Collectors
The Maximum Drive Potential Table on p.338 shows a Potential-1 Collector as available at TL14 (with increasing Collector-Potential listed for increasing TLs, of course).
However, on the Tech Level Charts on p. 504, Collector Technology is listed as a TL18 development.
My intuition (based on several other puzzling discrepancies on the TL Chart) is that it is the TL Chart that is in error, not the Drive Potential Table in the Starship Construction section.
The Maximum Drive Potential Table on p.338 shows a Potential-1 Collector as available at TL14 (with increasing Collector-Potential listed for increasing TLs, of course).
However, on the Tech Level Charts on p. 504, Collector Technology is listed as a TL18 development.
My intuition (based on several other puzzling discrepancies on the TL Chart) is that it is the TL Chart that is in error, not the Drive Potential Table in the Starship Construction section.