Electronic Designer (EKON-02 vs Expert)

As we talked with a colleague about electronic designers, it turned out that Econ-02 was gathering dust on his shelves at home. In my childhood, there was no such happiness, and I really wanted my son to have some kind of analogue of Econ-02.The Soviet-style electronic designer was developed by the All-Russian Research Institute of Electrostandard; this happiness cost 14 rubles of Soviet money. I was very interested in the prospect of at least doing something similar on the model. The radio components are fixed on the plane, conventional wiring is used for the connection, the contacts of the radio parts inside the case are inserted into the springs, thus using the springs all the contacts are brought to the surface. I must say that the springs are quite dense, the coils touch each other, if the spring is stretched and a wire is inserted between the coils, the spring will tightly clamp the wire, there will be a fairly stable connection between the radio parts without soldering.Resistors, capacitors, diodes, transistors can be bought at the store. And some components can be done with your own hands, for example, a button or a coil. At first I thought it would be difficult to get a photoresistor, but it turned out to be wrong. To do it yourself is certainly good, but if you buy in a store it is much better. A search on the Internet didn’t give much, of course I found electronic designers in online stores, but I didn’t like them, besides the price was high. The presence of the Soviet designer econ in the workplace for two weeks did not pass by the attention of colleagues, someone remembered their happy childhood and this particular designer, someone with childish delight was happy with the sounds of a siren from the circuit just assembled on the designer, but most importantly they gave me a tip where a similar constructor is sold in my city. Unlike the econ, which is designed for children of high school age, an electronic designer "Expert" for children from 5 to 55 years old, the Chinese are kidding. It is made in China under the patronage of a Russian company, ordinary business. It was a little frustrating that the three parts are a black box, i.e. what is not clear inside is some kind of microcircuit for sounds. Although it would be difficult to interest a five-year-old son to make a chip that plays Happy birthday to you, in principle, he will grow up to be interested in what's inside.Do not count for advertising, but my five-year plan was happy when he and I collected a simulator of sounds from star wars yesterday. UPD - transferred to the blog Iron nostalgia