8mm Forum: Muray editor viewer, other model

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Topic: Muray editor viewer, other model

Luigi Castellitto
Jedi Master Film Handler

Posts: 715
From: Campobasso, Italy
Registered: Jun 2013

posted July 01, 2016 05:11 PM

I recently found a visionneuse Muray 9.5mm, the one in the picture: in excellent condition, but I made a mistake: I connected the current with the Italian voltage, 230v, and the bulb has burned out. Perhaps it required the current 110/120v about (I have a converter for this use), but I have these doubts:
1) On the plug, as you can see, it is written "250v 6a".
2) But on "extension" of the plug, a "black barrel", it is written "180". Is the tension or other?
3) Maybe it was only the light bulb to be for voltage 110v/120v, but above it only written: "55 v 0,6 A Mazda 102". "A" is for Ampere? And 55? Mazda is the brand, Ok... Ah, the bulb have a "silver" plate at side of bulb. I should another bulb, but I don't know the type.
Thank you! [Smile]

Note the difference with this similar model (which should be the "type M"), which definitely has a different type of light bulb: http://www.pathefilm.uk/95gear/95gearaccmuray2.jpg

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Dominique De Bast
Film God

Posts: 4486
From: Brussels, Belgium
Registered: Jun 2013

posted July 01, 2016 05:59 PM

Nice found, Luigi ! The voltage shown on the plug should not be taken in consideration as a plug can always have been replaced by a more recent (or from another country) model. As a rule, for safety reason, if you have any doubt, always use the lower voltage the first time (110 volts), not only to protect the apparatus or the bulb but for your own safety as you never know if it is well isolated. Don't forget all old projectors and editors are made of metal and electricity kills ! You may be hurt with 110 volts as well but from what I understood 220 volts (or 230 or 240 as it is the standard now in Europe) is much more dangerous and will not forgive. To come back to your bulb, it is probably 55volts (so there should be a transformer in your editor. I have no idea about the "180". From the picture, there seem to be the ohm symbol but I let this to specialists [Smile]

--------------------
Dominique

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Luigi Castellitto
Jedi Master Film Handler

Posts: 715
From: Campobasso, Italy
Registered: Jun 2013

posted July 02, 2016 10:17 AM

True, Dom, I was a bit 'reckless!!
I tried looking bulbs of that type, 55 volt, 0,6 Ampere, but do not find anything.
MAYBE I identified the model, BA21S, but I'm not at all sure.
Then, they are just, for example, 6 volts and 45w, 20w, 25w... the usual types very different from what is written on my bulb. And your right, Dom, on "extension" (maybe a transformer?) of plug there is Ohm symbol.
A puzzle. :| [Smile]

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Dominique De Bast
Film God

Posts: 4486
From: Brussels, Belgium
Registered: Jun 2013

posted July 02, 2016 11:06 AM

It seems it has become a hard to find bulb. Someone has discussed that (in French) here : http://retro-forum.com/viewtopic.php?t=22850

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Dominique

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Terry Sills
Phenomenal Film Handler

Posts: 1423
From: Weymouth,Dorset,England
Registered: Oct 2012

posted July 02, 2016 12:10 PM

Luigi
This looks to be a perfect project to convert the lamp to a halogen lamp or even an LED. The editor/viewer doesn't look big enough to contain an internal transformer. If it does not then you can just feed a 12v power supply from an external source for the lamp. Probably cheaper to do this than trying to find a replacement. I'm sure that I have a similar 8mm editor amongst my collection. If I can find it you are welcome to have it for cost of postage. I will have a look and see what lamp it takes.

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Luigi Castellitto
Jedi Master Film Handler

Posts: 715
From: Campobasso, Italy
Registered: Jun 2013

posted July 02, 2016 06:00 PM

Thank you all!

Dominique, useful that discussion, the light bulb it is precisely that. Too bad those stores appointed no longer have that type of bulb. But now I know exactly what I'd need.

Terry, I'm sorry, I did not understand English well: you say that I can use a halogen/LED bulb with an external power supply 12v? Yoy say that the light would be strong enough?
I have the same solution on Pathescope Ace, and is not bad...

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Terry Sills
Phenomenal Film Handler

Posts: 1423
From: Weymouth,Dorset,England
Registered: Oct 2012

posted July 03, 2016 03:27 AM

Luigi
Yes I'm sure it would be bright enough. The one I have is 8mm and similar to yours but not the same. It has a small 240 volt transformer inside that gives a 6volt supply for a 6volt bulb, so a 12volt 20 watt lamp should give plenty of brightness in yours.
If you can find a small 12 volt transformer then you could replace the one in your editor so that you will not need an external power supply.
Alternatively Classic Home Cinema have a Muray 9.5 editor that has been professionally converted by Buckingham Films but it is a bit costly at £125.

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Luigi Castellitto
Jedi Master Film Handler

Posts: 715
From: Campobasso, Italy
Registered: Jun 2013

posted July 03, 2016 07:48 AM

Ah, now I understand, Terry, thank you.
Thank you also for the shipping offer! I did not read it right!
Meanwhile, I found a shop that said he had the light bulb, but for more than 40 euro costs, excluding the cost of shipping. I already having a great 9,5mm editor viewer (a Ferquin, I have spoken in another post), If it was my ONLY viewer 9.5mm editor in my possession I would have spent that money willingly, but as a "second" visionneuse is a amount too high
However, Terry, your method is much better, I think a change with transformer and LED or halogen light is ideal, I've got some way to make this change; If I encounter any problems I will ask you for help.

[ July 15, 2016, 05:35 PM: Message edited by: Luigi Castellitto ]

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