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Re: [OM] [OT] Electrical Part Help

Subject: Re: [OM] [OT] Electrical Part Help
From: "Wiliam Wagenaar" <wiliam@xxxxxxxxx>
Date: Wed, 19 Nov 2008 20:49:53 +0100
Speaking of the LSD lamps, there is one on sale right now Marktplaats, a
Dutch auction site (also bought by ebay btw)

http://link.marktplaats.nl/209366682

Asking price is € 20,-. Seems very low to me.

No affiliation whatsoever to the seller.

Wiliam

> -----Oorspronkelijk bericht-----
> Van: Frank van Lindert [mailto:Frank@xxxxxxxxxxxxx] 
> Verzonden: woensdag 19 november 2008 20:44
> Aan: Olympus Camera Discussion
> Onderwerp: Re: [OM] [OT] Electrical Part Help
> 
> 
> Charlie,
> 
> I take it that your light is 6 volt 20 watt? 
> 
> In that case you cold replace the regulator by any other 
> brand 6 volt one. Olympus made them too, for use with their 
> microscopes and with their OM-LSD lamps... 
> http://olympus.dementia.org/eSIF/om-sif/macrophotogroup/lsd.htm
> 
> Of course you should wire the regulator (kind of transformer) 
> directly to the light inside your microscope or lighthouse.
> 
> If you can find any halogen lamp regulators they will do a 
> nice job to, as long as they are intended for 6 volt (most 
> are for 12 volt!). 
> One I found and which can be ordered for 6 volt is here: 
> http://www.geneq.com/catalog/en/dimmer_c_> 100w.htm
> 
> I remember 
> that in the early days of household 
> halogen lighting there were some 6 volt dimmers around too. 
> Nowadays everything is for 12 volt or for 110/220 volt 
> directly from the wall outlet. Maybe you can still find some 
> of the old ones?
> 
> Good luck iwhen searching,
> 
> Frank van Lindert
> Utrecht NL.
> 
> Wed, 19 Nov 2008 13:13:02 -0500, "Charles Geilfuss" 
> <charles.geilfuss@xxxxxxxxx> wrote:
> 
> >Greetings All,
> >   I know there are a few people on the List knowledgable about all 
> >things electrical, so I am hoping I can get some advice. I have a 15 
> >year old Leitz Laborlux S microscope that I use daily. The rheostat 
> >(potentiometer) controling the light source is going bad. The light 
> >will flicker and does not adjust smothly in some of its 
> range. Visual 
> >inspection of the part shows wear on the surface of the 
> coil. Cleaning 
> >with De-Oxit did not help. I'm planning to replace the part 
> but Leitz 
> >no longer carries parts for this model and my efforts to find an 
> >original part have been fruitless. There are plenty of 
> potentiometers 
> >available form electrical parts companies, but how do I 
> determine what 
> >specifications I need. The scope uses a 6 Watt, 20 Volt bulb and of 
> >course plugs into a 110 Volt wall outlet. Any advice?
> >
> >Thanks,
> >Charlie
> -- 
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