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From: Jessica Lonkin on 12 Aug 2010 13:58
Hi!

My parents have an old 35mm slide projector that was working just
fine but recently started to melt the slides! Any slide I put into it
is projected but the slide (the film) starts to melt and crumple in
about 5
seconds.

I can hear the fan as loud as it was before, so I think the fan is
fine.

My aunt says that when the slide projector bulb gets old it gets
really
hot. Getting a replacement bulb costs more than $80.00, so I want
to be sure that this is likely to solve the problem before I order
one.

Has anyone else heard about bulbs getting super hot when they
reach end-of-life?

Thank you!
Jessica L.
From: piks11 on 12 Aug 2010 14:49
On Aug 12, 12:58 pm, Jessica Lonkin <candogeew...(a)jesusanswers.com>
wrote:
> Hi!
>
> My parents have an old 35mm slide projector that was working just
> fine but recently started to melt the slides!  Any slide I put into it
> is projected but the slide (the film) starts to melt and crumple in
> about 5
> seconds.
>
> I can hear the fan as loud as it was before, so I think the fan is
> fine.
>
> My aunt says that when the slide projector bulb gets old it gets
> really
> hot.  Getting a replacement bulb costs more than $80.00, so I want
> to be sure that this is likely to solve the problem before I order
> one.
>
> Has anyone else heard about bulbs getting super hot when they
> reach end-of-life?
>
> Thank you!
> Jessica L.

I have no idea what projector you are using, but $80.00 seems
excessive for a replacement bulb. I'd try ebay or a used equipment
dealer and look for a good working projector. Kodak Carousel
projectors work well and seem to have long lives. Used parts aren't
hard to come by. I paid $8.00 for a non-working unit just to have
access to the good parts. Plus the bulb was still good in it.

Good luck.
From: Charles E Hardwidge on 12 Aug 2010 14:55

"Jessica Lonkin" <candogeewhiz(a)jesusanswers.com> wrote in message
news:3e3e41f1-03be-45d4-9455-085f4e2c21e4(a)z10g2000yqb.googlegroups.com...
> Hi!
>
> My parents have an old 35mm slide projector that was working just
> fine but recently started to melt the slides! Any slide I put into it
> is projected but the slide (the film) starts to melt and crumple in
> about 5 seconds.
>
> I can hear the fan as loud as it was before, so I think the fan is
> fine.
>
> My aunt says that when the slide projector bulb gets old it gets
> really hot. Getting a replacement bulb costs more than $80.00, so I want
> to be sure that this is likely to solve the problem before I order one.
>
> Has anyone else heard about bulbs getting super hot when they
> reach end-of-life?

No idea but have you scanned the slides? That would be an effective backup
and the images could be displayed on a digital projector, computer display,
or television.

--
Charles E Hardwidge

From: Mort on 12 Aug 2010 20:12
Jessica Lonkin wrote:
> Hi!
>
> My parents have an old 35mm slide projector that was working just
> fine but recently started to melt the slides! Any slide I put into it
> is projected but the slide (the film) starts to melt and crumple in
> about 5
> seconds.
>
> I can hear the fan as loud as it was before, so I think the fan is
> fine.
>
> My aunt says that when the slide projector bulb gets old it gets
> really
> hot. Getting a replacement bulb costs more than $80.00, so I want
> to be sure that this is likely to solve the problem before I order
> one.
>
> Has anyone else heard about bulbs getting super hot when they
> reach end-of-life?
>
> Thank you!
> Jessica L.



Hi Jessica,

First of all, are you using the correct bulb? A bulb of higher than
rated wattage will make a lot more heat than the fan can handle.

Second of all, I found out a long time ago, that by using a variable
transformer, I can use my projector at a mildly lower voltage than the
standard (in USA) 120 volts. The bulb is thus less hot, and the slight
loss of brightness is hardly noticed. I start off with circa 80 volts,
and slowly dial up to 100-105 volts. I get less heat, and no turn-on
blowouts of the bulbs.

Having slides scanned at high-res is a good idea, albeit costly.

Good luck.

Morton Linder
From: Chrlz on 13 Aug 2010 07:10
On Aug 13, 3:58 am, Jessica Lonkin <candogeew...(a)jesusanswers.com>
wrote:
> Hi!
>
> My parents have an old 35mm slide projector that was working just
> fine but recently started to melt the slides!  Any slide I put into it
> is projected but the slide (the film) starts to melt and crumple in
> about 5
> seconds.
>
> I can hear the fan as loud as it was before, so I think the fan is
> fine.
>
> My aunt says that when the slide projector bulb gets old it gets
> really
> hot.  Getting a replacement bulb costs more than $80.00, so I want
> to be sure that this is likely to solve the problem before I order
> one.
>
> Has anyone else heard about bulbs getting super hot when they
> reach end-of-life?
>
> Thank you!
> Jessica L.

One more thing not mentioned above (or I missed it). Some (many?)
slide projectors have an IR filter glass mounted in front of the
globe. In my Rollei, there is metal frame in front of the globe into
which the filter slips - the filter is easily removed.... Check your
projector's internals to see if there might be a piece of glass
missing... The IR fliter just looks like a flat piece of glass, and I
would suspect that if it is missing, then you might get these results.
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