View Single Post
  #1   Report Post  
Mark D. Zacharias
 
Posts: n/a
Default Counterfeit semiconductors again

A new low.

Harman Kardon HK-3370, original output transistors (never been previously
changed) were Chinese fakes. They didn't even bother to make the lettering,
logo, etc look the same or show the same hFe group. Busted them open, the
NPN's and PNP's even had different internals, die size was different, one
had RTV over the die, the other not. The numbers were 2SC3856 and 2SA1492.
I've dealt with many original Sanken devices - these weren't.

Good job as usual, Harman. Of course if Harman were a legitimate
manufacturer, instead of outsourcing everything for more than the past 25
years, things like this might not happen, eh?


Mark Z.