Laser pointer discussion. Read/write reviews of laser pointers and laser pointer companies. Learn about all types of laser pointers and lasers





Welcome to Laser Pointer Forums! If you are looking for a laser pointer or want to compare different laser pointer companies, you may want to check out the LPF Laser Pointer Company Database. The link will open in a new window for your convenience.








Green Laser Pointers by Category Blue Laser Pointers by Category Red Laser Pointers by Category
Yellow Laser Pointers by Category Violet Laser Pointers by Category Orange Laser Pointers by Category
Top Laser Pointers by Power - 1 Watt+ Top Laser Pointers by Power - 500mW+ Top Laser Pointers by Power - 250mW+
Laser Pointer Database High Power Laser Pointers Laser Pointer Diodes
Laser Technology Laser Pointer Parts Lasers by Wavelength
Top 10 Laser Pointer Companies Laser Pointer Company Database Visible Beam Laser Pointers


One laser store meets all your needs

























Go Back   Laser Pointer Forums - Discuss Laser Pointers > Lasers > Gas Lasers



LPF List of Laser Pointer Companies (link opens new window)



Reply
 
LinkBack Thread Tools Display Modes
Old 04-11-2010, 07:12 AM #1
TheTeslaWarrior's Avatar
Class 2 Laser
 
Join Date: Aug 2009
Location: California, us
Posts: 404
Rep Power: 60
TheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond repute
TheTeslaWarrior TheTeslaWarrior is offline
Class 2 Laser
TheTeslaWarrior's Avatar
 
Join Date: Aug 2009
Location: California, us
Posts: 404
Rep Power: 60
TheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond repute
Post HeNe laser removing outer tube thingy :D

hi all,

i have a HeNe laser i got off ebay for $25 w/ pwr supply i was wondering if there is any way of removing the outer tube thingy its in revealing the laser tube in all its laser tubey good ness
oh yeah i have pics!







__________________
my wavelengths:

http://laserpointerforums.com/f43/un...0-a-56708.html
TheTeslaWarrior is offline   Reply With Quote







LPF List of Laser Pointer Companies (link opens new window)







Old 04-11-2010, 08:34 AM #2
aryntha's Avatar
Class 3R Laser
 
Join Date: Nov 2009
Location: Evergreen, CO
Posts: 2,027
Rep Power: 2778
aryntha has a reputation beyond reputearyntha has a reputation beyond reputearyntha has a reputation beyond reputearyntha has a reputation beyond reputearyntha has a reputation beyond reputearyntha has a reputation beyond reputearyntha has a reputation beyond reputearyntha has a reputation beyond reputearyntha has a reputation beyond reputearyntha has a reputation beyond reputearyntha has a reputation beyond repute
aryntha aryntha is offline
Class 3R Laser
aryntha's Avatar
 
Join Date: Nov 2009
Location: Evergreen, CO
Posts: 2,027
Rep Power: 2778
aryntha has a reputation beyond reputearyntha has a reputation beyond reputearyntha has a reputation beyond reputearyntha has a reputation beyond reputearyntha has a reputation beyond reputearyntha has a reputation beyond reputearyntha has a reputation beyond reputearyntha has a reputation beyond reputearyntha has a reputation beyond reputearyntha has a reputation beyond reputearyntha has a reputation beyond repute
Default Re: HeNe laser removing outer tube thingy :D

Almost never.

That's an old Hughes, so it may just be mounted with set screws, but usually the metal outer tube has the glass tube potted in with RTV silicone.

And there's no way to get rid of that. (Not really, at least.)

Really, I'd just enjoy the laser as-is, since it looks like it works, and get a bare tube from someone on the forum here if you want to see plasma.
__________________

3392nm:REO LHIP HeNe 2mW ∙ 980nm:OLIKE 155mW

808nm:OLIKE 200mW ∙ JETL PLC 600mW(682pk)
780nm:OLIKE 120mW
685nm:18650 47mW
671nm:PGL3M 281mW DPSS ∙ PGL3C 278mW
655nm:LOC 254mW ∙ OLIKE 221mW ∙ Yob 320mW
638nm:Sanyo 40mW ∙ HL63133 200mW ∙ PGL3C 463mWpk ∙ ML520 700mW
633nm:JDS1145 HeNe 28mW ∙ JDS1145 HeNe 26mW
612nm:MG 05LOR151 HeNe 3mW ∙ REO LSTP 3mW
609nm:REO LHOR 1mW
604nm:REO LSTP 2mW
594nm:Rigel 3mW ∙ LG PGL3C 15mWpk ∙ Lasos 7512 3mW ∙ CNI MGL3 58mWpk
589nm:CNI PGL3C 106mW ∙ CNI PGL3C 85mW
561nm:CNI PGL3C 30mW(41pk)
556nm:CNI PGL3C 20mW(22pk)
544nm:JDS1675P HeNe 2mW ∙ REO LHGR 2mW ∙ Lasos 7786 2mW
532nm:PGL3C 150mW(180pk) ∙ PGL3C 578mWpk ∙ PLC 440mWpk
515nm:JDS 221420GL ArI 30mW
510nm:52mW DG#2 ∙ 50mW 26650 DG
488nm:Nlx DPSS 7mW ∙ JDS 2214 ArI 40mW ∙ JDS FCD488 DPSS 25mW
ML:MG 65A106025 ArI ML 115mW
476/480nm:Nichia Diode 28mW
473nm:PGL3A 45mW(80pk) ∙ PGL3C 110mWpk ∙ PGL3C 95mWpk ∙ RPLB-25 60mWpk
465nm:DTR NDB7676 2.03w
458nm:JDS 2214VL ArI 8mW ∙ JDS 2214VL ArI 12mW ∙ RHD Diode 1.7W
452nm:Osram SM 47mW
445nm:Yob 1410mW ∙ Polaris 156mW ∙ PGL3C 1200mW ∙ DTR-EHG 32650 2136mW
405nm:Yob 630mW ∙ Qfox 750mW ∙ JETL PLC 780mW
aryntha is offline   Reply With Quote
Old 04-11-2010, 10:27 AM #3
HIMNL9's Avatar
Class 4 Laser
 
Join Date: May 2009
Location: Lost somewhere in the EU mess ;)
Posts: 5,416
Rep Power: 404
HIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond repute
HIMNL9 HIMNL9 is offline
Class 4 Laser
HIMNL9's Avatar
 
Join Date: May 2009
Location: Lost somewhere in the EU mess ;)
Posts: 5,416
Rep Power: 404
HIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond repute
Default Re: HeNe laser removing outer tube thingy :D

There are marks that seem set screws, on the tube, so it can be tried, but the possibility is low ..... worth the trial just if the laser is non working, and you want the tube for a plasma lamp ..... popping out with care the caps, loosing all the screws and trying to see if it come out or move .....

Benzine or acetone can take care of silicone, but it can require days, if not a pair of weeks, if the whole tube was glued inside ..... and can potentially ruin the end mirrors, so as said, if it's not lasing at all, may try, but if it's working good, don't worth the risk .....
__________________
High Impulse Multipath Neutron Laser (mark 9 ) (LOL)
Dare mo mita koto no nai, kaze, kumo, suna, umi ..... Kokoro no hate no doko ka eien ga kagayaku.
HIMNL9 is offline   Reply With Quote
Old 04-11-2010, 11:15 AM #4
JLSE's Avatar
A.R Coated Madman
 
Join Date: Dec 2007
Location: ɯɐǝq ssɐ-ǝʇıɹq ǝɥʇ puıɥǝq
Posts: 3,587
Rep Power: 716
JLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond repute
JLSE JLSE is offline
A.R Coated Madman
JLSE's Avatar
 
Join Date: Dec 2007
Location: ɯɐǝq ssɐ-ǝʇıɹq ǝɥʇ puıɥǝq
Posts: 3,587
Rep Power: 716
JLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond repute
Default Re: HeNe laser removing outer tube thingy :D

I have slipped dead tubes out that had gobs of silicone AND set screws..

The best way usually requires a tad more effort, so making a special tool is of course a must

Take an old hacksaw blade and grind off the remaining teeth. Next smooth the edges so as not to scratch anything.

Now sharpen one end / tip of the blade, into a blade. You basically use this tool like a narrow razor blade with a long handle.

Keep it tight to the aluminum body, and slowly work your way through the glue. Hopefully in your case the bead of glue wont run the length of the shell. Its usually pumped in through holes in the outer case, and should just be little blobs.

I haven't seen the inside of your specific laser, so attention to care may need be greater depending on how much space is in between the glass and the wall. Also some tubes / shell's are not flat on the inside and have grooves that may be somewhat in the way.


Oh and BE GENTLE!!
__________________
Recent Projects:
-----
JLSE is offline   Reply With Quote
Old 04-11-2010, 12:33 PM #5
lasersbee's Avatar
Class 4 Laser
 
Join Date: Sep 2008
Location: Quebec, Canada
Posts: 15,793
Rep Power: 42688
lasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond repute
lasersbee lasersbee is offline
Class 4 Laser
lasersbee's Avatar
 
Join Date: Sep 2008
Location: Quebec, Canada
Posts: 15,793
Rep Power: 42688
lasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond repute
Default Re: HeNe laser removing outer tube thingy :D

I've removed the aluminum casing from 16" HeNe tubes with some
success...
The dots around the circumference at the ends of the tube that look
like set screws are actually fill holes where silicone was injected to
hold the Glass tube centered in the Aluminum protection casing..

You will need a few long box cutter blades in a holder similar to this....

2 Utility Knife Set Box Cutter 7 Snap-off Razor Blades on eBay.ca (item 290300723730 end time 29-Apr-10 10:54:15 EDT)

You will need to remove the end caps...(they may be glued or have
a set screw.
Then remove the Ballast resistor and wireing... The Ballast resistor
if not visible is sometimes potted into the End Cap..

Using your Razor Cutter blade fully extended and locked... cut the
silicone blobs holding the Glass tube to the Aluminum tube using
a sawing motion.. Change your blade as required...
This worked for me...

BTW... I can see wanaburn's method working as well....
and like he said BE GENTLE... it is a thin Glass tube...


Jerry
__________________

J.BAUER Electronics Home Page

LaserBee Laser Power Meter Products meet your needs
at affordable Prices:
See them all here on LPF

LaserBee Power Meter products ALWAYS in Stock
and ready to ship

Also available on eBay:Check availability here..

Subsidary: Pharma Electronic Solutions


This banner is available to and can be copied/used FREE by any LaserBee owner
lasersbee is offline   Reply With Quote
Old 04-11-2010, 08:12 PM #6
TheTeslaWarrior's Avatar
Class 2 Laser
 
Join Date: Aug 2009
Location: California, us
Posts: 404
Rep Power: 60
TheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond repute
TheTeslaWarrior TheTeslaWarrior is offline
Class 2 Laser
TheTeslaWarrior's Avatar
 
Join Date: Aug 2009
Location: California, us
Posts: 404
Rep Power: 60
TheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond repute
Default Re: HeNe laser removing outer tube thingy :D

thanks for the advise i just came across an old handheld scanner so fingers crossed that i can use that tube for some plasma ill let you guys know i'm taking it apart today
__________________
my wavelengths:

http://laserpointerforums.com/f43/un...0-a-56708.html
TheTeslaWarrior is offline   Reply With Quote
Old 04-11-2010, 09:36 PM #7
TheTeslaWarrior's Avatar
Class 2 Laser
 
Join Date: Aug 2009
Location: California, us
Posts: 404
Rep Power: 60
TheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond repute
TheTeslaWarrior TheTeslaWarrior is offline
Class 2 Laser
TheTeslaWarrior's Avatar
 
Join Date: Aug 2009
Location: California, us
Posts: 404
Rep Power: 60
TheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond repute
Default Re: HeNe laser removing outer tube thingy :D

SUCCESS! any tips before hooking it up? ballast resistor? can i use my old pwr supply for this little guy?

__________________
my wavelengths:

http://laserpointerforums.com/f43/un...0-a-56708.html
TheTeslaWarrior is offline   Reply With Quote
Old 04-11-2010, 09:48 PM #8
JLSE's Avatar
A.R Coated Madman
 
Join Date: Dec 2007
Location: ɯɐǝq ssɐ-ǝʇıɹq ǝɥʇ puıɥǝq
Posts: 3,587
Rep Power: 716
JLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond repute
JLSE JLSE is offline
A.R Coated Madman
JLSE's Avatar
 
Join Date: Dec 2007
Location: ɯɐǝq ssɐ-ǝʇıɹq ǝɥʇ puıɥǝq
Posts: 3,587
Rep Power: 716
JLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond repute
Default Re: HeNe laser removing outer tube thingy :D

If the ballast resistor was not on the tube already, it probably incorporated into the HV leads or P/S, maybe hiding under that red plastic cap.

If it aint broke, dont fix it, in the pics it was working before, so you should be okay as is.
Without the resistor the tube will flicker or misbehave. You should be g00d without adding anything.


Nice clean extraction, congrats. Just keep in mind how delicate these are, and avoid touching the ends, or coming near them during operation... zzZZap! Not lethal just startling.
__________________
Recent Projects:
-----
JLSE is offline   Reply With Quote
Old 04-11-2010, 09:57 PM #9
TheTeslaWarrior's Avatar
Class 2 Laser
 
Join Date: Aug 2009
Location: California, us
Posts: 404
Rep Power: 60
TheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond repute
TheTeslaWarrior TheTeslaWarrior is offline
Class 2 Laser
TheTeslaWarrior's Avatar
 
Join Date: Aug 2009
Location: California, us
Posts: 404
Rep Power: 60
TheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond repute
Default Re: HeNe laser removing outer tube thingy :D

this isn't from the tube i just got it out of a scanner i decided not to risk breaking the other one and came across this thing so yeah lucky me but i mean the tube is way smaller than my other one so will my other supply work for this?
__________________
my wavelengths:

http://laserpointerforums.com/f43/un...0-a-56708.html
TheTeslaWarrior is offline   Reply With Quote
Old 04-11-2010, 10:04 PM #10
daguin's Avatar
Super Moderator
 
Join Date: Mar 2008
Location: Sunny Southern California
Posts: 16,636
Rep Power: 1432
daguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond repute
daguin daguin is offline
Super Moderator
daguin's Avatar
 
Join Date: Mar 2008
Location: Sunny Southern California
Posts: 16,636
Rep Power: 1432
daguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond repute
Default Re: HeNe laser removing outer tube thingy :D

It would be nice to be able to say, "This is the way to do it." Unfortunately, different tubes are different.

Some have plastic set screws, some do not, some have a combination. Some have enough room along the side for the saw blade to fit, some do not. I use a combination of 4 or 5 different techniques. Somtimes ONLY the judicious and careful use of a dremel and a cutting blade will do it. Sometimes all you have to do is push the tube out with a piece of PVC pipe.

Experiment. You will break some. So what? If you are going to get into salvaging old lasers, you are going to have to get creative AND accept that you are going to incur some loss.

I have a dozen of the inner, glass, plasma tubes sticking up out of a pencil holder on my desk. I shine my lasers at them and watch the light "dance' on the wall behind them.

Remember, it's a hobby

Quote:
Originally Posted by TheTeslaWarrior View Post
this isn't from the tube i just got it out of a scanner i decided not to risk breaking the other one and came across this thing so yeah lucky me but i mean the tube is way smaller than my other one so will my other supply work for this?
That little tube probably only needs ~1.2KV to run. If you use a higher voltage PSU, you have to use a higher resistor (and it WILL heat up). I don't know what the voltage is on the PSU you've got, but I would probably look to pick up a smaller PSU for this little tube

Peace,
dave
__________________
How To Get Along In and Be Accepted in the Forum

If you got some value out of reading this forum, how about donating $2 to keep it going?
Click Here to donate

Love all, trust a few, do wrong to none.
-William Shakespeare

Last edited by daguin; 04-11-2010 at 10:07 PM.
daguin is offline   Reply With Quote
Old 04-11-2010, 10:06 PM #11
JLSE's Avatar
A.R Coated Madman
 
Join Date: Dec 2007
Location: ɯɐǝq ssɐ-ǝʇıɹq ǝɥʇ puıɥǝq
Posts: 3,587
Rep Power: 716
JLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond repute
JLSE JLSE is offline
A.R Coated Madman
JLSE's Avatar
 
Join Date: Dec 2007
Location: ɯɐǝq ssɐ-ǝʇıɹq ǝɥʇ puıɥǝq
Posts: 3,587
Rep Power: 716
JLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond repute
Default Re: HeNe laser removing outer tube thingy :D

LOL, I thought it looked small, was scratching my head on that one.

The power supply shouldnt be much different and should be okay. If the tube doesnt like it, it just wont operate properly.
Try a few different resistors...

I have used a PC monitor flyback to drive a smal tube once. The voltage was way higher than the tube was originally operated at. A single tube would not work, but two tubes wired in parallel worked fine.

In other words, it wont hurt to try..

Why not just use the P/S that it came with? You had the complete scanner yes?
__________________
Recent Projects:
-----

Last edited by JLSE; 04-11-2010 at 10:09 PM.
JLSE is offline   Reply With Quote
Old 04-11-2010, 11:39 PM #12
TheTeslaWarrior's Avatar
Class 2 Laser
 
Join Date: Aug 2009
Location: California, us
Posts: 404
Rep Power: 60
TheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond repute
TheTeslaWarrior TheTeslaWarrior is offline
Class 2 Laser
TheTeslaWarrior's Avatar
 
Join Date: Aug 2009
Location: California, us
Posts: 404
Rep Power: 60
TheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond repute
Default Re: HeNe laser removing outer tube thingy :D

it did work



used 120kohm resistor

__________________
my wavelengths:

http://laserpointerforums.com/f43/un...0-a-56708.html

Last edited by TheTeslaWarrior; 04-11-2010 at 11:44 PM.
TheTeslaWarrior is offline   Reply With Quote
Old 04-11-2010, 11:47 PM #13
JLSE's Avatar
A.R Coated Madman
 
Join Date: Dec 2007
Location: ɯɐǝq ssɐ-ǝʇıɹq ǝɥʇ puıɥǝq
Posts: 3,587
Rep Power: 716
JLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond repute
JLSE JLSE is offline
A.R Coated Madman
JLSE's Avatar
 
Join Date: Dec 2007
Location: ɯɐǝq ssɐ-ǝʇıɹq ǝɥʇ puıɥǝq
Posts: 3,587
Rep Power: 716
JLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond repute
Default Re: HeNe laser removing outer tube thingy :D

But now you can only use 1 he/ne at a time. Need to get another P/S.

There is also a trick to get more power out of he/ne tubes using a bunch of magnets. A member had posted the technique a while back when I was selling off some tubes, but cant find the thread.
__________________
Recent Projects:
-----
JLSE is offline   Reply With Quote
Old 04-11-2010, 11:49 PM #14
TheTeslaWarrior's Avatar
Class 2 Laser
 
Join Date: Aug 2009
Location: California, us
Posts: 404
Rep Power: 60
TheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond repute
TheTeslaWarrior TheTeslaWarrior is offline
Class 2 Laser
TheTeslaWarrior's Avatar
 
Join Date: Aug 2009
Location: California, us
Posts: 404
Rep Power: 60
TheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond reputeTheTeslaWarrior has a reputation beyond repute
Default Re: HeNe laser removing outer tube thingy :D

agreed
__________________
my wavelengths:

http://laserpointerforums.com/f43/un...0-a-56708.html
TheTeslaWarrior is offline   Reply With Quote
Old 04-12-2010, 12:25 PM #15
Class 2M Laser
 
Join Date: May 2009
Posts: 955
Rep Power: 1542
LSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond repute
LSRFAQ LSRFAQ is offline
Class 2M Laser
 
Join Date: May 2009
Posts: 955
Rep Power: 1542
LSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond repute
Default Re: HeNe laser removing outer tube thingy :D

As for running a supply without a ballast, that is not a good idea, nor is running a supply with out a tube attached. Both conditions will kill most hene supplies after a few minutes.

When in doubt start with 100K and work your way down to 47K, while monitoring the current by putting a floating voltmeter across a 1K resistor in series with the tube. A plastic cased DMM setting on a block of foam works fine. Its best to only clip on the voltmeter leads once the tube is lit and stable. Most tubes are sized for 5 to 6.5 mA anyways.

The easiest way to remove tubes is a milling machine with a end mill. If you dont have that, I find for most tubes:

The second easiest way is gently pull the end plugs so you can save the ballast resistor and see where the tube ends are. Then drill out the fill holes, and then to cut around the tube either side of where the fill holes were. When drilling the holes it helps if you use a flat end mill instead of a drill, that way it just spins on the glass if you go too deep. So you end up with a tube with bare ends and a piece of AL casing around the middle. You can then see whats holding it in the casing and use a hot wire inserted along the tube to remove the remaining silicone. Nichrome and a argon laser cathode transformer with a variac works just fine for the hot wire. Avoid the fumes though..

Steve

Last edited by LSRFAQ; 04-12-2010 at 12:32 PM.
LSRFAQ is offline   Reply With Quote
Old 04-15-2010, 11:58 AM #16
roddenberry's Avatar
Class 2 Laser
 
Join Date: Jun 2009
Location: Montreal
Posts: 365
Rep Power: 20
roddenberry has much to be proud ofroddenberry has much to be proud ofroddenberry has much to be proud ofroddenberry has much to be proud ofroddenberry has much to be proud ofroddenberry has much to be proud ofroddenberry has much to be proud ofroddenberry has much to be proud of
roddenberry roddenberry is offline
Class 2 Laser
roddenberry's Avatar
 
Join Date: Jun 2009
Location: Montreal
Posts: 365
Rep Power: 20
roddenberry has much to be proud ofroddenberry has much to be proud ofroddenberry has much to be proud ofroddenberry has much to be proud ofroddenberry has much to be proud ofroddenberry has much to be proud ofroddenberry has much to be proud ofroddenberry has much to be proud of
Default Re: HeNe laser removing outer tube thingy :D

Another trick to remove a tube that's stuck inside an asluminium tube with plain silicon is to use an old tape measure (a broken one because you'll sacrifice it) and cut a 5 or 6" lenght of the steel ribbon and cut one end in a point with 2 45 deg. bevels .

This "tool" will have a curve that will be flush with the tube so you can gently (and patiently) work your way through the silicon without exerting pressure on the tube itself.

Oh and resist the temptation of pushing on the tube with your bare finger, a fingerprint on the end mirror or aperture is never a very good thing for a laser tube. a little piece of lintless tissue or cotton will be perfect to protect the optics. Don't try to force it either (even if it moves a little bit) because enough pressure might even f**k up the optics alignement and then your tube probably won't lase anymore!

- Robert
roddenberry is offline   Reply With Quote
Reply





Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On











Loading








Green Laser Pointers by Category Blue Laser Pointers by Category Red Laser Pointers by Category
Yellow Laser Pointers by Category Violet Laser Pointers by Category Orange Laser Pointers by Category
Top Laser Pointers by Power - 1 Watt+ Top Laser Pointers by Power - 500mW+ Top Laser Pointers by Power - 250mW+
Laser Pointer Database High Power Laser Pointers Laser Pointer Diodes






Privacy Policy | Advertising Disclaimer | Terms of Use


 


All times are GMT. The time now is 01:55 AM.


Powered by: vBulletin
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO
Privacy Policy | Advertising Disclaimer | Terms of Use
Copyright (C) 2017 Laser Pointer Forums, LLC