[Milsurplus] S-20 as code practice radio

[Hubert Miller]

One correction to the photos: that wouldn't be an RBK ( vhf ) that they were using to copy Fox. More likely some model of shortwave Hallicrafters I don't want  to take a guess at.
Also, the site where the Ecophones were being used was a USAAF school. 
-Hue 

>Hue wrote:  "For "general" training, such as CW practice, I am guessing the military used less expensive radios, such as Halli S-20's"
I'm not going to say that didn't happen, but most code practice wasn't even over a radio.  That said, even the school for black sailors used better stuff than that for training on live broadcasts:
http://www.virhistory.com/navy/flory/id9.html
RF