Editing The Machine (section)

===Advancement of Technology===
A fair degree of tech has been salvaged, but very little that can be understood. Also, its likely that any of the more advanced pieces were unable to be removed, either due to size or constant function. Hence, while the machine may in fact have macrotechnic quantum diodes and other such devices, they cannot be recovered.

As such I expect that you would see very few things that didn't exist in real history until after the 1950's, but what was in existence at that time would function vastly more efficiently due to more advanced alloy, lubrication, and clockwork innovations, that simply hadn't been thought of. Engineers are too complex to be copied so we aren't going to be seeing characters with pet clockwork spiders. What we might see is something like a grappling hook gun with enough power in its clockwork to rappel someone up a sheer wall, due to an imperfect replication of some specific clockwork organ of an engineer. This doesn't mean everything is now clockwork, its very likely that the advances could also be applied to petrol engines and the like.

Certainly tanks will have progressed up on the surface as a result but this will hardly be a concern for delvers. I think with regards to what a Delver would be using, there will probably be more efficient conventional firearms than what we currently have (IE Metal storm was never invented, BUT almost all firearms have the rugged reliability you could expect from the great successes of gun history), and one or two nifty survival gadgets that wouldn't otherwise have been invented, since most ingenuity is being focused on exploration.

As OP has said in the past, you can expect delvers to have radios that can cover at least a reasonable distance within the machine.