[TowerTalk] ground plates (was DXE Patents)

[Jim Lux]

On 2/10/12 8:23 AM, Ken wrote:
>
> On Feb 8, 2012, at 12:11 PM, Frank wrote:
>
>> That is an interesting observation.  Also interesting is the fact that
>> the lug is copper.  Unless the plate is also copper this whole setup is
>> doomed to failure from galvanic action.
>
>
> I have often wondered about that.   Is stainless exempt from dissimilar metal galvanic action?
>
> Why not just use copper (with brass machine screws, nuts and washers)?   Are there any drawbacks to that?


Copper is expensive and difficult to machine?

That said, you can get nice copper bus bars with holes predrilled and 
set screws, fairly inexpensively (considering they're made of copper).

I use the aluminum ones, myself. If they work in circuit breaker panels 
for decades, I figure they'll outlast the antenna or me.  Just keep it 
dry-ish.