Date: Fri Mar 13 13:51:46 2009 Back to Contents ------------------------------------------------------------------------

Author: cbettis@unlserve.unl.edu Received: from wm-imp-3.unl.edu (wm-imp-3.unl.edu [129.93.2.17]) by uni00ml.unity.ncsu.edu (8.13.7/8.13.8/N.20071210.01) with ESMTP id n2DGoZ1J025130 for ; Fri, 13 Mar 2009 12:50:36 -0400 Received: from localhost (localhost [127.0.0.1]) by wm-imp-3.unl.edu (8.13.8/8.13.8) with ESMTP id n2DGqTDx025019 for ; Fri, 13 Mar 2009 11:52:29 -0500 Received: from lecturdemo.unl.edu (lecturdemo.unl.edu [129.93.36.196]) by wm-imp-3.unl.edu (Horde MIME library) with HTTP; Fri, 13 Mar 2009 11:52:29 -0500 Message-ID:

Subject: Re: Ruben's tube and propane

Post:

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Dave,

Is a regulator valve necessary? Would the fitting labeled "B" under =20
accessories allow me to connect up my tygon tubing from the Ruben's =20
tube to the tank?

http://www.mcmaster.com/#propane-gas-tanks/=3Dzhv2u[1]

Cliff

Quoting David Maiullo :

> Hi Cliff,
>
> Dale is correct in his description of how well propane works in the
> Reuben's tube. I actually don't know how many places I've used the
> Reuben's tube.=A0 In bars, libraries, schools, gyms, and outside (!) demo
> shows, all with many different air currents and winds.=A0 If you are
> really worried about the air movement, just make a sturdy plexi shield
> to stand one foot back and around the sides of the tube.=A0 I made one
> when I first built the tube 20 years ago, but I never actually need it
> so I don't use it.=A0 You sometimes need to finely regulate the gas flow
> yourself to make the wave forms visible, and this will vary as you go
> from low frequency to higher frequency standing waves, but you quickly
> learn how to do that when you are using it.
>
> McMaster-Carr is a great place to purchase a 5 lb propane tank to use
> in shows and in classrooms.=A0 Since so many schools are taking natural
> gas out of the classroom for insurance and safety purposes, having your
> own tank guarantees you can perform the demo where and whenever you
> want and need to.
>
> BTW, my tube has size .04" holes, or 1.016mm, spaced every half inch
> for 72".=A0 This seems to work pretty well.
>
> Happy gas tubing,
> Dave/RU
>
>

Links:
------
[1] http://www.mcmaster.com/#propane-gas-tanks/=3Dzhv2u


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Dave,

Is a regulator valve necessary? Would the fitting lab=
eled
"B" under accessories allow me to connect up my tygon tubing from =
the
Ruben's tube to the tank?

http://www.mcmaster.com/#propane-gas-tanks/=3Dzhv2u <3D"http://www.mcmaster.com/#propane-gas-tanks/=3Dzhv2u">
Cliff

Quoting David Maiullo
:

> Hi Cliff,
>
> Dale is correct in his description of how well propane works in the> Reuben's tube. I actually don't know how many places I've used the
> Reuben's tube.=A0 In bars, libraries, schools, gyms, and outside (!)
demo
> shows, all with many different air currents and winds.=A0 If =
you
are
> really worried about the air movement, just make a sturdy plex=
i
shield
> to stand one foot back and around the sides of the tube.=A0=
I
made one
> when I first built the tube 20 years ago, but I never
actually need it
> so I don't use it.=A0 You sometimes need to finel=
y
regulate the gas flow
> yourself to make the wave forms visible, and
this will vary as you go
> from low frequency to higher frequency
standing waves, but you quickly
> learn how to do that when you are
using it.
>
> McMaster-Carr is a great place to purchase a 5=
lb
propane tank to use
> in shows and in classrooms.=A0 Since so many s=
chools
are taking natural
> gas out of the classroom for insurance and safe=
ty
purposes, having your
> own tank guarantees you can perform the demo
where and whenever you
> want and need to.
>
> BTW, =
my
tube has size .04" holes, or 1.016mm, spaced every half inch
> =
for
72".=A0 This seems to work pretty well.
>
> Happy gas
tubing,
> Dave/RU
>
>
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From tap-l-owner@lists.ncsu.edu Fri Mar 13 13:51:46 2009

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