Here are another couple of low output regulators(single stage) that may interest people from NZ/Aus, as our tanks have different connectors.

https://www.nichegas.com.au/product/...en-601ed-4-o2/
https://www.nichegas.com.au/product/...-601e-1-5-lpg/

Just in contact with them now and apparently the oxy reg has a max output of 100kpa, that would be more than enough for brazing?
They also sell connection adaptors to be able to use American torches and hoses.