No manufacturer name.
It kind of looked like a fuse element but its glass tube was intentionally open to the atmosphere.
First thought was it had something to do with the CAPAC system.
Second thought it was a heater, but it is so small it couldn't heat much of anything.
Third thought maybe if gas fumes were below decks and entered the mesh chamber the element might ignite them and in the process burn itself out and cause a warning light of some kind or disable the engine????
I like the idea of a thermionic valve, maybe I can pull one out of my Bogen amp, but Jeff might be closer with the super syncatron idea.
The best thing is...I've got one and you guys don't! Chock one up for me :d/