Bottom side of the RT220B

(click to enlarge)

The  Range Indicator

ID 310

 

 

 

The Azimuth Indicator

ID 307/ARN

Control panel C 886

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Other ARN21 versions

Parts and  Diagrams

British (ST)ARN-21

Beacon Simulator

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Waveforms

 Wiring

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A tribute to its inventor, Sven H. Dodington.

VINTAGE AVIONICS

Inside THE ARN21B