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Thanks for everybody that reply to my request for info.  Here is a summary
of the vendors that can provide replacement/rebuild of the 3-line Kr/Ar
laser.

Dynamic Laser  (Amir Behjani)
http://www.DynamicLaser.net

DZ Laser Service  (Don Zanelli)
http://www.dzlaser.com

Melles Griot (643-RYB looks right)
http://lasers.mellesgriot.com/default.asp?CatID=117

I also asked Spectra-Physics but they do not supply any air-cooled laser
anymore; they do have water-cooled ones which are much larger in size.

Thanks again for the quick responses.  Cheers.

--
Pang (Wai Pang Chan, [log in to unmask])


>> Our Bio-Rad MRC600 has a Kr/Ar laser providing 3 lines: 488, 568 and 647.
>> We will need a replacement real soon as the anode current is no longer
>> adjustable to below 10A.  I have 2 questions.
>>
>> 1.  Where can we get a replacement laser?  I guess replacing the laser
>> tube will fix the problem.