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  1. Replies
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    Re: Heathkit Darkroom timer revealed glory!

    210895


    Hi Paul Ron,
    I now have the complete manual for the PT-1500. I purchased one from England & it showed how to convert from 120v to 240v by switching some jumpers, but I couldn’t see...
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    22,760

    Re: Heathkit Darkroom timer revealed glory!

    I think you are right. I think I am just trying to get perfection when it's not necessary. What you suggest (in using 'pseudo-seconds') works fine. I do have an old exposure computer, which gives a...
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    22,760

    Re: Heathkit Darkroom timer revealed glory!

    Yep Bob, you are right. I eventually received the manual, & it didn't take long to convert the transformer to run on 240V, but the 50hz / 60hz issue is real. Like you said, it is running about 20%...
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    68
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    22,760

    Re: Heathkit Darkroom timer revealed glory!

    I have just bought the PT1500 Heathkit darkroom timer. It was previously used in the USA. As I’m in Australia, I need to convert it to run on 240V. I have found a manual on EBay UK & the seller has...
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