The minor down side is these resonant transformers acoustically hum and run hot. On the plus side they do clean up any kind of noise on the line. Rob, NC0B
Sent from my iPad > On Jul 8, 2016, at 1:52 PM, Brooke Clarke <bro...@pacific.net> wrote: > > > > Hi Bob: > > A resonate transformer may solve your problem. I added one to my first > computer, See Fig 1. > http://www.prc68.com/I/comp.shtml#SWTP > http://www.prc68.com/I/Images/SWTP-01b.jpg > The oval shaped silver can oil capacitor is connected to a winding on the > transformer and resonates at 60 Hz. Think of it as a filter centered at 60 > Hz and as an energy storage device. > This removes line spikes and fills in narrow line drop outs. > https://en.wikipedia.org/wiki/Voltage_regulator#Constant-voltage_transformer > > Here are models with capacities of: 300, 600, 1200 & 1800 VA: > http://www.hammondmfg.com/CVR.htm > Just search for "Constant-voltage transformer". > > -- > Have Fun, > > Brooke Clarke > http://www.PRC68.com > http://www.end2partygovernment.com/2012Issues.html > The lesser of evils is still evil. > > -------- Original Message -------- >> I hope this isn't too far off topic, as this is having a big impact on my >> testing. >> >> I decided to run an A/B test on one of my GPSDOs: comparing the phase of the >> two 10MHz output channels. In the middle of the night, there was a long >> series of 35ns pops in the phase data. Strangely enough, there was nothing >> in the data collected directly from the unit involved. The preceding two >> days we had had a number of switching transients where the lights blinked >> but nothing shut down. So, putting one and one together, I suspect that a >> fair percentage of the strange results I've been getting has been power-grid >> related. >> So, what to do? I've been looking at UPS devices, and I don't even >> understand enough to waste my money on a bad one. The two big questions >> seem to be "on-line" and "sine wave". Make that three: can I trust the mfgs >> claims? Is there something affordable that could run a pair of 5370s and >> maybe another 50W worth of DUTs for up to an hour or two and not be prey to >> power-line transients? Or would it be more cost effective to somehow >> monitor the power line for spikes or phase jumps and blow off tests or cut >> out the offending data? From time to time we get a thread on power-line >> nuts. Should I have been paying more attention? >> >> Bob - AE6RV >> >> ----------------------------------------------------------------------------------- >> GFS GPSDO list: >> groups.yahoo.com/neo/groups/GFS-GPSDOs/info >> _______________________________________________ >> 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. > > > > -- > If this email is spam, report it to > https://support.onlymyemail.com/view/report_spam/ODExMjI6MTg5OTEwNzgwNDpyb2JAbmMwYi5jb206ZGVsaXZlcmVk > _______________________________________________ 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.
