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  1. #1

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    Meopta Opemus 6 Colour 3

    Hi, I only just joined, hope you don't mind me crashing in. I have a little query. I just acquired this enlarger cheap. Mechanically it looks fine. It's been neglected, like some spiders had made a home out of it. I gave it a good clean, plugged it in and the bulb popped immediately. Looking at it, it appears to be 12V 100w. I live in the UK by the way, so this got me thinking (always dangerous). Does this enlarger may require some sort of transformer, I'm not really sure? The manual isn't entirely explicit either. I haven't done any darkroom work in over 10 years so whilst I'm not new to the whole thing, for what it's worth I might as well be. Just wondering if anyone knows anything about this enlarger and can help save me from blowing more bulbs. And get it working!

  2. #2

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    Copy down the info on the data plate and talk it over with someone knowlegible at a real old timey hardware store (not one of those dadgum "big Box" places.)
    They should have what you need.

  3. #3
    Mick Fagan's Avatar
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    I think it does require a transformer.

    I am looking at a Meopta colour brochure which has a page on the Meopta Color 3 colour head.

    The lamp is as you say a 12v / 100 W

    At the bottom right of the A4 page it mentions and shows two transformers. The ST 100 which is a stabilised transformer and the TR 100 which is a normal transformer.

    I had the earlier Meopta colour head on my transformed Meopta 5 enlarger eons ago, I recall having a little transformer on one side of the enlarger table.

    That colour head is an excellent colour head and one with which you will be grateful for once you understand how it works.

    The neutral density filter is marvelous, I have used colour heads with this feature and always ran the ND filter midway through it's two stop range. This allowed me to go up and down in image size, whilst keeping the same exposure time, absolutely great feature.

    Mick.

  4. #4
    ic-racer's Avatar
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    You plugged "it" in. What actually did you plug in? In the US, there are no cords to 12V bulbs that fit in our 120V sockets.

    Do you have either of the 12V power supplies that were mentioned? Some european power supplies had a tap for 120v or 220v on the transformer primary.
    What is you supply voltage where you live? Does the power supply list the input voltage required.

  5. #5

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    Quote Originally Posted by ic-racer View Post
    You plugged "it" in. What actually did you plug in? In the US, there are no cords to 12V bulbs that fit in our 120V sockets.
    There is a wire that comes directly out of the Colour 3 head (which houses the bulb). I fitted a plug and stuck it in the wall! I'm no electrician so my skills in this area run very short. UK mains supply is 240v generally. Hence me thinking a transformer to step from 12v.

  6. #6

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    There are two transformers which will work; the Trafo TR100 and the RK100. I used to print with the color 3 head and used the RK100 but it did need rewiring, see here:

    http://www.apug.org/forums/forum43/6...or-3-head.html
    Steve.

  7. #7

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    Quote Originally Posted by Mick Fagan View Post
    I think it does require a transformer.

    I am looking at a Meopta colour brochure which has a page on the Meopta Color 3 colour head.

    The lamp is as you say a 12v / 100 W

    At the bottom right of the A4 page it mentions and shows two transformers. The ST 100 which is a stabilised transformer and the TR 100 which is a normal transformer.

    That colour head is an excellent colour head and one with which you will be grateful for once you understand how it works.

    Mick.
    I've been unable to find a manual for the colour 3 head so what you say sounds really interesting. I remember using a colour head back in the 90's for B&W but I hated the flat tones & low contrast it produced. I didn't know how to use it! I went back to a 'normal' enlarger with a filter draw. It will be great when I get this beast sorted. You've got me all fired up now. But still,step at a time ...

    The Opemus 6 manual lists a transformer in a very long list of accessories, giving no indication that it is a necessity. Maybe though in international sales it isn't always going to be needed. Anyway an ebay search throws up a TR100!
    http://cgi.ebay.co.uk/ws/eBayISAPI.d...m=120645680210
    Kind of looks expensive in relation to what I spent on the enlarger, but maybe that is what transformers cost. I'm going to pop in to Maplins and see if anyone there knows of a suitable off the shelf device.

    Thanks everyone for your replies. It's all very helpful.

  8. #8

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    There's actually a TR100 on ebay now with a £50 BIN, but a better way would be to buy a whole enlarger to get the unit, like the Axomat 5 which is selling for £20.;
    Steve.

  9. #9

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    Quote Originally Posted by perkeleellinen View Post
    There are two transformers which will work; the Trafo TR100 and the RK100. I used to print with the color 3 head and used the RK100 but it did need rewiring, see here:

    http://www.apug.org/forums/forum43/6...or-3-head.html
    Thanks for this, it's an interesting thread and (I suspect) soon to be very useful!

  10. #10
    hadeer's Avatar
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    Quote Originally Posted by perkeleellinen
    There's actually a TR100 on ebay now with a £50 BIN, but a better way would be to buy a whole enlarger to get the unit, like the Axomat 5 which is selling for £20.;
    It would be a good way to buy another complete set and just use the transformer, but any transformer with a capacity of 100 Watts @ 12 V will do.
    Have you seen the light..?

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