Control Unit, BC-434-A, of SCR-269 Automatic Radio Compass, B-17, B-24, B-29 JU-88 The caging knob at the

The caging knob at the lower right corner would either capture the gyro in a fixed position i

The scale is labeled to a value of 2

25 inches square by ~7

The data label indicates that it was made for Bureau of Aeronautics US Navy ("Bu Aero USNavy") and it has the stamped anchor symbol of the USN on its rear

made by Manning Maxwell and Moore

Control Unit, BC-434-A, of SCR-269 Automatic Radio Compass, B-17, B-24, B-29 JU-88 The caging knob at theThis is a fine example of a BC 434 A Remote Control Box for the aircraft receiver BC 433 of the Radio Compass SCR 269 system for direction finding and homing. The receiver function tunes from 200 1750 kHz across 3 bands, which were selected by rotating the center knob below the frequency band window. The center knob rotates a flexible shaft connected to a rotatable loop antenna. The SCR 269 system (see diagram), as installed in an aircraft such as the