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Topics - amdatlon

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Electronic circuits / Schema modification?
« on: February 09, 2018, 02:55:31 PM »
Hi,
Forgive my bad English.
I have this circuit for the welding machine, inverter.
with which transistor can I change FZT649 to work again in a circuit?
Can I replace it with 2T9139 = BD139?
The scheme works on Full Bridge, 30Khz.
This is not a resonance.

THANK YOU!



http://www.e-kak.info/forum/download/file.php?id=8670&mode=view

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