Xref: utzoo rec.radio.amateur.misc:2190 sci.electronics:19756 Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sun-barr!olivea!uunet!elroy.jpl.nasa.gov!swrinde!zaphod.mps.ohio-state.edu!sample.eng.ohio-state.edu!purdue!haven.umd.edu!mimsy!ra!phillips From: phillips@fozzie.nrl.navy.mil (Lee Phillips) Newsgroups: rec.radio.amateur.misc,sci.electronics Subject: Tuned amplifier and null detector? Message-ID: Date: 30 Apr 91 18:02:57 GMT Organization: Naval Research Laboratory Lines: 10 At a flea market I picked up, for $2, a box manufactured by General Radio with a meter on which is inscribed "tuned amplifier and null detector". The box has a coax input and bannana plug outputs. It is powered by a set of exotically sized electrical cells. It is early discrete solid state. Anyone know what this is for? -- Lee Phillips phillips@fozzie.nrl.navy.mil phillips@cmf.nrl.navy.mil phillips@lcp.nrl.navy.mil