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Last modified 2026-09-26

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Hallicrafters S-20R "Sky Champion"

A picture of Hallicrafters S-20R ''Sky Champion''

SPECIFICATIONS

GENERAL
Type:HF/VHF receiver
Frequency range: 0.55-44 MHz in four bands
1:   0.55-1.78 MHz
2:   1.74-5.4 MHz
3:   5.3-15.8 MHz
4:   15.5-44 MHz
Tuning steps:Analog / continuous
Frequency stability:±?%
Mode:AM / CW
Channels / memory management: None
Power supply: Mains: 110-120 VAC (110-250 VAC with universal transformer)
Socket for battery power (6 and 340 V)
Current drain / power consumption:Max 65 W
Antenna impedance / connector:400 ohm / Screw terminals
Dimensions (W*H*D):470*216*238 mm (18.5*8.5*9.37")
Weight:14.5 Kg (31.97 lb)
Other features:External S-meter socket.




RECEIVER SECTION
Receiver system: Single conversion superheterodyne
IF: 455 KHz
Sensitivity:
Squelch sensitivity:-
Noise figure:-
Selectivity:
Image rejection:
AF output power / speaker:? W at ?% distortion / ? ohm
External speaker connector:




MISCELLANEOUS
Manufactured:USA, 1939-1945 (Discontinued)
Additional info: 9 tubes
New price 1939 in the US: $49.50

These photos were taken at the swedish army museum in Stockholm. The note
on top of the radio claims that this is the radio the swedish spy Stig Wennerström
used to receive orders from the Soviet Union. This is not so. He actually used a later
Hallicrafters, the SX-110. I guess the museum simply used what was available.
Related documents: User/service manual (24.2 MB)
Modifications and fixes:
Reviews:
Options / Accessories:
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A rear picture of Hallicrafters S-20R ''Sky Champion''