Homebrew PCBs

If I remember correctly aluminium wire will 'creep' under load so you 
lose the contact pressure. This is also a problem with solder so don't 
tin your wires if you are using screw terminals or crimps.

Les

Richard Mustakos wrote:
> Dave,
> Where have you been? Don't you know that we use copper plated zinc 
> pennies?  And that eating a copper penny is not considered a hazard, but 
> the zinc coated ones are?  I guess the acids in your stomach either 
> don't dissolve copper, or it requires a lot of copper to be a problem. 
>  Otherwise, lead killed the Roman Empire, but copper will have killed a 
> _bunch_  of modern countries.
> Does anyone know why aluminum is bad for house wiring?  (real question, 
> not a joke)  Is it that aluminum has a greater thermal expansion ratio 
> than copper, and so the connections worked themselves apart?
> Thanks
> Richard
> 
> 
>>But, I'm thinking that here in the US, we use copper pennies and 
>>copper water pipe so we probalby dump more copper into the waste 
>>stream than all the pcb houses put togehter.
>>
>>Dave
>> 
>>
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