Problem with MAX756 Boost converter
The app note shows that the minimum input voltage is 2 volts but you are attempting to power it with 1.5 volts.

The selection of the inductor and capacitor is quite critical to the operation. Look at page 6 for recommended suppliers and part families.

Your AA cell has an internal resistance and limited energy capacity. You should monitor the input voltage to your switcher to make sure the cell is holding up. Take note that the best efficiency for this boost converter is about 80% with proper component selection.

Building a switcher supply on a protoboard is never a good idea. With the high currents and high frequencies involved, the protoboard introduces too many strays. Dead bug / Manhattan style construction on a solid ground plane is a better approach.