Is the control knob on your gas burner black with groves like this?
Does the control assembly and knob look like the above?
Yes.
I didn't have time to expand on this earlier, but if you've got the Primus made control, you should be able to mate it to a Primus Omnifuel pump, if you ever decided that you wanted/needed to. Like this:
In other words, with that fuel hose/controller, you could run your Trangia mounted burner on liquid fuels like white gasoline or kerosene. Trangia + liquid fuel burner? Talk about the ultimate cold weather snow melting machine! Keep it in mind for your next South Pole expedition.

HJ