"I think... that might be what I was looking for."

Mary hurries to grab her own notebook, and close to the start of it, she opens it onto several drawings of the receiver, with notes on the different semiconductors for crystal-to-crystal setups. She sets it out for Tarantulas to see, turning the pages a few times so he can see the various drawings and notes she's done.

"This... I've mostly been working from memory. I hope it makes sense. Maybe you can tell if it would work."