Don't worry about it most complex circuits these days are in chips so not even electrical engineers know much about how to build one.
Unless you build chips for a living it's very unlikely you could build anything to the level of a laptop from today not to mention you need to build the lab/clean room to manufacture the chips.
Technically if you know how the chip worked you could reproduce it with 1975 tech but it would be as large as hell.
The best thing you could do is guide their research in the right direction since you already know the way and you could get them there quicker.
I'm an EE and can confirm this. An EE who does something other than microelectronics can generally understand how those circuits work, but is generally unable to design a non-trivial one.
Unless you build chips for a living it's very unlikely you could build anything to the level of a laptop from today not to mention you need to build the lab/clean room to manufacture the chips.
Technically if you know how the chip worked you could reproduce it with 1975 tech but it would be as large as hell.
The best thing you could do is guide their research in the right direction since you already know the way and you could get them there quicker.