With all the needed items on hand today I rebuilt the BA-48 battery to power the GRC-109 receiver and eventually the GRC-9 receiver, still looking for a CD-1119 cable for the GRC-9.

This is probably the simplest way to do it using minimum soldering and purchased materials. The 9V batteries simply snap together, no holders or extra wiring, two D cells in parallel using a holder that snaps together and some hot glue and cardboard. I made an insert from cardboard to hold the batteries, there is extra space so you can add an additional 9v pack to double the capacity. The size of the BA-48 is a perfect match to re-stuff with commercial batteries.

Cardboard Insert

Battery layout

Batteries/insert installed

Final product powering GRC-109 receiver

Mark

K1HF