Radio Direction Finder BC-470
Radio Set SCR-206
Oct. 3, 1942

Radio Set SCR-206  BC-470 is a portable radio direction finder for ground use. It employs  nine tubes in a superheterodyne circuit. The frequency range of 200 to 18.000 kc. is covered in eight bands.

- Band 1     200 – 360     kc.
- Band 2     360 – 650     kc.
- Band 3     650 – 1.150   kc.
- Band 4   1.150 – 2.000   kc.
- Band 5   2.000 – 3.600   kc.
- Band 6   3.600 – 6.500   kc.
- Band 7   6.500 – 11.500  kc.
- Band 8  11.500 – 18.000  kc.

Amplitude-modulated waves can be received using either manual or automatic r-f gain control. Circuits are provided in the set for talking over a goniometric intercept telephone line and for comparing  the signals from the radio set with those on the line. The set is powered by a six-volts storage battery and employs a dynamotor to supply the high-voltage circuits. The power consumption of the set is 46 watts.

Frequency Coverage:  200 to 18.000 kc.  in eight bands
Tubes : 3 x VT-117 (6SK7), 2 x VT-103 (6SQ7),1 x VT-150 (6SA7) 
           1 x VT-94 (6J5), 1 x VT-152 (6K6GT), 1 x VT-98 (6U5)
Dimensions and Loop Rotator: 16 3/8 x 15 ½  x   24 1/8 inc.
Weight : 96.5 pounds
Dynamotor : PE-91
Manual: TM 11-240