Radek Posted May 22, 2011 Share Posted May 22, 2011 Can somebody identifi this device? Quote Link to comment Share on other sites More sharing options...
Chris Hall Posted May 22, 2011 Share Posted May 22, 2011 Looks like some sort of test rig for F4 Phantom Jets. Quote Link to comment Share on other sites More sharing options...
Chris Suslowicz Posted May 22, 2011 Share Posted May 22, 2011 Can somebody identifi this device? Carrier telephony equipment. At a guess it's "Balance Filter Unit !+! Mk.1*" and probably rather heavy - full of soft iron cored inductors and block paper capacitors. The "1 + 1" means 1 audio plus 1 carrier circuit on the same set of wires. The "Phantom" part refers to a separate circuit, usually between two pairs or one pair and earth, used by the engineers for testing and fault reporting (the "order wire'). Best, Chris. Quote Link to comment Share on other sites More sharing options...
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