At home like in TV shows. Complete with sound, lights, and response timer. Up to 3 players.
http://www.nutchip.com/progetti/quiz/quiz_en.htm
http://www.ee.washington.edu/circuit_archive/circuits/F_ASCII_Schem.html#ASCIISCHEM_002
Information, pictures, and notes. By Nolan Lee.
http://www.acadiacom.net/nlee/r-1051_index.html
Details on rebuilding Collins R-390A receivers. Pictures show details of restoration, and documents are available to help you.
http://www.r-390a.us
Tools for homebrewers, including chassis punches.
http://www.radiodaze.com/tooltool.htm
http://www.mikroelektronika.co.yu/english/product/books/rrbook/rrbook.htm
Modifications.
http://www.gweep.net/~rocko/PZM/
Radio telemetry design software for terrain profiles, propagation studies and point to point radio links. Free software to download.
http://www.radio-soft.co.uk/
http://www.aaroncake.net/circuits/raindet.htm
http://www.web-ee.com/Schematics/Random_Bit_Sequence/RBS.htm