> On 2018-12-29, at 19:47, Francesco Messineo <francesco.messineo@gmail.com> wrote: > > when I write "counterfeit" I mean really different parts, not > "cleaned" pulls or something similar that can work in place of the > original part. I understand. Just to me they are all counterfeit. I can't be sure whether the part is actually what the painted markings make it claim to be. If I get a 6502 that is marked "MOS", I'd like to know that this is actually the "MOS" 6502 without running lengthy tests just to find out if it is "compatible enough". I also would not have anything against buying pulls, provided they are honestly sold as pulls (even cleaned ones) and not sanded / painted-over to sell as NOS. > In the case I've cited, the received mosfets had > different pinout (D-G swapped) and very different characteristics > also, gate capacitance was 20-30 times the original one, so turn-on > and off times were way off. Channel on-resistance also was > different... so unusable in place of the originals (even if one > dreamed of adapting the pinout on a 30 MHz amplifier...). > I wouldn't mean testing my luck on 40-years-old NOS parts, but if > they're something different with just a part number added on the case, > then there's no point in risking. I was lucky so far not to get those "completely counterfeit" ones but even in case of fake NOS stuff I immediately request either full or partial (in case of stuff that most probably is what it claims to be, just not unused) refund. I think only once I didn't It took me too long to check what actually came.. -- SD! - https://e4aws.silverdr.com/Received on 2018-12-29 21:01:01
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