[time-nuts] Temperature stability for Thunderbolt: results
CORNACCHIA
corcsal at yahoo.ca
Sat Mar 17 18:49:32 UTC 2018
Hello Everyone I need help on on calibrating Time base oscillators for counters with Lady Heather's Version 5 Can any one help with the setup for making measurements.
Thank You
On Wednesday, January 26, 2011, 5:56:16 a.m. EST, Achim Vollhardt <avollhar at physik.uzh.ch> wrote:
Luciano,
the fan controller setting can be seen here in near-realtime:
http://gulp.physik.uzh.ch/heather/
I let it autotune once by 'ka4' and left it like that.. works fine.
For photos, I would have to open the box again.. which would seriously
disturb the temperature :) I will do internal photos next time, but you
might guess from the outside photos, what is inside.
http://gulp.physik.uzh.ch/heather/pics/
I used Warren's simple transistor circuit he provided in an earlier post
to control the fan from the RS232 pin 4. As I wanted to keep the RS232
outside interface free from additional cables, I opened the TBolt and
wired pin 4 with a dedicated wire to the outside world.
73s Achim, DH2VA
_______________________________________________
time-nuts mailing list -- time-nuts at febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.
More information about the Time-nuts_lists.febo.com
mailing list