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Last modified 2019-06-04

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Hammarlund Super-Pro SP-400-X

A picture of Hammarlund Super-Pro SP-400-X

SPECIFICATIONS

GENERAL
Type:HF receiver
Frequency range:0.54-30 MHz in 5 bands
Tuning steps:Continuous
Frequency stability:? ppm
Mode:AM/CW
Channels/memory management:No
Power supply:6.3 VAC, -50 VDC, +100 VDC, +250 VDC & +380 VDC from separate PSU
Current drain/power consumption:180 W (Average)
Antenna impedance/connector:~100 ohm / Screw terminals
Dimensions (W*H*D):546*311*387 mm (21.5*12.25*15.25")
Weight:30.4 Kg (67 lbs)
Other features:ANL, Bandspread.




RECEIVER SECTION
Receiver system:Single conversion superheterodyne
IF: 455 KHz
Sensitivity:
Selectivity:
Image rejection:
AF output power/speaker: Early versions: ? W at 10% distortion / 600 and 8000 ohm (6F6 audio output tubes)
Later versions: 8 W at 10% distortion / 8 and 500 ohm (6V6 audio output tubes)
External speaker connector:




MISCELLANEOUS
Manufactured:USA, 1946-1948 (Discontinued)
Additional info: 18 tubes
New price 1947 in the US: $342.00
Related documents: User manual (31 MB)
Schematic (291 KB)
Modifications:
Reviews:
Options/Accessories:
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