Featured Documents


Some of My Presentations



The Truth about Tesla


The Progress of Science
If you really want to understand something, have Edwin Armstrong explain it to you.


WWI - Wireless in the AEF


Radio Corporation of America


1921 Apparatus Catalog

RCA Apparatus Catalog

RCA Apparatus Catalog - 1 Sep 1921 (28 MB)

RCA Apparatus Catalog - 1 Sep 1921  (Lo-Res 8.4 MB)

1944 Russian Sales Pitch - A comprehensive catalog of RCA communications equipment.



RCA_Russian_Catalog.pdf      (Hi-Res 27 MB)

RCA_Russian_Catalog_lo-res.pdf    (Lo-Res 8 MB)


Other Documents

Signal Corps Radio Photos - 1943    (51 MB)

This is a very rare  document from the InfoAge Library that contained actual photographs.



Radio Frequency Laboratories - 1929


Army Mystery Ray in October 1935 Popular Science