[JMS] National - The First Ham Band Only Superhet?

[JAMES HANLON]

Don,

One could certainly obtain ham-band-only bandspread coils for the FB-7, but general coverage coils were also available for it.  Likewise, National provided bandspread on the ham bands with the HRO coils, but they also had a general coverage range.  The first National receiver dedicated solely to the ham bands was the NC-101X that came out in 1936.  

Several other ham-band only superhet receivers appear in Moore's book.  The Tobe Deutschmann Model H made in 1935-6 covered 160, 80, 40 and 20 meters.  The Ross 2B, vintage 1933, was bandswitched for any two selected ham bands, 160 to 20 meters."  The Ross Jupiter, 1934, covered 160, 80, 40, and 20, as did the Ross 4-C Special, 1935.  The McMurdo Silver Super Gainer, 1935-6, covered the 5 ham bands from 160 to 10.  M&H Sporting Goods offered their Signal Signal Superheterodyne in 1932-3 that covered 20, 40, and 80 meters.  

So I don't think you should push the claim that National made the first ham-band-only superhets.

Jim Hanlon, W8KGI