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  1. #1

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    ilford 500 heads

    merry xmas all
    i am hopeing someone can answer this question. i have 2 ilford 500 300wat head , but the plug that connect them to the power unit is different by one connector, one is a flat pin the other is a round pin the book i have is for the round pin head and it states the round pin is a ground. i an wondering if one i am useing breake ( it is the round pin ) if i could just swap the end connectors and then use the other head. thanks
    mitch
    mitch brown

  2. #2
    gorbas's Avatar
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    Hi Mitch, On my Ilford 500 head connector is with 8 flat pins.
    http://www.flickr.com/photos/26983280@N00/5293537297/
    G

  3. #3
    George Nova Scotia's Avatar
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    Mine has the connector with all flat pins, it uses 2 150 lamps for a total of 300 watts. The parts manual I downloaded a while ago shows the connector with the round pin, it also shows the lamps as 300 watts each. As best I can tell there were two version of the 500. If I read your message correctly you are using the 600 watt head and power supply but the head is broken and you want to use the other head likely is the 300w version. Changing the plug might be okay in this case although I'm not sure I'd want to put the 300w lamps in the 2 x 150 head. I think I've seen mention that the 600w head has a couple extra parts for heat shielding.

    What is wrong with current head, any chance it could be fixed?

    George

  4. #4

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    I have two MG500 systems, one head utilises all-flat pins and the other has one round pin. I'll try and track down the photos.

    Tom

  5. #5
    gorbas's Avatar
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    Hi Mitch & George,
    With Ilford 500 Head you can use ether two 150W ESD or two 300W ELH lamps. Only important thing is that both lams are the same type.
    When we are on topic of connectors, did anybody try to make some kind of adapter to use common "non ilford" (like Gralab) footswitch with mini male plug to some kind of the connector to Ilford Control unit.
    Connector used by the Ilford on this products are like from NASA or Military hardware catalog?? Also placement of the connectors on the Power supply unit is rather strange??
    G

  6. #6

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    both heads work and both use ether 150 or 300 watt bulbs. i just want to make sure that i can get the spare head to work with my power supply if one breaks. btw i just got a rh designs 500 analyser and it s great. as they say spot on.
    mitch


    Quote Originally Posted by gorbas View Post
    Hi Mitch, On my Ilford 500 head connector is with 8 flat pins.
    http://www.flickr.com/photos/26983280@N00/5293537297/
    G
    mitch brown

  7. #7

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    8 flat pins is the earlier 300W version while 7 flat and one round is for the later 600w version. They had completely different controllers, but those do appear to be plug compatible. I am guessing that the change to the power supply plug was to prevent people plugging 600w heads into 300w power supplies. If you want to do it the other way around it should be fine.

    The earlier version with 500C controller


    the later version with 500CPM controller (note that the socket on the power supply is labelled "Enlarger max 600w")


    the early version of the 500H head


    hope that helps,
    Paul

  8. #8
    gorbas's Avatar
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    Paul, older Ilford Head 400 was only working with 2x150W bulbs, ILFORD Head 500 takes both - 2x150W or 2x300W!!!
    But I think you did answer to OP. One of his heads is made to be working with 500C controller/power supply and other with 500CPM.
    I'm using 500H with 500C and 500S

  9. #9

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    Yes, in my experience the older set-up does work happily with 300w globes but Ilford probably had to be more cautious in case something went wrong.

  10. #10

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    My older spec MG500 system is explicitly rated @ 600W.

    Tom

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