De-Wald Model 440 Mantel Radio (1934)
This small ac/dc powered radio covers the standard
broadcast band. It is a tuned-radio-frequency (TRF)
model using 4 tubes:- 6D6 (RF amp), 6C6 (2nd
detector/AF amp), 43 (AF output pentode) and 12Z3
(rectifier). A resistance line cord serves to establish
the correct filament voltages.
The casing consists of wooden sides with repwood
panels glued to them. The panels were formed by
pressing a special wood-paste into a mold to give the
intricate "carved" appearance. The exact process
used was unfortunately poorly documented and as a
result is today the subject of some conjecture.
I found this radio at a flea market. When I first saw it I
passed on it, since I wasn't familiar with the radio and
it appeared that a small piece was missing from the
lower center front (the small opening evident in the
photo). Later, upon arriving home I did some quick
research and discovered that the missing piece was
nothing more than a small plastic screen with the
name De Wald written on it, illuminated from behind
by the pilot lamp. I figured this would be easy to
replicate (though I haven't attempted it yet) so I drove
back to the flea market. The radio was still there & this
time I bought it. The photographs show it as found.
broadcast band. It is a tuned-radio-frequency (TRF)
model using 4 tubes:- 6D6 (RF amp), 6C6 (2nd
detector/AF amp), 43 (AF output pentode) and 12Z3
(rectifier). A resistance line cord serves to establish
the correct filament voltages.
The casing consists of wooden sides with repwood
panels glued to them. The panels were formed by
pressing a special wood-paste into a mold to give the
intricate "carved" appearance. The exact process
used was unfortunately poorly documented and as a
result is today the subject of some conjecture.
I found this radio at a flea market. When I first saw it I
passed on it, since I wasn't familiar with the radio and
it appeared that a small piece was missing from the
lower center front (the small opening evident in the
photo). Later, upon arriving home I did some quick
research and discovered that the missing piece was
nothing more than a small plastic screen with the
name De Wald written on it, illuminated from behind
by the pilot lamp. I figured this would be easy to
replicate (though I haven't attempted it yet) so I drove
back to the flea market. The radio was still there & this
time I bought it. The photographs show it as found.
Copyright TubeRadioLand.com
 | |  | |  | |  | |  | |  | |  | |  | |  | |  | |  | |  |
..4-tube high-gain universal. The biggest value ever packed into a midget radio set.
more..