Date: Wed, 26 Oct 2011 14:34:30

Author: --- Jerry DiMarco

Subject: Re: Cooled Laser

Post:

Have you called the manufacturer? Maybe someone there can advise you
how to proceed...

Jerry
D


At 10/26/2011 04:15 PM, you wrote:

>Hi Chuck, Jerry, Dan,
>
>-No, I dont have a way of checking the high voltage. And, besides, if it
>were null or low, it would not be practical to replace the power supply.
>
>-So far I havent been able to find out whether the tube voltage is 1000 or
>2000 volts, or whether the start voltage is 10,000 volts or more.
>Curiously the laser will restart spontaneously with what appears only to
>be only case temperature drop no kick.
>
>-The power supply is just a sealed brick.
>
>-I was just hoping to buy some time with this old laser using a cheap
>thermal trick.
>
>Thanks, Bill
>
>
>
>From: tap-l-owner@lists.ncsu.edu [mailto:tap-l-owner@lists.ncsu.edu] On
>Behalf Of chuck britton
>Sent: Wednesday, October 26, 2011 3:14 PM
>To: tap-l@lists.ncsu.edu
>Subject: Re: [tap-l] Cooled Laser
>
>
>
>Can you check the high voltage leads across the tube?
>
>
>
>
>
>.
>
>At 3:06 PM -0400 10/26/11, Bill Norwood wrote:
>
>A quick blink-off, but I have never actually caught it blinking off, but
>the beam has always been bright or off when I was checking.
>
>
>
>From: tap-l-owner@lists.ncsu.edu [mailto:tap-l-owner@lists.ncsu.edu] On
>Behalf Of chuck britton
>Sent: Wednesday, October 26, 2011 2:56 PM
>To: tap-l@lists.ncsu.edu
>Subject: Re: [tap-l] Cooled Laser
>
>
>
>Does it 'fade out' or 'snap off'?
>
>
>
>I'd a slow fade would point to a thermal expansion of the optics whereas a
>quick blink-off would more likely be the PS.
>
>
>
>Just guessin'.
>
>.
>
>At 1:30 PM -0400 10/26/11, Bill Norwood wrote:
>
>Hi Taplers,
>
>-Anybody ever had a 1mW He-Ne to stop lasing as soon as it warmed up?
>
>-Well, one of ours has gone into that "mode."
>
>-But, it will run all day if I keep a tray of ice cubes on top of it
>(right now with the end plates off).
>
>-Anybody had such experience?
>
>-Anyone tried installing a cooling fan.
>
>-Kind of hate to part with such a fine, bright beam.
>
>-Also, these are kind of hard to make off with in a back pack, especially
>since they are attached to 2x4x14" channel aluminum.
>
>-Here is a pic from the Internet.
>
>http://www.holoworld.com/webseum/aerotech/DSC00254-tb.html
>
>Thanks for any remarks.
>
>Bill Norwood, U of MD at College Park
>
>
>
>




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