[time-nuts] Wavecrest DTS 2070

[paul swed]

OK now I know what a 2077 dts is. Quite the piece of test equipment.
I bet it would hurt if you dropped it on your foot.
Regards
Paul
WB8TSL/1


On Mon, Sep 9, 2013 at 2:15 PM, Mark C. Stephens <marks at non-stop.com.au>wrote:

> Amazing Ed, I just had a invasive discography last Thursday!
> I have been a bit quiet because of a back injury too.
> We must be living parallel lives, fortunately my telly is still good, my 9
> year old son has discovered Dr. Who so we are having great time watching it
> :)
> Some of the original series are a hoot :) so overdone but the Dalek's back
> then couldn't fly...
>
> Only 1000 for a crown, It would be cheaper for me to fly to Canada to get
> crown
> My last crown was disaster as a result the clown that put the crown in
> stuffed up and the crown snapped off at the root
> So added to the $2400 for the crown, I am now up for around 7K for an
> implant.
>
> The standby PSU tranny is dead short, zero ohm as compared to the 2v/6A
> supplies 8-10 ohm.
> Any idea what that 2V supply is for?, If I can lose the 2 linear PSU, I'll
> lose a ton of weight, but possibly at the expense of electrical noise.
> I was thinking that is why they used optics between the control board - to
> keep spurious noise to a minimum.
>
> Yeah, I did play roulette by powering it up like that but I was a tad
> annoyed as I was told it was a working unit.
> The bottom board on this one has millions of tiny surface mount caps
> mounted on there sides.
> It looks terribly fragile. Much of a job to get it out?
> All the PSU screw heads are under it (of course)
>
>
>
> -----Original Message-----
> From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
> Behalf Of Ed Palmer
> Sent: Tuesday, 10 September 2013 1:53 AM
> To: Discussion of precise time and frequency measurement
> Subject: Re: [time-nuts] Wavecrest DTS 2070
>
> Sorry, the oracle is out of the office today - I'm the janitor.  :)
>
> I see you've already replaced the 24V supply and powered the unit up.  I
> would have removed all output connections on the supplies and tested them
> seperately.  Are you sure about that transformer short?  Remember that
> primaries on decent size line transformers only have something ike
> 2 to 4  ohms resistance at most.  I wondered why yours was 12 lbs heavier
> than mine.  Linear supplies - that would do it!
>
> The expanded/exploded capacitors could be just from age, or they could be
> from an output fault on the power supply that caused the voltage to go
> high.  That's why I would have tested both power supplies offline.
>
> You said it's alive, but you haven't mentioned if it actually works.
>
> By the way, it turns out that I paid dearly for my good luck with the
> repair of my 2077.  In the two weeks following that, I got a pinched nerve
> in my back that's still giving me trouble, I broke a big chunk off a tooth
> and am now scheduled for a crown at a cost of about $1000, and my
> big-screen TV died! :(
>
> Ed
>
>
> On 9/9/2013 1:01 AM, Mark C. Stephens wrote:
> > Nod, this is the problem I have, It says 110/220 but is it automatic or
> do I need to change the strapping?
> > I had a look at Ed Palmers excellent tear down and there were switch
> mode PSU in it.
> > But he has a 2077, mines a 2070 so it could be completely different, or
> not..
> > Arrgh.. I am so wanting to plug it in, unlike Ed I have a place ready
> for it!
> > I guess Oracle Palmer will be online later and will be able to provide
> > an answer :)
> >
> > -----Original Message-----
> > From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com]
> > On Behalf Of Bob Stewart
> > Sent: Monday, 9 September 2013 2:22 PM
> > To: Bob Stewart; Discussion of precise time and frequency measurement
> > Subject: Re: [time-nuts] Wavecrest DTS 2070
> >
> > Oops.  Maybe I should have just kept my peace.  I found a User's Guide
> > here: "http://qmsi.com/pics/Wavecrest2070.a.pdf" which indicates it
> > can take either 110 or 220.  Pry open the fuse compartment and see
> > what's in there.  Someone else will now probably post the right way to
> > go about it, though.  =)
> >
> >
> > Bob - AE6RV
> >
> >> ________________________________
> >> From: Bob Stewart <bob at evoria.net>
> >> To: Discussion of precise time and frequency measurement
> >> <time-nuts at febo.com>
> >> Sent: Sunday, September 8, 2013 11:13 PM
> >> Subject: Re: [time-nuts] Wavecrest DTS 2070
> >>
> >>
> >> Go to a tourist supply store and buy a 110 to 230/250 transformer.  I
> did that the year I spent in France for a TV or something we took over
> there.  Be sure you get one that's big enough.  Be sure you don't wire it
> backwards and get 250 to 500!!!
> >>
> >> Bob - AE6RV
> >>
> >>> ________________________________
> >>> From: Mark C. Stephens <marks at non-stop.com.au>
> >>> To: "time-nuts at febo.com" <time-nuts at febo.com>
> >>> Sent: Sunday, September 8, 2013 11:05 PM
> >>> Subject: [time-nuts] Wavecrest DTS 2070
> >>>
> >>>
> >>> I just received my DTS 2070 from 110 volt land.
> >>> I live in 230 (well actually 250) volt land.
> >>>
> >>> I haven't plugged it in and I am being a total wuss about breaking the
> CAL seals as they are still current.
> >>>
> >>> Please help me, I really, really need to measure something with it!
> Anything with it! But to do that I need to apply power!
> >>>
> >>> Is the DTS 2070 PSU auto sensing or do I need to change something?
> >>>
> >>>
> >>> --marki
> >>>
> >>>
>
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