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???
09/30/08 18:26
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#158691 - Alternative use of faulty components
Responding to: ???'s previous message
Are you sure that he deliberately used faulty components to get products to repair?

What I know is that he regularly bought and used partially faulty components in partial mode to get a cheaper product.

For example: Normal DRAM chips scales in a factor four, i.e. 16kbit, 64kbit, 256kbit, ...

The 48kB Spectrum used faulty 64kbit chips as 32kbit memories, i.e. the 48kB where implemented with 8 16kbit chips and 8 64kbit chips. This was not bad ethics but actually quite clever - the alternative would have been to throw away all 64kbit chips that didn't pass the full tests.

List of 15 messages in thread
TopicAuthorDate
needs un-pic-ing            01/01/70 00:00      
   Off-the-shelf? Well, maybe ...            01/01/70 00:00      
      Own PCB + switches            01/01/70 00:00      
         I reckon            01/01/70 00:00      
      New RPN calculator            01/01/70 00:00      
   Not first though            01/01/70 00:00      
      Casio            01/01/70 00:00      
      Caveats            01/01/70 00:00      
         Sinclair Black Watch            01/01/70 00:00      
            Sinclair            01/01/70 00:00      
               Alternative use of faulty components            01/01/70 00:00      
                  Wounded Chips            01/01/70 00:00      
                     Silicon has not always been cheap            01/01/70 00:00      
                  pre-spectrum            01/01/70 00:00      
         scientific DIY watch            01/01/70 00:00      

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