had already numbered the compartments of the cabinet in order like the bookshelf in the library, he did not take another time to systematically sort out and number it, but According to the general classification, it is just to put the same type of books together.

Old Xu walked from beginning to end, but couldn't find it.

At this time, Lin Hong's voice suddenly came to my ear:

"486..."

The voice was a little vague. Lao Xu turned his head to look at him doubtfully and saw that he was on the right side of his workbench, curiously observing his radio station, and did not follow him at all.

He held the presbyopia glasses and continued to look for the book.

"I found it!"

Old Xu saw that this book was located next to a book called "Principles and Design of Transistor Receiver Circuits". Because the book was too thick, it just blocked the "Simple Radio Principles" slightly, so that he ignored it after searching here several times.

Old Xu pulled it out of the crowded books. The pages have been seriously yellow, which shows that the book has been around for some years.

"Thank you, grandpa!"

In the yard, after thanking him politely again, Lin Hong went home happily with the book.

"This child is really polite." Looking at Lin Hong, who was far away, Mr. Xu said with a smile. It's a pity that the child's head was injured at the beginning, so that..."

The reason why Lao Xu is so kind to Lin Hong is that on the one hand, he is out of sympathy, and on the other hand, he also has a granddaughter who is about the same age as Lin Hong, but for some reason, he can't enjoy the joy of family for the time being.

Back to his room, he covered his books with black cloth again. The main reason for this was that some guests sometimes came to his house. Although they saw that there was nothing to do, he always needed to explain. Over time, he simply covered up these books to save others from being alarmed. Little weird.

But the next moment, he pulled the black cloth away again, because his mind suddenly remembered the sentence that Lin Hong had just muttered:

"486..."

He remembered that the horizontal and vertical rows of his bookshelf grid code were designed in numerical order, and he wrote two-digit numbers on it. For example, in the first row and fourth column, the number of the grid was "14".

He rediscovered the location of the book just now, that is, next to the large part of the book "Principle and Design of Transistor Receiver Circuit", and then was very shocked to find that the number of the grid was clearly "48", and the sixth book of this grid was actually the one that Lin Hong had just borrowed.

"It's impossible. Maybe I heard it wrong."

Lao Xu shook his head and said to himself.