In a leatherette suitcase with handle, metal
corner protectors, a removable lid in the bottom and a
front cover that can be opened. Behind this cover are
the main controls: two thumbwheel knobs: tuning and
volume control, the wavelength switch and a switch that
can be used to temporarily illuminate the scale. This
knob is pressed when the lid is closed, which
automatically switches the power off. The wavelength
scale is situated on top of the unit, next to the
handle. The radio has three wavelength ranges: 150 to
450 KHz, 510 KHz to 1450 and 5.5 to 16.5 MHz. The radio
was first made for the Latvian market in 1940, but after
the German occupation from 1941 to 1944, the receiver
was mainly manufactured for the German Army.
With four tubes,
six tuned circuits, a push-pull amplifier and a dynamic
speaker with a diameter of 13.6 cm. The intermediate
frequency is 132 kHz.
Power supply: a 90 or 120 volts anode
battery and 3 1.5 volts batteries
(Feldelemente ENL), both placed in the lower compartment
of the receiver. The removable lid in the bottom can be
used to replace the batteries. Another version has a 2
volt lead-acid battery for the filament. In this device
a resistor is added to reduce the filament voltage to
1.5 volts. The scale lamp is 2.5 volts, 0.2 A.
The military version of this radio has a
wooden box with a metal handle. The dimensions of this
version are: 37 x 30 x 20.5 cm. The intermediate
frequency of this receiver is 469 kHz.
The radio is economical, sensitive and
selective, even under difficult conditions. The two
built-in loop antennas, one in the lid (medium wave) and
one in the back (long wave) provide good reception.
Short wave is received via an antenna connection in the
left side of the device. Recommended
antenna length: 12 meters.