[vcf-midatlantic] Fake 7400-series memory

Dave McGuire mcguire at neurotica.com
Thu Aug 24 12:23:52 EDT 2017

On 08/24/2017 11:49 AM, Herb Johnson via vcf-midatlantic wrote:
> Neither chip is very "useful". I suppose someone making a TTL computer
> today would use a 74LS181 and some other 18X chips too. Ebay prices are
> one to a few dollars each. But who can second-guess the next person
> making money through chip fraud? This is what a race to the bottom looks
> like.

  74LS189s sell for a couple of dollars, but the Chinese company
probably paid a couple of dollars for a few THOUSAND of the DTMF
generators.  This economic structure works in China.


Dave McGuire, AK4HZ
New Kensington, PA

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