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found this on youtube on how to test new final


I wish there were a simple way to test them to know if they're legitimate. Several years back I bought what was left of a closed down cb shop. In the parts bins were about 100 or more mitsubishi 1969 transistors. They look legit and have no reason to believe they aren't but I don't know it for sure. So far they've just been in a drawer and could be worth something!
 
Simple way? Yeah. The width of the package.

A real Mitsu 1969 is skinnier than the standard TO-220 metal-tab transistor package. Can't remember the exact dimensions.

But it's visibly thinner than every TO-220 part. Easy to see in the thumbnail pic above. The skinny gray one on the left is the real part.

A fake won't be.

73
 

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  • @ heartbreaker3473:
    Hello gentlemen and Ladies. I have the dreaded RCI-2990 receive issue where my radio gets distorted when people get close to my location. I found the C90 Capacitor, but I can not for the life of me find the C89 capacitor. Can or does anyone have a picture of the exact location of C89 ? Thank you in advance, Wes
  • @ AudioShockwav:
    Wes, it's better if you start a thread on the main forum, more people are going to see your question.
  • @ heartbreaker3473:
    Okay, sorry, will put in a forum
  • @ heartbreaker3473:
    I put it in the general disscution help area and started a new thread. Thank you for letting me know.