i am wondering about this design.
How it works?
Can you give a hint

 

i am wondering about this design.
How it works?
Can you give a hint

Unfortunately, one of your pictures cannot be seen? I guess - it was the schematic.

 

A hardware picture tells very little about how a circuit operates.

 

Should be very simple to reverse engineer a circuit such as that with so few components.
Max.

 

yes. but I have not it really have. it is only image.
I want to know the similar circuit or topology

 

No schematic, no idea.

ak

 

Judging by the apparent symmetry I'd guess the two tabbed transistors provide a push-pull oscillator drive arrangement for the primary of the bigger transformer. The smaller 'transformer' may be a just a choke.

 

got any more pictures of different angles ,and the track side view.....

 

It probably uses this topology (below) but without the snubbers (.01 uf capacitors and 22 ohm resistors) and probably without the output rectifiers and filter.

One transistor will be on until the base drive transformer saturates then it will turn off, which in turn turns on the other transistor until the base drive transformer saturates in the opposite direction.