Fu. He. u1

(direction finding receiver)

A well constructed, battery-operated 9-tube, heterodyne receiver of cast "Elektron" alloy. A rotation turret of intricate design carries the R-F and oscillator coils -- 4 sets of 4 coils each shielded by a lightweight die-cast "can". Iron-core inductances are used in antenna and plate coils. Variable ceramic capacitors provide parallel trimming. The contacts are not the brush types; instead, along cam furnishes pressure to contact fingers.

 
Specifications
 
YEAR INTRODUCED :
1943
   
MANUFACTURER: Hagenuk
   
FREQUENCY RANGE:
(Mc) 0.5-25.0 in 5 bands
NUMBER OF CRYSTALS:
None
PRESET FREQUENCIES:
None
ANTENNA:
Fu.N.P.Ger.u1 or Fu.Np.E.a/c
TUNING:
(MO OR CRYSTAL) MO. The tuning dial has a graduated scale calibrated to kilocycles whose color codes agree with those of the band switch.
SENSITIVITY:
na
SELECTIVITY:
na
POWER SOURCE:
Two-volt "A' battery and 90-volt "B" battery housed in the upper part of the receiver case.
SIMILAR SETS
Fu.HE.c, Torn.E.b, BC-312, SCR-244, AN/GRR-3(SX-28)
POWER OUTPUT:
TUBES (TYPE and NUMBER):

9 x RV 2 P 800 (pentodes)
USE:
For intercept purposes and direction finding.
TYPE OF SIGNAL:
CW, tone and voice.
RANGE: (MILES)
TO COMMUNICATE WITH:
5 W.S. and 30W.S.a transmitters
TO REPLACE IN PART:  
   
TRANSPORTATION:
Pack, plane or vehicle
 

 
The receiver with the cover off.

 

 
The typical 90 Volt anode battery with one of the two external power sockets.

 

 
Typical 2 Volt filament battery.(2B38)

 

 
Data plate, frequency range switch, fine-tuning knob and bandwidth control knob. This receiver, although manufactured in 1944, was made from aluminum and other high quality "strategic" materials reserved for aircraft and tanks.

 

 
The POWER / MONITORING / DIRECTION FINDING switch.

 

 
A better view of the fine-tuning and bandwidth controls.

 

 
Voltmeter and headphone connector, also the calibration button.

 

 
From top to bottom: standard antenna connector, ground connector, direction finding antenna connector.

 

 
The beautiful scale of the receiver.

 

 
Cover removed - rear of the receiver. Someone has marked power pins.

 

 
Calibration crystal???

 

 
Closeup of the rear power socket.

 

 
The left-side power socket, along with two headphone jacks.

 

 
Top of the receiver - cover off. Note the amazingly intricate and precise construction.

 

 
Side view of the receiver showing the coil turret drum and the tuning capacitor.

 

 
A closeup of the coil turret drum.

 

 
Inside the case, showing the detail of the battery power connector.

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