Well I may be striking out here. Ionizer seems fine Did find the 3500 V supply at 3750 Reduced with a 100 ohm R in the 18.75 feeder Tried the LF coil no luck on the tube no reading Checked ac amp lots of gain 80+db also fiddling around with that cable input did make the I beam meter move. So that circuits good. Checked the 90 MHz and 12.63 MHz both good. Discovered by the 12.63 the system is set for atomic time. About all thats left is to pull the frequency multiplier and check the 9GHz sig. But I believe the LF coil would have proved that and it did not. I sense the EM is DOA.
I need to study up on those. But I speculate the only thing that runs that is is the -2500V. When I have seen them at hamfests I am unsure anything could go wrong with them. Do not recall a filament. That would basically leave me perhaps a open R in the multiplier string. Its a shame because this is a very clean 5061from the Naval Observatory. On Wed, Oct 21, 2009 at 2:45 PM, John Miles <[email protected]> wrote: > That'd most likely be normal. The filament behaves just like a light bulb > in that regard. The supply can't deliver 10 amps, presumably, so if it can > put 1 volt across it, the resistance should be in the right ballpark. > > -- john, KE5FX > > > -----Original Message----- > > From: [email protected] [mailto:[email protected]]on > > Behalf Of paul swed > > Sent: Wednesday, October 21, 2009 5:03 AM > > To: Discussion of precise time and frequency measurement > > Subject: Re: [time-nuts] hp5061a/b no I beam current > > > > > > Anyone ever see an ionizer short? > > I am reading .1 ohm, though like a light bulb maybe it goes up when hot. > > That seems low though at 1 volt and 1 amp maybe not. > > Your comment of 1-2 ohms is not what I am seeing. Though I do see > > 1 v across > > it in operation. > > > > On Tue, Oct 20, 2009 at 5:21 AM, John Miles <[email protected]> wrote: > > > > > > > > > > _______________________________________________ > 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.
