At that time, the waste recycling station collected almost everything, ordinary waste paper, scrap iron, scrap copper, waste plastic, old clothes, old shoes, broken bottles, waste glass, and other things like heads, batteries, toothpaste skins, etc. When Hong Tao was a child, he remembered that his parents would roll the used toothpaste tubes into a small roll and keep them, and when they had saved more, they would send them to the scrap yard with other waste products to exchange for a few steels. At that time, toothpaste cartridges were made of aluminum skin, and later generations of toothpaste cartridges were all plastic.

The reason why Hong Tao had to come to the scrap yard was not for the broken copper and iron, but for the waste paper. In his later life, he heard a few collectors talk about how many of them started from scrap yards when they first started collecting, so he wanted to try it too. Anyway, this thing doesn't cost much, it's okay to collect and collect, maybe you can catch up with such a piece and a half, and you won't be rich in the future, which is called hitting a child on a rainy day, and being idle is also idle.

If you want to ask Hong Tao if he understands the knowledge of antique collection, he knows a fart, he can't even tell the porcelain made in the last week and the porcelain made in the Western Zhou Dynasty. But that's not a problem, there's no porcelain to buy here, it's mainly waste books and waste paper and the like, he just needs to find those things that look like ancient paintings and calligraphy, even if he finds the wrong one, it doesn't matter, there will always be a chance to distinguish the real from the fake when he puts it at home, it's better than turning it all into pulp.

In addition to these paintings and calligraphy, Hong Tao also aimed at another thing, which was semiconductor parts. Sometimes there are people in the buying station who come to sell worn-out radios, the shells are waste plastic, and the circuit boards and components inside are considered sundries, and they are not worth a few dollars.

In Hong Tao's eyes, this thing is very scarce, although these radios are all broken, some have been smashed, but most of the components in them can still be used. Hong Tao doesn't know antique calligraphy and painting, but he still has some foundation in radio, he liked radio when he was in junior high school, and he also learned this thing with a teacher friend of his father. Although the level is very average, it's no problem to save a rifle regenerative four-tube radio, and when I got a 6-tube three-band radio when I was most successful, I could receive the radio of Taiwan and the voice of the United States at night.

As mentioned earlier, the household appliances of this era were radios and flashlights, among which listening to the radio was the only entertainment for a family. The old people use it to listen to the model play, the parents use it to listen to the news, the older brothers and sisters use it to listen to the commentary, and the children use it to listen to Sun Jingxiu's grandfather: the little speaker has started broadcasting!

Compared with bicycles and sewing machines, the supply of watches and radios is slightly more abundant. Because the first two things belong to the necessities of life, the latter two things do not have and will not affect life, at most they are boring. However, it is only slightly sufficient, and it is not up to the Cheng dù who wants to buy it, and it also needs industrial rolls.

If Hong Tao can save his own radio to sell, it should also be a profitable business, and the profit margin is even higher than that of a bicycle, but Hong Tao really doesn't have this ability. The most difficult place is the accessories, at this time there is no Zhongguancun, there is no Ping'an Li electronic accessories market, ordinary capacitors, resistors can also be bought, like some amplification circuits used in the triode is difficult to buy, especially silicon transistors, very, very difficult to find.

The transistor is the core of the transistor radio, which has been replaced by large-scale integrated circuits in later generations, but electrical appliances before the 9o era, whether it is a radio or a television, have to rely on it to rectify, filter, and amplify. At that time, China's electronics industry was not very good, and most of the tubes used were germanium transistors, which had large leakage, poor thermal stability, and small magnification, and the circuit noise made with it was more obvious, and generally speaking, it was not as easy to use as silicon tubes.

But it's not useless, its low-voltage performance is very good, and the sound is relatively thick when used in low-amplification circuits, until the 9O years, and that kind of burners, who deliberately went to find germanium tubes to do low-amplification, silicon tubes to do medium and high-amplification, specifically for its special electronic sound. However, this can only be heard by the ears of burners, and the sound of the amplification circuit made by ordinary people is the same, at most, they feel that the silicon tube is relatively loud.

Hong Tao doesn't know how to play germanium tubes, he was already in the world of silicon tubes when he learned radio, because the on-voltage of silicon tubes is o.65V, and the on-voltage of germanium tubes is o.3V, so they are generally not mixed, because you have to add additional voltage regulator circuits, which is very troublesome.

But Hong Tao has no place to buy such a suitable silicon tube now, he can only find it in these dilapidated radios, and he can do it himself, the higher the dù, the more interesting it is, everything depends on buying, and when he assembles it, he can't embody the spirit of dIy at all, and he can't learn any technology, and he can't learn any experience.

In addition to playing, Hong Tao also wants to make a radio with better performance for his own use, listen to the enemy station or something, not to mention those political propaganda, at least he can listen to some foreign songs, which is more comfortable than listening to model dramas all day long.

For this purpose, he also made some preparations for himself. If you want to play radio, you have to have a guy who can take advantage of it, and the electric soldering iron must be inseparable, this thing he has found a few in the scrap iron pile, although they are all broken, but they can still make up a complete one, and then buy a new soldering iron core to replace it, and you can use it.

Solder, rosin, and small tweezers are easy to find, and my parents' units have this thing, and you can use it for a long time if you take a little bit back. Needle-nose pliers, steel files, not very easy to get, you have to buy a new one, the most troublesome is the multimeter, without this instrument, many originals can not detect whether it is good or bad, and the finished circuit can not be tested. Hong Tao couldn't make this thing himself, he didn't have the technology, nor the accurate measuring instrument, so he had to buy it.

The mechanical and electrical counter of the North Xinqiao shopping mall is sold, Hong Tao has seen it several times and is not willing to do it, a mF3o multimeter produced by Shanghai Fourth Instrument Factory costs more than 5o yuan, and Hong Tao has saved money for a bicycle, and the salary of a worker for more than a month. Hong Tao couldn't afford the money, the main thing was that he couldn't explain it to his parents when he took it home, and he couldn't say that he borrowed a new multimeter, and the fool didn't believe it.

You can't sell a new watch, and you can't do it without a watch, so what should you do? Another way is to buy an old watch. Where can I buy it? Just south of the North Sin Bridge shopping mall, walk 1oo meters after the intersection, and there is a consignment store on the east side of the road, which sells everything. Why is it called a consignment shop? It's kind of like a pawnshop, it's rare in the 21st century, but there were quite a few of them before the '90s.

As the name suggests, none of the goods in the store belong to the store, but are entrusted by others to be sold here. As long as there are formal procedures, basically anything can be sold here, from a complete set of furniture to a small earring. So how do you consign it? There are probably two ways.

The first is that the store pays for the goods you bring first, and then you don't care how much they sell.

The second way is that you and the store staff jointly evaluate the product, and finally set a price, and then put it in the store to sell, and when it is sold, you have to pay a certain fee to the store, and if you can't sell it, you will negotiate a new selling price.

Generally, the things sold here are relatively expensive or large, otherwise it will not be enough to pay for the handling fee after selling for half a day, and no one will make this mess with you. Hong Tao turned around several times in front of the electromechanical counter of Beixinqiao Shopping Mall, but in the end he was still reluctant to pay, so he took Jin Yue, a follower, pushed the small bamboo car, and ran to the entrusted store again to try his luck.

Why is it a stroke of luck? Because there are often some goods of comparative value for sale here, probably because a certain family is in a hurry to need money, they have to sell the valuable things at home, and they do not know their actual value, so they also take them out and sell them. But this situation doesn't happen every day, and you're not alone in coming here to Taobao, so whether you can catch up depends on your fate.

Hong Tao will basically come here every few days to take a turn, it turns out that there is no money in his pocket, blind turnaround, and I have really seen a few good goods, such as a 4o annual production of five matchheads (Rolex) men's watches, all-steel watch chain, maintenance is not bad, only sold for 7o yuan. Because Hong Tao was too young and had no money in his pocket, he naturally didn't dare to let the salesman take it out to show him, so he could only lie on the glass counter and take a look, but he was bought by a middle-aged man after a while.

These days, he has enough bullets in his pocket, but he can't touch the good things, and he only sees 2 fur coats that are good, but he doesn't understand fur and doesn't dare to start lightly. Even if he understands, he doesn't dare to buy it, he can't explain it to his parents when he buys it, and there is no one at home to wear it, so you can't let your mother wear a fur coat and pedal a bicycle to work, it's not a joke. Besides, this kind of thing is also difficult to keep, afraid of moisture, afraid of dryness, and afraid of insects, there is no particularly big house, there is a cloakroom, it is a waste to buy, and after a few years, it will become a bare board without hair, and a broken skin and rotten jacket.

"Just eat ice cream in the car! Brother will come out when he goes in to buy something, don't move!" Hong Tao parked the small bamboo cart at the door of the consignment store, took Jin Yue in and let her sit inside, and then found a small brick, put the wheel of the car in his eyes, and then entered the consignment store.

There are not many people in there today, and there are only two of them in Hong Tao, and the other is an old man, carrying a black schoolbag whose skin is about to fall off, and he is blindly touching one counter after another with his hands behind his back, and he is also a master who comes to Taobao. The two salesmen in the store saw someone coming in, raised half of their eyelids and glanced at Hong Tao, and then continued to talk about their days.

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