I agree that thats not really an effective heat sink. On Sat, Feb 27, 2010 at 6:12 PM, Bob Camp <li...@rtty.us> wrote:
> Hi > > 1mm is pretty thin for a heat sink made of steel. You might consider an > aluminum plate around 4 mm thick and the length and width of the case to act > as a heat spreader. > > The LPRO probably already has the tape on the bottom of it. The tape may be > in fine shape. If it's not, scrape off what remains and use a normal thermal > grease (heat sink compound) between the bottom of the LPRO and the heat > spreader. You also should fill the gap between the heat spreader and the > steel case with something. I would use some sort of thermaly conductive > epoxy. You don't need the silver loaded stuff. Ceramic loaded should be ok. > > Bob > > > On Feb 27, 2010, at 5:30 PM, Paul Boven wrote: > > > Dear time-nuts, > > > > I've just bought a used LPRO-101 which should get a permanent home inside > an instrument rack. I've also found a very nice 1U high metal case, and a > fitting 24V 1U power supply - leaving plenty of room for a distribution amp > and a microcontroller to log things like lamp and Xtal voltage. > > > > The rackmount enclosure is 1U high, and seems to be made of 1mm thick > galvanized steel. Would that make a good enough baseplate for the LPRO? > Would I need to do anything to improve the thermal contact between the > rubidium oscillator and the baseplate, and if so, any recommendations on > what to use there? The LPRO "User's guide and integration guidelines" > recommend 2degC/W thermal resistance (for up to 50degC ambient), and using > some special thermal tape that will probably be very hard to get at these > days. If any of you has already put something like this together, I'd be > very interested in your suggestions. > > > > Regards, Paul Boven - PE1NUT > > > > _______________________________________________ > > 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. > _______________________________________________ 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.