RADIOTEHNIKA S-30 speakers from old to new


Hi, my name is Artem Denisov. I am a programmer, fond of electronics and all sorts of such interesting things. I read habrakhabr for many years, and now I decided to write an article myself.

This story began in an old, dark and scary basement. In which I discovered the
ancient Soviet columns RADIOTEHNKIKA S-30. Which I got from my grandfather.

It was a pity to throw them away, so I decided to restore them. Make it possible to listen to music from your phone, etc. mn Who cares, welcome under cat.

ATTENTION!!! A lot of photos and videos.

"Drilling for oil?" Do you mean that you need to drill the earth in order to find oil? You are crazy! ”Response to the project of Edwin Drake, the creator of modern oil production, 1859

Many will say:“ why do these nonsense things? You can simply buy a new column. ” Indeed, perhaps such a scenario would be preferable for the majority. However, if you still decide, you will have an amazing opportunity to make just such a piece of iron, which requires your soul and heart.

So let's go.

1 - disassembly

Of the two columns, only one was working. And that's how she looked.

DIY wooden bluetooth speaker

DIY wooden bluetooth speaker

DIY wooden bluetooth speaker

You will not believe. Capacitors on the crossover (frequency divider) have retained their capacity. But these columns are over 30 years old. Honestly! I was drinking and checking.

DIY wooden bluetooth speaker

2 - design

All dismantled. The speakers were able to successfully extract. The crossover, surprisingly, was still alive. What to do next?

Benjamin Franklin said: “The best investment is an investment in knowledge.” Therefore, it was necessary to visit the library, but to make a couple of good investments.

It turns out that calculating the speaker in the right way is not at all so easy. Therefore, it was decided to create a new one, with minimal deviations from the old one.

diy wooden bluetooth speaker

And to keep the version of the speaker system design with the phase equipment in the form of a pipe.

diy wooden bluetooth speaker

3 - spare parts

It is necessary to build in the amplifier amplifier. There are many different boards and features. You can separately buy an amplifier, bluetooth module, power supply, and so on. mn However, I decided to use a ready-made solution. My choice fell on the next amplifier.

diy wooden bluetooth speaker

This thing solves many problems right away. It contains a bluetooth module, supports the ability to listen to music from a flash drive, from the TV. And it has a universal power supply 110/220 volts. And even contains, in a set, a remote control panel.

And so that life was fun and joyful, I also ordered a beautiful retro sound level indicator.

diy wooden bluetooth speaker

And a red glowing power button.

diy wooden bluetooth speaker

Well, a couple of pieces of wood were cheap to buy at a local store.

diy wooden bluetooth speaker

4 - assembly

I assume that you are already tired of reading texts and watching pictures. Therefore, I suggest you see the video about how the process of manufacturing the column. As they say - better to see once than hear a hundred times.

If you have any questions, I will be glad to answer.

I wish you a good day, brilliant ideas, and always only good music!

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