Thanks - I knew I didn't know everything that I thought I knew...So the Vaporizer/Regulator is a Model L - cast into the side with the button. The lock off valve is a VFF 30. On top of the V/R is a solenoid with a vacuum line model 7007B. I can't find any numbers on the mixer as it is still on the lift and obscured by a couple of brackets and just tight quarters.
That large hose from the V/R to the mixer is what I can remove to get it started.
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