kleinbl00: declassified Sputnik radio schematics sounds like your kinda thing.
If you want something translated from Frank's writeup in the magazine, lemme know. :)
Fran Blanche built a sputnik beeper according the schematics that were provided for the Royal Society's scale model (with some minor tweaks).
Here's the plans for it, for free!!
Edit: here's Hackaday's article on it!