Date: Fri, 9 Mar 2012 11:58:30 -

Author: --- Thomas J Bauer

Subject: Re: Low Pressure Sodium Lamp Need

Post:

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I just checked my lamp with a photodiode and I could not see any 60 Hz
ripple from the lamp. I had
a 500mV DC signal from the intensity with about 2mV rms noise. I also
noticed that the supply
can power a mercury lamp also. I am going to order a mercury bulb as I also
need a new bright mercury lamp. So for the price of an extra bulb you get
two lamps.

The housing and base on these lamps are very nicely machined and black
anodized. I am very pleased
with mine.
Tom

On Fri, Mar 9, 2012 at 8:35 AM, Wallin, Stephen R <
stephen.wallin@colostate-pueblo.edu> wrote:

> Are there discharge lamps around that might use high voltage DC and hence
> less ripple?
> ________________________________________
> From: tap-l-owner@lists.ncsu.edu [tap-l-owner@lists.ncsu.edu] On Behalf
> Of Steve Narf [srnarf@wisc.edu]
> Sent: Thursday, March 08, 2012 11:19 AM
> To: tap-l@lists.ncsu.edu
> Subject: Re: [tap-l] Low Pressure Sodium Lamp Need
>
> Thanks, I been meaning to look for a new one...
>
> -Steve
>
> On 3/8/2012 12:06 PM, Thomas J Bauer wrote:
> Sorry,
> Here is the link to the Sodium Lamp
> http://lambdasys.com/product/LLE-2.htm
>
> Tom
>
> On Thu, Mar 8, 2012 at 12:53 PM, Anthony Lapinski <
> Anthony_Lapinski@pds.org> wrote:
> For online products, try www.froogle.com. This
> is Google's product search
> and is very good.
>
> tap-l@lists.ncsu.edu writes:
> >Tappers,
> >
> >Our physics labs need another low pressure sodium lamp and is having
> >trouble tracking one down. Do any of you have an extra one that could
> >go to a new home? If not, do any of you know of a good supplier of low
> >pressure sodium lamps without spending an arm and a leg? Thank you very
> >much!
> >
> >Adam Beehler
> >
>
>
>
>
>
> --
> Tom Bauer
> Sr Instructor Physics Laboratory
> Wellesley College
> Wellesley, MA 02481
>
>
>
> --
> Steve R. Narf
> Instructional Program Manager
> University of Wisconsin-Madison: Department of Physics
> 1150 Univ. Ave., Madison, WI 53706-1390
> Office Phone/Fax: 608/262-3898 * Dept. Fax: 608/262-3077 * Cell:
> 608/214-6074
> Office location: 2237 Chamberlin Hall
>
> Email Disclaimer:
> I have moderately to severe dyslexia thus my spelling/grammar skills
> aren=92t as strong as I would like.
>
> Lecture Demonstration web site;
> Site: http://www.physics.wisc.edu/facultywiki/Demonstrations
>
> L.R. Ingersoll Museum web site;
> Site: http://www.physics.wisc.edu/museum/
>
>
>


--=20
Tom Bauer
Sr Instructor Physics Laboratory
Wellesley College
Wellesley, MA 02481

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I just checked my lamp with a photodiode and I could not see any 60 Hz=
ripple from the lamp. I had
a 500mV DC signal from the intensity with about 2mV rms noise. I also =
noticed that the supply
can power a mercury lamp also. I am going to order a mercury bulb as=
=A0I also need a new bright mercury lamp. So for the price of an extra bulb=
you get two lamps.
=A0
The housing and base on these lamps are very nicely machined and black=
anodized. I am very pleased
with mine.
Tom=A0
On Fri, Mar 9, 2012 at 8:35 AM, Wallin, Stephen =
R wrote:
Are there discharge lamps around that=
might use high voltage DC and hence less ripple?______________________=
__________________
From: tap-l-owner@lists.ncsu.=
edu [tap-l-owner@lists.nc=
su.edu] On Behalf Of Steve Narf [srn=
arf@wisc.edu]
Sent: Thursday, March 08, 2012 11:19 AMTo: tap-l@lists.ncsu.eduSubject: Re: [tap-l] Low Pressure S=
odium Lamp Need
Thanks, I been meaning to look for a new one...-SteveOn 3/8/2012 12:06 PM, Thomas J Bauer wrote:Sorry,He=
re is the link to the Sodium Lamphttp://lambdasys.com/product/LLE-2.htm
TomOn Thu, Mar 8, 2012 at 12:53 PM, Anthony Lapinski <=
Anthony_Lapinski@pds.org<=
;mailto:Anthony_Lapinski@pds.or=
g>> wrote:
For online products, try www.froogle.com. This is Google's product search<=
br>and is very good.



tap-l@lists.n=
csu.edu csu.edu> writes:>Tappers,>>Our physics labs nee=
d another low pressure sodium lamp and is having
>trouble tracking one down. =A0Do any of you have an extra one that coul=
d>go to a new home? =A0If not, do any of you know of a good supplier=
of low>pressure sodium lamps without spending an arm and a leg? =A0=
Thank you very
>much!>>Adam Beehler>--=
Tom BauerSr Instructor Physics LaboratoryWellesley CollegeWelle=
sley, MA 02481--Steve R. NarfInstructional Program =
Manager
University of Wisconsin-Madison: Department of Physics1150 Univ. Ave., =
Madison, WI 53706-1390Office Phone/Fax: 608/262-3898 * Dept. Fax: 608/262-3077 * Cell: 608/214-6074
Office location: 2237 Chamberlin HallEmail Disclaimer:I have mo=
derately to severe dyslexia thus my spelling/grammar skills aren=92t as str=
ong as I would like.Lecture Demonstration web site;Site: http://www.physics.wisc.edu/facultywiki/Demonstrations
L.R. Ingersoll Museum web site;Site: http://www.physics.wisc.edu/museum/=
-- Tom Bauer
Sr Instructor Physics LaboratoryWellesley CollegeWellesley, MA 0248=
1

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