wrote:

===============

** You talking about the the dreaded " black leg corrosion" problem ?
TO92s and the like with silver plated leads.

Silver sulphide would form on the plating, travel into the device and eat the chip.

Always Jap stuff like Marantz.


Yep. I think Chuck one post up identified the number.

** See:

https://www.oneonetwo.com/2013/07/vi...8-hitachi.html

That looks *horribly " familiar....


..... Phil