Does Positron make power supply cards that fit the full size slots of the shelves?
Positron used to make a 7501-35 card that would power circuit cards within the older and the newer version of the 3, 5 and 8-card shelves. In order not to waste a circuit slot, in the 5 and 8-card shelves, the 751313, 751316 and 751324 power supplies should be used in the dedicated slots of the shelves, which do not waste a full size circuit slot. Because the 3-card shelf does not have the dedicated power supply slot, an external power supply to the shelf should be used.