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E.F. Johnson Viking Mobile

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Desktop Shortwave Transmitter

The Viking Mobile is crystal controlled, and was sold as a an under-dash mobile transmitter in the 1950s. It uses seven vacuum tubes with an 807 final amplifier, modulated by a pair of push-pull 807s. It uses an external dynamotor power supply, and yes, the rare companion dynamotor is included with this transmitter. It supplies 400V and 800V DC for the transmitter. This unit is either factory wired, or it was done as a kit by an expert.
New price 1952 in the US: $99.50

Specifications
Type
Desktop Amateur HF Transmitter 
Frequency range RX
TX
80/20/10 m 
Frequency stability
Tuning steps
Filters
Receiver
Modulations
Sensitivity
Selectivity
Receiver system
IF-frequencies
Image rejection
Audio output
Transmitter
Modulations
AM 
RF-output
30-60 W 
Connections
Antenna
Impedance
Electrical
Power requirements
Mains 
Current drain RX
TX
Physical
Dimensions (w×h×d)
165 × 178 × 260 mm (6.50 × 7.01 × 10.24 in)  
Weight
6.8 kg (15 lbs)  
Form factor
Desktop 
Manufactured
Between 1952 and 19xx in USA 
Other features
Memories
Usage
Amateur / Ham radio operators 
Manufacturer
E.F. Johnson 
Model
Viking Mobile
Features
4 × XTAL selector (VFO option), 807 final. 
Manuals, Diagrams and Brochures
 
None available  
 
 
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