Hi Except ….
The big steps give you more “thermal shock” on a BT and that slows things down. Bob > On Feb 28, 2016, at 7:28 PM, Richard (Rick) Karlquist <rich...@karlquist.com> > wrote: > > > > On 2/28/2016 7:01 AM, Bob Camp wrote: >> Hi >> >> It’s not an electrical issue as much as a heat issue …. >> >> Before you start, consider that you will be doing something like: >> >> Move trimmer 1 turn CW >> Wait 10 minutes >> read frequency >> Move trimmer 1 turn CW >> wait / read >> Move trimer 1/2 turn CCW >> wait / read >> Move trimmer 1/4 turn CW >> wait / read >> Move trimmer 1/8 turn CCW >> wait / read >> Move trimmer 1/16 turn CW >> wait / read >> Move trimmer 1/32 turn CW >> wait / read >> >> That is indeed an ideal version. You likely will do multiple steps at each >> of the stages rather >> than get it right the first time. The part needs to be warmed up for a few >> days before you >> can get to the 1/32 turn level. You also need a good standard to compare to. >> >> Bob >> > > Instead of that, start with the pot at max temp, and have the counter make > measurements at, say, 1 second intervals as the oven warms up. > You can tell by looking at the plot what the peak frequency is. Now > that you know the peak frequency you are shooting for, it will take > a lot less trial and error to find the oven setting that produces it. > > Rick > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.