Minerva 499 SH (Siemens Hellschreiber)
 

This is a super-heterodyne receiver that was created for use with the Siemens Hellschreiber. The manufacturing style is of a civilian broadcast receiver with additional controls and circuitry for Hellschreiber integration. There is a special port on the back of the receiver that allows for Hellschreiber integration.

This is a very large set and also very heavy, weighing over 32.8 kg (72.3 lbs).

 
Specifications
 
FREQUENCY RANGE:
(MO) 170 KHz - 20.5 MHz. In 8 frequency ranges
NUMBER OF CRYSTALS:
PRESET FREQUENCIES:
na
ANTENNA:
Depends on frequency range
TUNING:(MO OR CRYSTAL)
MO
SENSITIVITY:
SELECTIVITY:
POWER SOURCE:
Alternating Current. Switchable between various utility mains voltages.
SIMILAR SETS :
Seibt ER1
POWER OUTPUT:(WATTS)
TUBES (TYPE and NUMBER):
9: EF13, ECH11, ECH11, EBF11, EM11, EBF11, EL11, EL11, AZ12
USE:
This receiver was used to monitor a wide range of radio frequencies (LW, MW and SW). It was also used to intercept Hellschreiber communications and send them to a locally connected Hellschreiber for printing.
TYPE OF SIGNAL:
Tone,voice, Hell - amplitude modulated
RANGE: (MILES)
TO COMMUNICATE WITH:
Various transmitters, and receive from a Hellschreiber
TO REPLACE IN PART:
 

 
Front view of the receiver. This extravagant unit has a magic eye on the left side of the scale window. The Hellschreiber controls are on the right.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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