Receiver Indicator, Rebecca, ID-169A/APN-12 (BC-929-A) Beaufighter B-25 and others

B-25 and others

"triggering" the Eureka (AN/PPN-1) and causing it to return a pulse

so it very well could have appeared in a USMC aircraft

A "zero center" ammeter

Receiver Indicator, Rebecca, ID-169A/APN-12 (BC-929-A) Beaufighter B-25 and othersThis "Rebecca" Receiver Indicator is identified as ID 169A APN 12 AT 2 APN2, but is very similar to the earlier model designated BC 929 A used in the AN APN 2 system. It received signals from two antennae (see photo) typically mounted on each side of the aircraft forward of the wing, receiving navigational signals from the "Eureka" transmitting station. According to the Graphic Survey of Radio And Radar Equipment Used By The Army Air Forces dated July