Changed dimensions of OSRAM mercury bulb 103 W/2?

[G. Esteban Fernandez]

*****
To join, leave or search the confocal microscopy listserv, go to:
http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy
Post images on http://www.imgur.com and include the link in your posting.
*****

Hi everyone,

I just ordered the same OSRAM 103 W/2 bulbs I've been using for years
in a Zeiss HBO 100 unit.  The cathode (top) of all 3 bulbs that
arrived is too wide to fit into the HBO 100's clamp (bottom cathode is
OK).  Comparing with the old bulb I ordered 9 months ago, the anode is
indeed wider now than before.  Has anyone else received OSRAM 103 W/2
bulbs recently and were the dimensions OK?  I got mine from
Bulbtronics.com.  How about with the similar USHIO 103D?

Thanks,
Esteban

[Keith Morris]

*****
To join, leave or search the confocal microscopy listserv, go to:
http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy
Post images on http://www.imgur.com and include the link in your posting.
*****

Hi Esteban,

Just to say that the five Osram HBO 103 W/2's I ordered in August 2014 from Light Source Supplies here in the UK were a perfect fit for our two HBO 100s and Nikon TE2000U microscope. However one of these Osram 103s did explode after 23h use (which I haven't had happen to me ever before) - but that may just be bad luck. As the exploding one was the first used from the batch I ordered five of the Ushio 103 equivalents just in case the whole of the Osram batch was faulty (but the rest have lasted to 300h, with the final one burning in at the moment). Seems unlikely Osram would change the spec on the bulbs as they have been around for so long, so I suspect either faulty manufacture or possibly fakes - either way Osram can verify that either directly or via your supplier. There should be the Osram guarantee card in the box with the lamp. Haven't tried our Ushio's from December 2014 yet, but I'm sure they will fit.

Regards

Keith

http://www.osram.com/osram_com/products/lamps/specialty-lamps/hbo/hbo/index.jsp?productId=ZMP_56327

-----------------------------------------------------------
Dr Keith J Morris
Cellular Imaging Microscopy Core,
The Wellcome Trust Centre for Human Genetics,
Roosevelt Drive,
Oxford,
OX3 7BN,
United Kingdom.
 
Tel:  +44   ( 0 ) 1865  287568
Email:   [hidden email]
Webpage: www.well.ox.ac.uk/microscopy-facilities
 


-----Original Message-----
From: Confocal Microscopy List [mailto:[hidden email]] On Behalf Of G. Esteban Fernandez
Sent: 16 January 2015 06:50
To: [hidden email]
Subject: Changed dimensions of OSRAM mercury bulb 103 W/2?

*****
To join, leave or search the confocal microscopy listserv, go to:
http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy
Post images on http://www.imgur.com and include the link in your posting.
*****

Hi everyone,

I just ordered the same OSRAM 103 W/2 bulbs I've been using for years in a Zeiss HBO 100 unit.  The cathode (top) of all 3 bulbs that arrived is too wide to fit into the HBO 100's clamp (bottom cathode is OK).  Comparing with the old bulb I ordered 9 months ago, the anode is indeed wider now than before.  Has anyone else received OSRAM 103 W/2 bulbs recently and were the dimensions OK?  I got mine from Bulbtronics.com.  How about with the similar USHIO 103D?

Thanks,
Esteban