SAMOS (RS 1/5 UD42a - FuMB4)
 

The SAMOS superheterodyne receiver was used to detect enemy radar beams and find their location. It was used primarily for maritime service on U-boats and large battleships such as the Bismarck and the Prince Eugen. The most frequent use was on U-boats, since the detection of enemy radar predicted an eminent attack, allowing the U-boat to dive and take evasive action.

 
Specifications
 
FREQUENCY RANGE:
90 MHz - 470 MHz
NUMBER OF CRYSTALS:
PRESET FREQUENCIES:
ANTENNA:
Used with various radar-detection arrays: FuMB 4, Fu Peil A 82 a1, Fu Peil A 82 a2, Fu Peil A 82 b, Runddipolantenne "Bali I", FuMB 32 "Flores"
TUNING:(MO OR CRYSTAL)
SENSITIVITY:
SELECTIVITY:
POWER SOURCE:
220 Volts AC
SIMILAR SETS :
FAMO
POWER OUTPUT:(WATTS)
TUBES (TYPE and NUMBER):
USE:
Enemy Radar activity detection and direction finding.
TYPE OF SIGNAL:
RANGE: (MILES)
TO COMMUNICATE WITH:
TO REPLACE IN PART:
 

 
The unopened case.

 

 
Front of the case with device serial number painted on the lid.

 

 
The remains of a US military inventory tag.

 

 
The lid removed.

 

 
The manufacturer's data (wartime). This receiver was manufactured by Rhode & Schwarz.

 

 
Frequency scale and frequency band color key.

 

 
Signal strangth indicator. Bottom is search mode, while top is direction-finding mode.

 

 
From left to right: search/direction finding switch, fuses, on/off switch, power plug.

 

 
Signal amplification controls and operation modes.

 

 
The reverse of the receiver with the cover removed - very nice and clean condition.

 

 
The right side of the receiver.

 

 
The left side of the receiver.

 

 
Kriegsmarine stamp into the metal.

 

 
EF13 vacuum tube dated 1943.

 

 
Another tube dated 1943.

 

 
Another EF13 tube marked "Kriegsmarine" and dated 1943.

 

 
A 1943-dated tube also marked with the Luftwaffe "BAL" quality assurance stamp.

 

 

Mechanical cam that is either oxidized, or covered with a special coating.

 
Display light bulb.

 

 
Signal amplification switchs from reverse.

 

 
The inside of the lid with SAMOS schematic, and screwdriver to help open the four retention bolts.

 

 
Screwdriver and receiver serial number.

 

 

 

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