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Vyacheslav Golovanov2011-08-13 15:17:21
Electronics
Vyacheslav Golovanov, 2011-08-13 15:17:21

Lamp devices?

I was amazed at the external beauty of lamp technology, receivers, etc. I mean, not the beauty of the case, but the lamps themselves.
Are there parts for sale now, from which they can be assembled?
If I don’t understand this and didn’t hold a soldering iron in my hands, but I want to figure it out, is it worth starting with this?

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5 answer(s)
S
slang, 2011-08-13
@slang

They are sold and equipment is assembled on them. Because so far nothing better in sound (in terms of sound) has been invented by tube amplifying cascades. Prices are skyrocketing, of course.

M
mambet, 2011-08-13
@mambet

If we talk about the actual lamps, then:

  1. There are a lot of Soviet stocks
  2. The Chinese have launched production, of course, since there is a demand
  3. The Svetlana plant still produces a number of lamps
  4. Surely there are other manufacturers, I listed only those that I know about - and I'm just interested

The rest of the element base, in general, is quite modern, it is purchased at any store. There are no problems with transformers either - either wind it yourself, or order production, or take some Soviet TAN (anode-filament transformer) to “play around”.
And don't forget about safety. Anode voltage can kill much more effectively than a standard 220 volt outlet.

A
alex_kh, 2011-08-15
@alex_kh

Lamps are generally a good tool for starting research, they are easy to understand and use, but you will have to solve the following issues: -
power supply to the cathode, its stabilization and getting rid of noise;
-high supply voltage of the anode (depends on the emissivity of the cathode);
- matching with the load resistance (for lamps it is high), so a matching transformer is required;
- the characteristics of the matching transformer depend on the frequency of the device;
-separating capacitors are all for high voltage (due to the anode);
- coordination of characteristics of lamps (they need a stand to check the characteristics), making changes to the circuit for each lamp individually;
Just for practice, you can pick up the lamps (I advise you to look for lamps from military devices - they have a more accurate tolerance), but the best alternative is field-effect transistors, which, in terms of characteristics, are like lamp devices. This statement is not true if you need a modulator for a powerful RF electromagnetic emitter (they didn’t come up with anything better than lamps here).

O
opifex, 2011-08-17
@opifex

If there is little or no experience with a soldering iron and related tools at all, but you want to try your hand, it’s better to start with something simpler . By the way, it looks just as impressive!

O
orloffkirill, 2011-08-15
@orloffkirill

My dad assembled a tube amp based on the Laconic Lunchbox II ( photo ). In principle, dad swung to the point that he soldered anything, but this was not needed here. But to exclude cod (it happens in the evenings due to different voltages in the network), I put an old Soviet autotrans at the entrance.
The assembly there is simple, but for the very beginning, especially if the author has never held a soldering iron in his hands, this can be said to be a huge starting point into the world of lamps.

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