On Wed, Jan 19, 2005 at 01:36:21PM -0600, Bert Douglas wrote: > 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.
And what is the voltage at which even the thickest layer of oxides is guaranteed to break through? Cl<
