Re: gEDA-user: Contact reliability

[Bert Douglas <bertd@xxxxxxxxxxxxx>]

Karel Kulhavy wrote:

> On Wed, Jan 19, 2005 at 01:01:51PM -0600, Bert Douglas wrote:
>
> > The way that you guarrantee contact reliability is by forcing current to 
> > flow, every time the contact points are moved.  This causes microscopic 
> > welds.
>
>
> But when I have 10Mhz broadband signals with 700mVpp amplitude I probably
> can't weld them together. Or is there some trick even for this situation?
>
> Cl

Somehow you have to force a DC current of perhaps a few amperes.  This 
only needs to be done for a short period of time.  Less than 1 second.