24 Aug
2017
24 Aug
'17
12:23 p.m.
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 -- Dave McGuire, AK4HZ New Kensington, PA