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568 BLYC power transistor question?

RichardHartman

Active Member
Feb 7, 2019
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I have a 568 BLYC transistor pictured below. I am unable to find any information or cross reference on this. Can anyone help? Its out of a Boomer RX-100

Thanks
 

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Unfortunately it would be closer to the also obsolete MRF454A. This is a stud mount part and there are no substitutes manufactured today.

I just checked online stock and B&D Enterprises, has NOS Motorola MRF454A transistors from 1985, for $36 each. That's a good deal for this hard to find part. Replace both at the same time to avoid balancing issues. Actual matched pairs may not be available.
 
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