I love that ads in the back. In particular, look at page 446: HRO receiver from National. This radio was picked up by the military for world war II and remain

I love that ads in the back. In particular, look at page 446: HRO receiver from National. This radio was picked up by the military for world war II and remained in production for 29 years: http://www.cryptomuseum.com/df/hro/ http://www.cryptomuseum.com/df/hro/ http://www.radioblvd.com/National%20HRO.htm http://www.radioblvd.com/National%20HRO.htm