Hello to all in this forum
I ordered some opa 211 from an american ebay seller and after reading up on these i found some threads about the 627 and some people mentioned that there are fakes around. And to proof it is fake or not they measure the resistance between pin1 and pin5. How much should the resistance be on an opa 211? Which specs i have to look to find out how much the resistance should be?
thanks and regards..