It would be hard to build a tube radio smaller than this miniature,
110-125volt, 3 tube, white plaskon radio made by Spain's Cradial Radio in 1957.
It included an encased, external voltage dropping resistor,
in place of a "curtain burner" resistance power cord used in many designs.
The model Pulgarcito Super II measures only 4 1/2 inches wide.
"Pulgarcito" translates to "Tom Thumb" in Spanish.
An Italian version, the ERA "Gnomo" and a French version, "Le Gnome" are also found.
The Gnomo circuit design was much different than the Pulgarcito,
with a 2-tube chassis and a selenium rectifier. The dial was on the opposite side.
The side-by-side photo shows the Gnomo is slightly smaller, an 1/8" shorter than the Pulgarcito.
They are well-built, beautifully designed radios.
The Italian "Gnomo" is slightly smaller than the Spanish "Pulgarcito" above.
It has a 2-tube chassis adjustable for different source voltages also made mid-'50s.
Both versions use permeability tuning in place of the traditional tuning capacitor.
The photos below show the dial string attachments to the dial pointer and the
ferrite slugs inside the tuning coils, one on top and one inside the chassis.
The right knob controls the tuning and the left side dial pointer.
(Maximize window for a closer look)
Le Gnome (France)
The radio was also licensed for production in France using the "Gnome" name.
It appears identical to the Italian Gnomo,
although the back cover has no antenna jack indication.
This example was found with the original leather carrying case.
ERA "Gnomo"
,
French 
"Gnome"
Cradial "Pulgarcito Super II"
