Jeremy I will speculate the noise simply was tolerated. At the time these would have been a pretty big to do. It was top line HP after all. Most likely other fans in the divider chains, receivers, scopes competed for attention. But that was a bit before my time. Regards Paul WB8TSL
On Fri, Jan 5, 2018 at 6:43 PM, Jeremy Nichols <jn6...@gmail.com> wrote: > Thank you for the inputs. (I wonder what the original users of this thing > did in 1960?) To quiet mine, I purchased a small rack cabinet enclosure, > just big enough for a single 4U instrument, and mounted the 113AR inside > with all the remaining space stuffed with Finerglas® house insulation. That > has taken the edge off of the noise, making it almost tolerable. The next > step is a layer of automotive sound system butyl rubber insulation on the > 113AR cabinet and on the clock mechanism itself. > > Jeremy > > > On Thu, Jan 4, 2018 at 6:10 AM Bob kb8tq <kb...@n1k.org> wrote: > > > Hi > > > > I would second the previous comment on the 113. Every time I have seen > one > > it > > has been a really noisy device. Certainly *not* what you would want in > > anything > > described as a “quiet lab”. Since it’s full of gears (like a Teletype) > > proper lubrication > > and cleaning are going to be part of the process. The gotcha there will > be > > getting > > old lube out of odd places. I don’t ever remember anybody pointing to > > there > > unit and smiling … > > > > Bob > > > > > On Jan 4, 2018, at 1:15 AM, Jeremy Nichols <jn6...@gmail.com> wrote: > > > > > > I'd like to communicate with someone who has an HP-113AR/BR Frequency > > Divider and Clock, especially someone who has one actually operating. > Mine > > seems to be noisy (motor/gear noise, not 1 KHz whine) and hard to start. > > Having never seen one of these before getting mine, I have no idea > whether > > mine is normal or abnormal. It would be useful to communicate, via this > > list or privately, with someone who has more experience. Mine is an "AR," > > serial 029-00156. > > > > > > Jeremy > > > > > > _______________________________________________ > > > 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. > > > -- > Sent from my iPad 4. > _______________________________________________ > 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.
