No, The Invar is only used on the rod of the duplexer because the of the galvinised steel being a tempreture nightmare and moving the plunger up and down. Besides these cans would have so little Q factor that the tempreture gyrations would not be of concern due to the width of the notch.
On 5/17/05, Ken Arck <[EMAIL PROTECTED]> wrote: > At 11:10 AM 5/17/2005 -0700, you wrote: > > >I'm working on a theroretical design that uses 1 1/4" copper watter > >pipe and 3/8" solid copper grounding rod, which should cost approx > >$20-$25 per cavity, but I haven't built any thing in the real world > >yet. > > <---Apparently it will only be used in controlled environments? Copper > isn't the most thermally stable material (which is why G-d invented Invar <g>) > > Ken > ------------------------------------------------------------------------------ > President and CTO - Arcom Communications > Makers of state-of-the-art repeater controllers and accessories. > http://www.ah6le.net/arcom/index.html > Come see us at Dayton 2005! We'll be In the Repeater Builder Tent > in spaces 707-710 in the Flea Market area! > We now offer complete Kenwood TKR repeater packages! > AH6LE/R - IRLP Node 3000 > http://www.irlp.net > > > Yahoo! Groups Links > > > > > Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
