Re: gEDA-user: Contact reliability

[norwoods <norwoods@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
uses at low voltage and low current are referred to dry circuit.  look 
for a switch rated for dry circuits or use a semiconductor switch.

norwood sisson