Uniroller 352 (auto reversing) base and unicolor 8x10 paper drum plugged into a Gra-Lab timer. load it in the dark, process with lights on. Four sheets (4x5) at a time. 300 ml. of dev.
Available on the auction site for cheap. My whole set up under $50.
Do a search here and on $-bay.
Not as cheap as trays but for me... easier and no problems.
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