Hello Hugh & Luciano — Luciano: Hugh said his clock was a 115CR, not BR. The CR has the mechanical digital display.
I have a 115BR that I want to bring back on the air after about 30 years of power-off in my father’s lab. The state of any electrolytic and tantalum capacitors after that much time has me concerned. I would be very happy to hear details of your experience in servicing the -115BR. Thank you. — Eric > On 2016 Dec 23, at 03:05 , timeok <[email protected]> wrote: > > > Hi, > I have the complete manual of the HP115BR. Pse contact me directly to send > you the file. > If you need I can suggest some service activity normally are needed by this > old clock. > Luciano, > [email protected] > > > From "time-nuts" [email protected] > To [email protected] > Cc > Date Fri, 23 Dec 2016 10:29:01 +1100 > Subject [time-nuts] HP 115CR Clock Powerup / Documentation > Hi, > > I've been fortunate enough to acquire a HP 115CR Frequency > Divider/Digital Clock - it's electromechanical and I suspect built in > the mid/late 60s - just slightly older than your humble correspondent. > > It's similar though not identical to the 115CR shown here > http://www.leapsecond.com/hpclocks/ > > I'd like to fire it up - given it's age my thought was to use a current > limited 24V bench supply and slowly ramp up the voltage the first time - > would welcome any thoughts on this. I gather from the supporting > documentation for the powersupply it's rated at drawing ~250mA > > I've been unable to locate a scan of the owners manual or service manual > online. Have looked at time-nuts archives, leapsecond.com and hparchive > to no avail. There does appear to be a hardcopy available for purchase > - happy to fall back to this if necessary, but any pointers welcome. > > My goal ultimately is to have it on display running, synchronised to a > GPS disciplied 10MHz source :) > > Any thoughts and feedback welcome - this is my first foray into old > clocks :) > > Kind Regards, > Hugh > VK3YYZ/AD5RV > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
