If it’s any help, I recall having to change a trimmer capacitor to a series cap. instead of parallel to pull a crystal which had aged out of limits. Extra parallel capacity will pull it down, series will move it up. Eventually of course the crystal will run out of steam and stop oscillation.
Rgds
Dave.. G4DAX?
On Sat, 12 Nov 2022 at 01:45, Robert Holsti <
kh2br.w6@...> wrote:
You are correct !!? 40 meter crystal is 4 khz off and cant get it any closer to 21.5 mhz
