[time-nuts] HP E3610A Power supply
paulswedb at gmail.com
Fri Jun 20 09:04:27 EDT 2014
Exactly lets face it someone at Gmail screwed up or there was a serious
I also noticed my inbox was pretty thin. Now this morning its more normal.
The issue has run longer then a few days as this is the tread that I
started to notice something funny on.
On Thu, Jun 19, 2014 at 10:54 PM, Didier Juges <shalimr9 at gmail.com> wrote:
> I just started getting messages again today after almost a week of getting
> This account is on gmail
> No idea what happened...
> Didier KO4BB
> On June 18, 2014 10:42:25 PM CDT, Tom Van Baak <tvb at LeapSecond.com> wrote:
> >The E3610A posting was a good one. This explains why some high-end
> >oscillator sockets have a fuse, series diode, and zener shunt -
> >protects the expensive oscillator from both reverse- and over-voltage.
> >I'll look into the spam issue. If there's more than a couple contact me
> >off-list and we'll debug it.
> >We've been having issues with aol, yahoo, comcast postings recently.
> >Might be related.
> >When in doubt, you can always read messages at:
> > http://www.febo.com/pipermail/time-nuts/
> >Sometimes it's actually more convenient to read them there by author or
> >thread than by inbox.
> >----- Original Message -----
> >From: "paul swed" <paulswedb at gmail.com>
> >To: "Discussion of precise time and frequency measurement"
> ><time-nuts at febo.com>
> >Sent: Wednesday, June 18, 2014 7:41 PM
> >Subject: Re: [time-nuts] HP E3610A Power supply
> >> Bert just finding out that google mail is treating your emails as
> >> Not sure if the message appears but as you can see it questions who
> >you are.
> >> I found numbers of missing emails a few minutes ago.
> >> Regards
> >> Paul
> >> WB8TSL
> >> On Thu, May 22, 2014 at 7:59 AM, <EWKehren at aol.com> wrote:
> >>> This may be off topic but I did check with Tom and many time nuts
> >may have
> >>> HP E3610A power supplies on their bench and mine smoked a ublox GPS
> >so that
> >>> makes it topic related..
> >>> The reference section has some 1 uF 50V capacitors and in my unit
> >>> shorted. The reference section has fuses on the board but they did
> >>> open. The
> >>> 7912 overheated and shorted out, traces are discolored the op amp
> >>> signs of overheating and burned out. The result was the output went
> >>> 30V+
> >>> and next morning the ublox chip plastic showed where the chip
> >smoked. As
> >>> a minimum I recommend replacing the 1 uF capacitors with new quality
> > caps,
> >>> I also ordered 15 V 5 W zeners and 0.5 A 20 mm glass fuses.
> >>> Bert Kehren
> >time-nuts mailing list -- time-nuts at febo.com
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> Sent from my Motorola Droid Razr HD 4G LTE wireless tracker while I do
> other things.
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