[sdiy] MOS 6581 SID Chip for Commodore 64/128... sale ending tonight.

[Needham, Alan]

I thought the majority of 'fake' ICs were just something with the right number of pins, dressed up to look good.
I remember reading of someone with an 'opto isolator' which could be seen to have excess pins filed flat to the case!

A fab plant reject would be a blessing by comparison - even if it is only partially functional.

-----Original Message-----
From: synth-diy-bounces at dropmix.xs4all.nl [mailto:synth-diy-bounces at dropmix.xs4all.nl] On Behalf Of Roman Sowa
Sent: 13 March 2015 10:05
To: synth-diy at dropmix.xs4all.nl
Subject: Re: [sdiy] MOS 6581 SID Chip for Commodore 64/128... sale ending tonight.

But where do they get those rejects from? This chip is out of production for maybe 20 years, I have no idea how long exactly. And I assume all rejects back then went straight to trash. It would be insane if they stored them that long. And how they would know that in 20 years this chip will be such a good deal. By collecting all rejects ever produced, from every fab, since 1970's?

Guy Taylor - that's what I was talking about initially. This whole fake manufacturing seems such a bad idea from business point of view when we talk about chip like SID. OTOH I'm totally aware of fake opamps, logic circuits or transistors, this is mass product with lot of possibilities of replacement by inferior part.

Romans

W dniu 2015-03-12 o 23:50, Frank James pisze:
> Seems to me that the chips are not really "fake" but are in fact 
> re-branded rejects for the most part. I don't think  there is any real 
> manufacturing taking place here. This all can be done at a kitchen 
> table if you wanted to, making this VERY profitable for the person / 
> persons involved. How much can old defective batches of these things 
> cost? Not much I bet and then you sell them as new for a premium.
>
> On 3/12/2015 5:08 PM, Guy Taylor wrote:
>> I have been reading this thread and even though I believe the faking 
>> to be possible (not just SID chips but chips in general), I find the 
>> logistics of it mind boggling!
>>
>> The fakers must have armies of researchers investigating every 
>> electronics 'scene' on the planet.
>> Their setup costs must be large, making the dies and doing the runs.
>> Accountants to do the cost benefit analysis, etc. they sound so much 
>> more organised than half the places I've worked!
>> I can understand faking Intel CPUs cause of the mass market but for 
>> them to be coming down to the level of music diy obscure chips means 
>> they must be super organised.. They wouldn't be doing it if they were 
>> losing money after all...
>>
>> Maybe it sounds silly but perhaps as their tech improves they could 
>> actually produce chips that no one else can or is willing to anymore 
>> like the old CEM ones? Surely those older designs would be easier to 
>> make today even with dodgy fakers equipment?
>> Hopefully some fakers subscribe to this list and are reading. I would 
>> pay for fakes that sounded just like the originals but for a fraction 
>> of their current prices ;) That would be pretty cool...

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