OE1002419 Kurt Brandstetter
- Page with pictures of my boatanchors and QSL's from Ham Radio, Broadcast and Utility stations. Over 330 DXCC countries. QSL Info Page with a lot of search engines for QSL Info servers. Broadcast and Utility QSL's.
E. H. Armstrong
- Radio's premier inventor, Edwin H. Armstrong was responsible for the Regenerative Circuit (1912), the Superheterodyne Circuit (1918), the Superregenerative Circuit (1922) and the complete FM System (1933)