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  1. Re: Converting my Omega D-2 enlarger to LED illumination

    I didn't notice that they had started selling coloured COBs. Has anyone looked at simply replacing the halogen/dichroic-filter pairs in a Ilford multigrade head? Means all the controllers, etc, will...
  2. Re: Converting my Omega D-2 enlarger to LED illumination

    Oslolens: With a constant-voltage supply, the biggest issue is how part-to-part Vf variation will impact current sharing. In the I/V curve Bernice provided you can see a two-fold variation in current...
  3. Re: Converting my Omega D-2 enlarger to LED illumination

    Since everyone is piling on, I'll just note that 36W at 110V is actually 300mA, not 3A, and Ohm's law doesn't really apply since this is a non-linear circuit.

    But my real question is: do you...
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    Re: Help me with Paint

    Instead of chest corners, perhaps what you're after are the corners for road cases, which are definitely heavy duty.
    There are plenty of DIY road case suppliers on the interwebs (and maybe even one...
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    Re: How to obtain a Dynatect bellows.

    Yes, thanks Neal!
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