[Milsurplus] BC-222

[Hue Miller]

If you look at the  BC-222 ( p/o SCR-194 ) in the context of vhf 
exploration in the last half of the 1930s, including ham 5-meter
activity, with many articles in the radio mags on 1 & 2 tube
transceivers, you will see that the -222 is not so unusual, but
squarely in tune with  developments in radio.
Japan and Germany certainly developed portable radios along
similar lines, but unlike the US, they used such basic radios in
combat use thru WW2. I mean superregen receivers with free
running transmit oscillator. UK, Italy, and USSR i don't know
anything about. 
-Hue Miller