Soldering on a plate would look bad.  I could probably neck it down with
some tool I don't have.
I'm just hoping to find the right thing.


On Mon, Oct 26, 2015 at 10:31 AM, Neil <picdude3@narwani.org> wrote:

> That end reminds me of a closed-end thermocouple probe/sheath, though
> 7/16" is a bit large for that, but perhaps see if any thermocouple
> manufacturer has that size sheath.  Places like omega.com and
> blazeprobes.com .
>
> Alternately, mcmaster.com has brass tubing also, and perhaps you might
> find a more accurate size there.  Can you close off the end yourself
> (solder a plate on, etc)?
>
> Cheers,
> -Neil.
>
>
> On 10/25/2015 9:13 PM, David VanHorn wrote:
> > I need some help sourcing the metal fitting in the picture:
> > http://ecx.images-amazon.com/images/I/310e-2lm8RL._SY355_.jpg
> >
> > It's 7/16 OD, thin wall brass.  It matches K+S stock tubing except that
> the
> > end is rounded off and closed.
> > http://www.hobbylinc.com/htm/k+s/k+s8137.htm
> >
> > The diameter is critical, the fitting it goes in doesn't flex much.
> >
> > I am not too picky on length, more than half is good, more than an inch
> is
> > a problem.
> >
> > A hole in the closed end is actually good, but not critical.
> >
> > Someone somewhere makes these things, it's probably some common thingus
> > used on something I've never heard of.   Can anyone here match it up wi=
th
> > something?
> >
> > Jewlery fittings are close, but all I've seen are too small in diameter
> and
> > only about 1/4" long.
> >
> >
> >
> > Why:
> >
> > I have an antique "Violet Ray" device that I would like to make some en=
ds
> > for.  It's a rare one, which runs from 32V "farm current".  Such device=
s
> > were made by the truckload around the turn of the century, to cure
> whatever
> > ailed you, but the vast majority are 110 or 220V for europe.  The farm
> > current device is unique.
> >
> > I could just go buy something like in the pic, but I want to make
> something
> > more like a geissler tube, which is a bit of a project.  To that end,
> I've
> > taken up glassblowing, found a source of uranium glass, built a vacuum
> > manifold and "filling station" and learned to seal off these tubes when
> > under vacuum of 1-10 torr.
> >
> > On Ebay, there is a set of Christmas lights that are for 32V farm
> current,
> > starting bid is $750 for eight lamps in a string.
> >
> http://www.ebay.com/itm/Vintage-Christmas-Lights-Delco-Farm-32-Volt-Noma-=
4-Volt-Mazdas-Extremely-Rare-/171975314757?hash=3Ditem280a870d45:g:~rcAAOSw=
5VFWHB7f
> >
> > Apparently the decision for 32V went along the lines that farmers
> generally
> > suck at being electricians, so 32V isn't too bad on I^2R losses, but lo=
w
> > enough for few fried farmers.  Standard 110V plugs and switches were us=
ed
> > though, which could get exciting if you took your farm device and plugg=
ed
> > it in on a trip to the big city.
>
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