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wiux
Joined: 04 Jun 2019
Posts: 42
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 Posted: Wed Mar 31, 2021 8:50 pm Post subject: Top mounted Rangelite Help |
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I'm having a problem using the light coming out of the Rangelite: in theory everything's working, but there's no filament/double image being cast out of the rangefinder. In fact, it's a very vague & somewhat dim spot (dim compared to a camera I once inspected that had non working rangefinder, but an excellent Rangelite/lightbulb filament projection).
The rangefinder itself appears to be accurate &, as far as I can tell, there are no mirrors/lenses missing from the mechanism. I even tried swapping out lightbulbs, but to the same effect. |
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45PSS
Joined: 28 Sep 2001
Posts: 4081
Location: Mid Peninsula, Ca.
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| Posted: Wed Mar 31, 2021 9:10 pm Post subject: |
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1. look at the bulb filament. It must be center of the bulb in line with the posts it fits on. Sometimes they're off up to 45°.
2. The bulb must be focused on the transparent mirror.
http://www.southbristolviews.com/pics/Graphic/manual-pdf/TRFService.pdf
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wiux
Joined: 04 Jun 2019
Posts: 42
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| Posted: Wed Mar 31, 2021 10:15 pm Post subject: |
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Hmm, upon closer inspection, it seems I might be missing a part (presumably a lens) near the mirror.
https://imgur.com/a/WHzwIqZ
I'm also not completely sure what you mean about the bulb filament being in line with the posts, & I'm also unsure how to focus the bulb on the mirror (by moving it closer/farther?)[/img] |
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45PSS
Joined: 28 Sep 2001
Posts: 4081
Location: Mid Peninsula, Ca.
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| Posted: Wed Mar 31, 2021 10:55 pm Post subject: |
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| Quote: | | I'm also not completely sure what you mean about the bulb filament being in line with the posts |
In your picture note the two arms inside the bulb. The filament should be straight across them in the center of the globe not leaning up or down.
| Quote: | | I'm also unsure how to focus the bulb on the mirror (by moving it closer/farther? |
Note that the bulb retainer and center contact are not fixed. Move the bulb in or out as needed to get a sharp filament image on the mirror in the housing cover.
That wood block will not illuminate a light bulb.
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wiux
Joined: 04 Jun 2019
Posts: 42
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| Posted: Wed Mar 31, 2021 11:04 pm Post subject: |
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| 45PSS wrote: | | That wood block will not illuminate a light bulb. |
But it was working so well so far, haha
Thanks for clarifying. Can you confirm whether I'm missing a part? The schematic in the link was reproduced a bit too dark to make out. A quick repositioning of the bulb didn't seem to change much, unfortunately. |
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45PSS
Joined: 28 Sep 2001
Posts: 4081
Location: Mid Peninsula, Ca.
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| Posted: Wed Mar 31, 2021 11:26 pm Post subject: |
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No you are not missing parts.
Positioning the bulb is trial and error, use small amounts at a time.
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wiux
Joined: 04 Jun 2019
Posts: 42
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| Posted: Wed Mar 31, 2021 11:48 pm Post subject: |
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Are you quite sure? In this picture of someone else's rangefinder there appears to be a lens of some sort in the housing near the mirror & lightbulb that's missing in mine.
Unfortunately, the only spare top rangefinder listed on eBay also seems to be missing that lens. |
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45PSS
Joined: 28 Sep 2001
Posts: 4081
Location: Mid Peninsula, Ca.
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| Posted: Thu Apr 01, 2021 12:20 am Post subject: |
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| Quote: | | Are you quite sure? In this picture of someone else's rangefinder there appears to be a lens of some sort in the housing near the mirror & lightbulb that's missing in mine. |
Good eye, I missed that.
Rangelight Housing #10 - lens rangelite. Pdf page 11.
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