
Hi Tekko,
I always thought the role of the angry old man is mine!
Today I found my master.





Anyway, true. Ebay is a high risk source for semiconductors.
Still, I bought a bunch of LM4562 on ebay and measured step response (config for step response: non inverting gain = 4) and noise (gain=1000) and offset (gain = 1000) in direct comparison vs my samples which I directly ordered from TI.
==> Identical noise and step response. Slightly worse offset with the ebay types, but easily in spec. Seems like this ebay purchase was not counterfeit.
@Ken
Wishing you good luck.
You will need it with the MosFets and also regarding the likelihood that not only the MosFets might be blown, but also other components.