Modifying my nicad battery pack charger to charge nimh batts [closed]

Modifying my nicad battery pack charger to charge nimh batts [closed] I've got a battery pack for one of my peripherals that recently died, so i took it apart to find half the (nicad) cells were dead (I tested each cell's voltage both with and without a load - the dead ones dropped off to zero with load).
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Guest [Entry]

There are IC chips like the LM317 that vary the voltage to keep the current constant. But you can't do it with out building at least a small circuit. An alternative would be to put a potentiometer is series with the battery, but you would have to periodically adjust it to keep the current constant.