Ohhhhhh – anybody have anything further on this, ie supplier of these units, or alternatively, how it all worked?

FB

Before you part with your hard-earned, you need to speak to Graham Adlam. He fitted a set to his Spitfire and (his words) they were crap. They are weather dependent on how well they work, they require setting up each time before use and they’re just plain fussy.

ZRX61

acetylene guns?

yes

Baz