I'm thinking the 2-10 or 2-14pF ones.
On Tue, Aug 11, 2009 at 4:01 PM, tahrens301<[email protected]> wrote: > - > Hi DCflux, > > Tried the bandpass + notches & didn't change much. > > On changing to the BpBr, any idea how much capacitance > is needed? I have a fistfull of those Johanson caps. > > Also, a buddy of mine has a Sinclair Q202G that I'm > thinking about also. Will pick it up tomorrow & see if > it is any better. > > Thanks, > > Tim W5FN > > > > > >> If that doesn't work you might try converting them to BpBr. This would >> be done by adding a very high quality piston trimmer such as a >> johansen cap to the coupling loop, in series with the grounded end. Or >> a BNC jack going to a piece of coax that can be trimmed to form a >> gimmic capacitor. >> >> I like to salvage the capacitor from surplus Mastr 2 ICOMs that are >> EC. But those have to be soldered in and I'm not sure what material DB >> cans use on the rotatable whosis. >> >> The inner cavity jumpers should be 1/4 wavelength electrically, so you >> have to calculate velocity factor of your cables. >> > > > > ------------------------------------ > > > > Yahoo! Groups Links > > > >
