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 > Buy, Sell, & Trade



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



Reply
 
LinkBack Thread Tools Display Modes
Old 09-05-2010, 04:37 PM #1
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
Question FS - Searching a home for a pair of Lasos 7890A argon heads

Hi, dusting off some centimeters of dust from my shelf, i found back a box containing a pair of Ar-Ion heads, Lasos model 7890A.

Those units have a sad story on their shoulders ..... they came from a set of 6 old Agfa D-LAB units, that was trashed almost 2 years ago from a big photo company ..... the sad part was that the peoples that trashed them, had already mangled and smashed almost all the units before i found them, including a lot of very professional optics, just for recycle the metals , so i got to save only 3 tubes and one PSU (no remote nor anything other, they wasted also the fiber optic cables cutting them for see if they was copper, damn them) ..... i already sold one of them with the PSU a year ago, so now i have these 2 doing nothing other than rest in a box collecting dust on that shelf.

I took some quick pics of one of them (i was in hurry), if someone want more specific pics, just ask, and i post them in the next days.

I don't know too much about this specific model, only that are multiline "glass bell" units with main tuning on 514nm, and that was produced specifically for Agfa D-LAB serie (a digital printing photolab) ..... they was made for stability, more than for power, so probably you can't get too much from them, maybe 10 or 12mW, mainly in the 514nm wavelenght (if i recall correctly, the 454 / 457nm part was barely 2 mW, and the rest also less) ..... They have their original cable and fan, and over the shutter slider, at open aperture, there's a second slider with an empty hole and a second hole with a polarizer filter in it (in the minilabs they was used with the polarizer in the path, probably without it, you can get some more power, but i don't have a compatible PSU, so cannot test anything) ..... the last time i tried them, before sell the one with the PSU, they was working, but consider that now is at least a year that they don't become turned on ..... does some gas laser expert (*cough*Dave ?*cough* ..... ) know what they can worth without the PSU, actually ? ..... and also, there is someone interested to buy one of them ?

Please consider that i'm in Italy ..... i can ship oversea, but shipping oversea from here can be a real pain you-know-where, for shipping fees with this weight ..... anyway, i'm cleaning up my messy shelfs (i just realized i have too much lasers around ), so probably in the next weeks some other things can pop up for sale .....
Attached Thumbnails
FS - Searching a home for a pair of Lasos 7890A argon heads-7890a-01.jpg   FS - Searching a home for a pair of Lasos 7890A argon heads-7890a-02.jpg   FS - Searching a home for a pair of Lasos 7890A argon heads-7890a-03.jpg   FS - Searching a home for a pair of Lasos 7890A argon heads-7890a-04.jpg  


__________________
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







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







Old 09-05-2010, 06:24 PM #2
Prototype's Avatar
Class 3B Laser
 
Join Date: Jun 2009
Posts: 2,712
Rep Power: 107
Prototype has a reputation beyond reputePrototype has a reputation beyond reputePrototype has a reputation beyond reputePrototype has a reputation beyond reputePrototype has a reputation beyond reputePrototype has a reputation beyond reputePrototype has a reputation beyond reputePrototype has a reputation beyond reputePrototype has a reputation beyond reputePrototype has a reputation beyond reputePrototype has a reputation beyond repute
Prototype Prototype is offline
Class 3B Laser
Prototype's Avatar
 
Join Date: Jun 2009
Posts: 2,712
Rep Power: 107
Prototype has a reputation beyond reputePrototype has a reputation beyond reputePrototype has a reputation beyond reputePrototype has a reputation beyond reputePrototype has a reputation beyond reputePrototype has a reputation beyond reputePrototype has a reputation beyond reputePrototype has a reputation beyond reputePrototype has a reputation beyond reputePrototype has a reputation beyond reputePrototype has a reputation beyond repute
Default Re: FS - Searching a home for a pair of Lasos 7890A argon heads

How long would you say these have been on your shelf?
__________________
Quote:
Originally Posted by MoonShad0w
No, bird, do not bite my F7 key off
Prototype is offline   Reply With Quote
Old 09-05-2010, 06:47 PM #3
Class 4 Laser
 
Join Date: Nov 2008
Posts: 5,728
Rep Power: 547
ElektroFreak has a reputation beyond reputeElektroFreak has a reputation beyond reputeElektroFreak has a reputation beyond reputeElektroFreak has a reputation beyond reputeElektroFreak has a reputation beyond reputeElektroFreak has a reputation beyond reputeElektroFreak has a reputation beyond reputeElektroFreak has a reputation beyond reputeElektroFreak has a reputation beyond reputeElektroFreak has a reputation beyond reputeElektroFreak has a reputation beyond repute
ElektroFreak ElektroFreak is offline
Class 4 Laser
 
Join Date: Nov 2008
Posts: 5,728
Rep Power: 547
ElektroFreak has a reputation beyond reputeElektroFreak has a reputation beyond reputeElektroFreak has a reputation beyond reputeElektroFreak has a reputation beyond reputeElektroFreak has a reputation beyond reputeElektroFreak has a reputation beyond reputeElektroFreak has a reputation beyond reputeElektroFreak has a reputation beyond reputeElektroFreak has a reputation beyond reputeElektroFreak has a reputation beyond reputeElektroFreak has a reputation beyond repute
Default Re: FS - Searching a home for a pair of Lasos 7890A argon heads

No matter.. if they're gas-intact hitting them with a oudin or tesla coil (if you have access to one or the other) will likely get them to fire if they've sat too long.. It might take a few tries, but it's been known to work. Once you run them for awhile they should be easier to start. Those tubes look like they're in nearly new condition, if not new.
__________________
Laser Resources (for n00bs and veterans alike!)

Sam's Laser FAQ (The Laser Bible)

http://www.repairfaq.org/sam/laserfaq.htm

RP Photonics Encyclopedia of Laser Physics and Technology

http://www.rp-photonics.com/encyclopedia.html

ULTIMATE DIY PROJECTOR REFERENCE

http://nqlasers.com/scannerreference...itle=Main_Page

SUCCESS is the best revenge.

Last edited by ElektroFreak; 09-05-2010 at 06:49 PM.
ElektroFreak is offline   Reply With Quote
Old 09-06-2010, 12:35 PM #4
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: FS - Searching a home for a pair of Lasos 7890A argon heads

I looked inside and there's a 10.000 hours mercury time-counter, it say 5000 hours (but it's connected to the fan, not to the tube, so it just mean that the fan was powered for 5000 hours, and the fan was probably always on, also when the tube was not in use, in the minilab, so i have no ways for know how much really the tube itself was used).

In the meantime, i have found some other informations about these tubes, in internet ..... they was rated for work at 10mW of 514nm, with a secondary emission of 4mW in the 454/457nm, with polarized emission ..... also if the sticker on the tube say "max 200mW" of power ..... i'm not sure if this is related to the maximum power that the tube can handle, or if is a generical indication, i only know from documents found on internet that the 7890A Rev.01 units was specifically produced for the minilabs Agfa D-LAB.2, .2+, .3, and Kodak RP30, and that they was regulated for emit a total of 14mW in the minilabs ..... maybe they was using a high power tube in low power mode for have more emission stability in time ? ..... not sure about this, anyway, so i consider them 14mW units, independently from that what the sticker say.

As i've said, the last time i've turned them on, was almost a year ago, and all the 3 was working ..... then i sold one with the PSU, and from that time, i had no ways for use them again, so they remained in the box unused ..... i know that argon tubes needs some periodical firing for keep the efficence, but don't know if a year stored can have caused any degradation.

I don't have a tesla coil at the moment, but i can easily build a low current HV unit in the next days and try to see if they fire up ..... and yes, they looks almost new, they was closed in the box and not got too much dust.



EDIT: just found this datasheet for the 7890 serie, is the more complete that i've found til now.
__________________
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.

Last edited by HIMNL9; 09-06-2010 at 12:50 PM.
HIMNL9 is offline   Reply With Quote
Old 09-06-2010, 03:47 PM #5
diachi's Avatar
Class 4 Laser
 
Join Date: Feb 2008
Location: Yellowknife, NT, Canada
Posts: 7,998
Rep Power: 36221
diachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond repute
Send a message via Skype™ to diachi
diachi diachi is online now
Class 4 Laser
diachi's Avatar
 
Join Date: Feb 2008
Location: Yellowknife, NT, Canada
Posts: 7,998
Rep Power: 36221
diachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond repute
Send a message via Skype™ to diachi
Default Re: FS - Searching a home for a pair of Lasos 7890A argon heads

How much are you wanting for one? I've *always* wanted an argon with a glass bell, just so I can see the plasma glowing!
__________________


405nm | Banggood LT-850 | "5mW" | Review Unit | Review WIP
445nm | Sanwu Laser Pocket Series | 400mW Metered
445nm | NDB7242E Pen Build | 60mW Metered | >>Build Thread<<
450nm | LaserPointerStore - Thor H2 | 1W(?) | Review Unit | >>Review<<
488nm | Spectra Physics 163 Argon | ~30mW Metered
515nm | PL515 Pen Build | 50mW Metered | >>Build Thread<<
520nm | Laserlands 520 | 5mW | Review Unit | 3mW metered | >>Review<<
532nm | Gearbest 303 Pointer | 50mW Metered
532nm | Gearbest JD-850 Pointer | 30mW Metered (I think, need to re-test).
633nm | HeNe | 6mW
633nm | Spectra Physics 155 HeNe | <1mW >>Thread<<
650nm | Sanwu Laser Pocket Series | 200mW Metered
808nm | Melles Griot 532nm Lab Unit | No Crystals >10W | X2



Check out my Reddit Subreddit! >>/r/laserpointers<<

diachi is online now   Reply With Quote
Old 09-06-2010, 03:53 PM #6
Prototype's Avatar
Class 3B Laser
 
Join Date: Jun 2009
Posts: 2,712
Rep Power: 107
Prototype has a reputation beyond reputePrototype has a reputation beyond reputePrototype has a reputation beyond reputePrototype has a reputation beyond reputePrototype has a reputation beyond reputePrototype has a reputation beyond reputePrototype has a reputation beyond reputePrototype has a reputation beyond reputePrototype has a reputation beyond reputePrototype has a reputation beyond reputePrototype has a reputation beyond repute
Prototype Prototype is offline
Class 3B Laser
Prototype's Avatar
 
Join Date: Jun 2009
Posts: 2,712
Rep Power: 107
Prototype has a reputation beyond reputePrototype has a reputation beyond reputePrototype has a reputation beyond reputePrototype has a reputation beyond reputePrototype has a reputation beyond reputePrototype has a reputation beyond reputePrototype has a reputation beyond reputePrototype has a reputation beyond reputePrototype has a reputation beyond reputePrototype has a reputation beyond reputePrototype has a reputation beyond repute
Default Re: FS - Searching a home for a pair of Lasos 7890A argon heads

Damn, 230VAC.
__________________
Quote:
Originally Posted by MoonShad0w
No, bird, do not bite my F7 key off
Prototype is offline   Reply With Quote
Old 09-06-2010, 04:01 PM #7
diachi's Avatar
Class 4 Laser
 
Join Date: Feb 2008
Location: Yellowknife, NT, Canada
Posts: 7,998
Rep Power: 36221
diachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond repute
Send a message via Skype™ to diachi
diachi diachi is online now
Class 4 Laser
diachi's Avatar
 
Join Date: Feb 2008
Location: Yellowknife, NT, Canada
Posts: 7,998
Rep Power: 36221
diachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond repute
Send a message via Skype™ to diachi
Default Re: FS - Searching a home for a pair of Lasos 7890A argon heads

You can either use a step up transformer or find a PSU that is 110VAC. I *think* ( been a while since I've been around much ) that a JDSU 2211/4 PSU will drive one of these as long as you keep Itube at 8A or less.
__________________


405nm | Banggood LT-850 | "5mW" | Review Unit | Review WIP
445nm | Sanwu Laser Pocket Series | 400mW Metered
445nm | NDB7242E Pen Build | 60mW Metered | >>Build Thread<<
450nm | LaserPointerStore - Thor H2 | 1W(?) | Review Unit | >>Review<<
488nm | Spectra Physics 163 Argon | ~30mW Metered
515nm | PL515 Pen Build | 50mW Metered | >>Build Thread<<
520nm | Laserlands 520 | 5mW | Review Unit | 3mW metered | >>Review<<
532nm | Gearbest 303 Pointer | 50mW Metered
532nm | Gearbest JD-850 Pointer | 30mW Metered (I think, need to re-test).
633nm | HeNe | 6mW
633nm | Spectra Physics 155 HeNe | <1mW >>Thread<<
650nm | Sanwu Laser Pocket Series | 200mW Metered
808nm | Melles Griot 532nm Lab Unit | No Crystals >10W | X2



Check out my Reddit Subreddit! >>/r/laserpointers<<

diachi is online now   Reply With Quote
Old 09-06-2010, 05:02 PM #8
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: FS - Searching a home for a pair of Lasos 7890A argon heads

I'm trying to find a "hobbyst" quotation for these units ..... don't want to throw them away, but also don't want to ask exagerate cyphers .....

Any gas laser experts that know how much can worth this particular tube, without PSU ?
__________________
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
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


LinkBacks (?)
LinkBack to this Thread: http://laserpointerforums.com/f39/fs-searching-home-pair-lasos-7890a-argon-heads-55261.html
Posted By For Type Date
Alabamass pictures: agfa d lab This thread Refback 02-28-2011 08:34 AM










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 07:17 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