Hi all! Allowing a friend to borrow a tbolt. Is it necessary to cool (maintain a certain) baseplate temperature for optimum performance? Currenlty mounted inside an aluminum chassis. It's screwed to an aluminum sheet that covers around 2/3 the base. Thanks, Norm n3ykf

Hi The TBolt is a great unit !! The main source of temperature impact is the DAC / Voltage reference. Since that is a “distributed” circuit, the temperature control also needs to cover more than just the backplate. Bob > On Jul 24, 2017, at 6:37 PM, Norm n3ykf <normanlizeth@gmail.com> wrote: > > Hi all! > > Allowing a friend to borrow a tbolt. > > Is it necessary to cool (maintain a certain) baseplate temperature for > optimum performance? > > Currenlty mounted inside an aluminum chassis. It's screwed to an > aluminum sheet that covers around 2/3 the base. > > Thanks, > > Norm n3ykf > _______________________________________________ > 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.

Interesting discussion. I simply have my TBolt bolted onto an Aluminium rack panel so I could rack it. I wasn't aware there was any special need beyond that? Right? Regards Paul WB8TSL On Mon, Jul 24, 2017 at 8:12 PM, Bob kb8tq <kb8tq@n1k.org> wrote: > Hi > > The TBolt is a great unit !! > > The main source of temperature impact is the DAC / Voltage reference. > Since that is a > “distributed” circuit, the temperature control also needs to cover more > than just the backplate. > > Bob > > > > > On Jul 24, 2017, at 6:37 PM, Norm n3ykf <normanlizeth@gmail.com> wrote: > > > > Hi all! > > > > Allowing a friend to borrow a tbolt. > > > > Is it necessary to cool (maintain a certain) baseplate temperature for > > optimum performance? > > > > Currenlty mounted inside an aluminum chassis. It's screwed to an > > aluminum sheet that covers around 2/3 the base. > > > > Thanks, > > > > Norm n3ykf > > _______________________________________________ > > 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. >

I have bought in a flea market a not working DCF77 receiver module. This unit is a 77.5 kHz receiver with a led clock display and serial ports. I am looking the manual and schematic to try to repair it. Thankyou, Luciano www.timeok.it

Hi It gets back to the term “optimum performance” and the Time Nut bias towards eliminating any source of degradation. Even while locked, temperature does get into the DAC. Blow some air on a unit and watch things move around. It does not go unlocked. It does not exceed any of the specs on it. It does move a bit and you can see the “bump” in a phase plot. Simply blocking drafts is a good first step. Bob > On Jul 24, 2017, at 8:33 PM, paul swed <paulswedb@gmail.com> wrote: > > Interesting discussion. I simply have my TBolt bolted onto an Aluminium > rack panel so I could rack it. I wasn't aware there was any special need > beyond that? Right? > Regards > Paul > WB8TSL > > On Mon, Jul 24, 2017 at 8:12 PM, Bob kb8tq <kb8tq@n1k.org> wrote: > >> Hi >> >> The TBolt is a great unit !! >> >> The main source of temperature impact is the DAC / Voltage reference. >> Since that is a >> “distributed” circuit, the temperature control also needs to cover more >> than just the backplate. >> >> Bob >> >> >> >>> On Jul 24, 2017, at 6:37 PM, Norm n3ykf <normanlizeth@gmail.com> wrote: >>> >>> Hi all! >>> >>> Allowing a friend to borrow a tbolt. >>> >>> Is it necessary to cool (maintain a certain) baseplate temperature for >>> optimum performance? >>> >>> Currenlty mounted inside an aluminum chassis. It's screwed to an >>> aluminum sheet that covers around 2/3 the base. >>> >>> Thanks, >>> >>> Norm n3ykf >>> _______________________________________________ >>> 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.