Schematics
Wanbtomake,
Sorry to take so long to answer.
The best way to make connections for the batteries whether on the left or right is to look at the Brandt schematic since it is not cluttered with the transistor images. Then make your diode connections as he has shown .
Then Make the PNP transistor connections one at a time till you have all six in place.
Then install the oscillator and its connections. Connect a whatever DC motor as the load last.
All of this is IMHOP for sure.
Have previously checked on parts and where to get If you want that info.
Respectfully
Clarence
Originally posted by wantomake
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Sorry to take so long to answer.
The best way to make connections for the batteries whether on the left or right is to look at the Brandt schematic since it is not cluttered with the transistor images. Then make your diode connections as he has shown .
Then Make the PNP transistor connections one at a time till you have all six in place.
Then install the oscillator and its connections. Connect a whatever DC motor as the load last.
All of this is IMHOP for sure.
Have previously checked on parts and where to get If you want that info.
Respectfully
Clarence
It doesn't matter whether a battery terminal is labelled as 'positive' or 'negative', current is still flowing from the higher voltage potential to the lower voltage potential in these battery swapping arrangements, and completing a closed circuit from positive back to negative just like in all conventional DC circuits. 
HA! Toe Maw Toe/Tomato
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