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Old 03-26-2008, 08:42 AM #1
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Default Helium Neon tube

hey guys, i got givin a HeNe tube and driver, and as i was pulling it out of the tube, (plastic that was holding it) i broke something, i need help in getting this back in working order... what should i test? ie tube wise to make sure i havnt fried something there. and what do u need to know...

Laser:- Melles Griot
Model No. 05-LHP-153

any help would be apricated


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Old 03-26-2008, 11:10 AM #2
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Default Re: Helium Neon tube

What exactly did you break. :P
If it was glass, fraid you're stuffed.
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Old 03-26-2008, 11:36 AM #3
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Default Re: Helium Neon tube

electronic.... sorry.. i pulled it out and didnt realise that 1 or 2 wires were broken off... then i applyed power and it kinda sparked and "zapped.. then i turned it off, i thought i fried the power mosfet but replaced it and still nothing
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Old 03-26-2008, 02:15 PM #4
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Default Re: Helium Neon tube

Where does it arc exactly?
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Old 03-26-2008, 03:13 PM #5
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Default Re: Helium Neon tube

Detailed pictures would be helpful!
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Old 03-27-2008, 01:30 PM #6
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Default Re: Helium Neon tube

ill take photos on he weekend sometime
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Old 03-31-2008, 12:01 AM #7
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Default Re: Helium Neon tube

Hook your PS leads (+ & -)up to a each end of a (any one of end prongs) a 12" FLORSESCENT tube if it lites your then your PS is OK and you broke your laser tube vaccuum seal(bummer unless it can be filled and resealed)
Ref: Red goes to the little electrode anode+ and black to the big aluminum cathode-
Laser tube voltage is 6KVmin to start then about *3KV while running.


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I'm at rep =0 :'(
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