Piggybacking 74LS logic chips to confirm a suspected fault

Chuck Guzis cclist at sydex.com
Fri Dec 25 15:05:11 CST 2015

On 12/25/2015 12:25 PM, tony duell wrote:

> These aren't individual pins, but complete DIL sockets. An example is
> shown in this E-bay listing :
> http://www.ebay.co.uk/itm/20-pieces-New-16-Pin-Cambion-Wire-Wrap-DIP-Sockets-Gold-Pins-/262081127835

Oh, I know that the individual sockets didn't.  Heck, I've probably 
still got some of those old white plastic 0.400" 22 pin ones used for 
2107-type DRAM somewhere.  The "tails" are even tin-plated, not gold. 
Cheapest of the cheap.

No, I was referring to the wirewrap *boards* with individual press-fit 
socket pins, usually on very thick FR4 stock.  You know--*real* 
industrial wire-wrap, not the cheap hobbyist stuff.


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