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Dear Volker -

You may try having the existing laser refurbished.  Often a tube can be
replaced (which is the most expensive part), while the rest of the laser is
kept the same.  I would contact Omnichrome and see how much they charge for
that.  We had an Argon laser recently rebuilt (for a BioRad confocal) for a
very good price from American Laser in Utah.  [no financial interest, just a
satisfied customer]

Best of luck to you,
 Holly

Holly L. Aaron
CRL Molecular Imaging Center
http://imaging.berkeley.edu

> -----Original Message-----
> From: Confocal Microscopy List [mailto:[log in to unmask]]On
> Behalf Of Dr. Volker Brinkmann
> Sent: Wednesday, April 09, 2003 12:56 AM
> To: [log in to unmask]
> Subject: Argon/Krypton laser sources?
>
>
> Search the CONFOCAL archive at
> http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal
>
> Dear listers,
>
> we are using Ar/Kr lasers (Omnichrome Series 43) with our Leica
> SP and Leica NT
> systems. The last one lasted 8 months and less than 1000 working
> hours, the one
> we are using now is slowly dying after 1500 h. For the NT system,
> the Ar/Kr
> laser is the only option, and the Leica rep told me they can only
> offer me the
> same Omnichrome laser again which would cost me around 8000 €. Is
> this really
> the only choice? Has any one of you used the Leica NT with
> different lasers -
> escpecially cheaper ones?
>
> Any advice is most welcome.
>
> Volker
>