Kapanadze and other FE discussion

[AlienGrey]

R2
that transformer is far too big a simple Fero device with low power 500 volt is a good idea charging up a RC
network and then either an SCR driving the grenade type device could well  do it  or 2 x 240 volt neon
spark gap over voltage devices could suffice for the pulse but the freq would be important,

Also that noise is like a relay vibrating (look at Nelson's old vid's, sounds just like it ) to start up oscillations.

R2 you need to know what your doing, It's true what they say, 'little knowledge is dangerous'.

[a.king21]

I got it from a person who has such a transformer. Unfortunately, there is no photo of the transformer itself.

Are you referring to the transformer at 26.39 in my post with the 2 transformers?

[r2fpl]

Are you referring to the transformer at 26.39 in my post with the 2 transformers?

Yes !

[forest]

Interesting how both low voltage and AC voltage are required. Thats what I see from screenshots of this video, maybe in round box there is kind of rotary interrupted ?

[Sergh]

any Western equivalents to these specifications?

When studying the datasheets of powerful bipolar transistors, it is necessary to pay attention to the gigantic base current necessary for their operation.  As well as a relatively long switching time.

Since there is no normal datasheet on the TKxxx transistors, hypothetical analogues is:

BUF460AV
https://www.ebay.com/sch/i.html?_nkw=BUF460AV
https://media.digikey.com/pdf/Data%20Sheets/ST%20Microelectronics%20PDFS/BUF460AV.pdf

BUV298V
https://www.ebay.com/sch/i.html?_nkw=BUV298V
https://media.digikey.com/pdf/Data%20Sheets/ST%20Microelectronics%20PDFS/BUV298V.pdf

BUX348
https://www.ebay.com/sch/i.html?_nkw=BUX348
https://media.digikey.com/pdf/Data%20Sheets/ST%20Microelectronics%20PDFS/BUX348.pdf

If you need powerful or high-frequency transistors, you can ask the specialists who service medical equipment. For example, magnetic resonance imaging devices. These devices become obsolete, they are thrown into the garbage heaps and disposed of somehow. There are a lot of interesting things.

Or where we can obtain these components today?

If you need these medieval transistors, I guess I can arrange with the sellers to send the order to the US.
Prices on their site are about $10 a piece, but for selling one transistor they are unlikely to want to mess around. Shipping will cost a lot more.
But I suppose that they are well suited only in museum.
They are called TK not because "Tariel Kapanadze"  but because the "Transistor Kremnieviy"(RUS) - silicon transistor.

Sergh:
The pump only makes noise when empty, right? see the video when they turn on more bulbs then you hear this sound again. Only a transformer under load can do this.

I already wrote. Why does the "transformer" stop very loudly buzzing, but the bulbs after that keep glowing in silence?

On your transformer circuit, the current is too optimistic.  With a current in the primary winding of 2 amperes 220 volts, such a transformer will smoke after a couple of minutes at full load.

The Soviet transformer TS180 with a power of 180 watts has a primary winding with a thicker wire, 0.8 mm in diameter.

https://www.tehnari.ru/attachments/f119/90005d1343665611-180.jpg

And even if we allow a current of 2 amperes 220 volts, then this is only about 400 watts. It will not be enough for 2 kilowatt light bulbs.

Tariel talks in this video about microprocessor control system in this device. His "Arduino" in a shiny metal box open the valve and start again the pump to compensate  pressure drop due increase load.
The transformer is only for powering the device from the output. Look at the first photo. 2 pairs of wires are connected to the transformer on the primary winding.
https://overunity.com/17735/wesleys-kapanadze-and-other-fe-discussion-forum/msg577176/#msg577176