Hi The “pickup only” part of the deal would be a bit of an issue for some of us :)
Bob > On Feb 24, 2018, at 5:46 AM, George Atkinson via time-nuts > <time-nuts@febo.com> wrote: > > There is one on UK ebay at the moment but its not being given away. From the > one partial photograph it looks a bit rough. > > https://www.ebay.co.uk/itm/HP-5065A-Rubidium-Frequency-Standard/183057846558? > > Robert G8RPI. > >> >> On 24 February 2018 at 10:02 John Miles <j...@miles.io> wrote: >> >>>> >>> Hi >>> >>> Well, if anybody else is “giving away” 5065’s I’d certainly be >>> willing to >>> “accept” >>> one :) >>> >>> Bob >>> >>>> >> Be careful what you wish for. :) The unit Pete is talking about is a >> 1969-era model, in nice overall shape but with the usual bad capacitors on >> the oven controller board. The lamp oven winding should be about 50 ohms >> cold, but is closer to a dead short. It will take a LOT of work to restore >> to working condition. >> >> The failed controller ran long enough to smoke a 1.5-ohm 1W resistor, >> 1N400-something diode, and eventually the 1A line fuse ( >> http://www.ke5fx.com/5065A_A11_sm.jpg ). Needless to say the lamp PCB looks >> like something out of Fukushima. It'll need to be rebuilt from scratch after >> rewinding the heater. >> >> Seriously -- anyone with a 5065A who hasn't checked/replaced the caps on >> A11, don't let this happen to you. They aren't making any more of these >> puppies. If the caps on that board are original, don't bother to check them, >> just replace them, as Luciano suggests at >> http://www.timeok.it/hp5065a-corner-3/. No need for exotic parts, just put >> in whatever you have that is somewhere close to the original values. >> >> Not a bad idea to verify the ESR of the new parts you're installing as >> well. >> >> -- john, KE5FX >> Miles Design LLC >> >> _______________________________________________ >> 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.
