THE CONAR MODEL 230 TUNED SIGNAL TRACER With a tuned signal tracer you can sample the signal at any point in a radio receiver using either transistors or tubes, or in any audio amplifier. With the signal tracer you can hear how the signal sounds, and thus locate distortion, intermittent reception, hum, and any other type of interference. The signal tracer also measures the amplitude of signals so you can tell accurately the gain or loss in signal strength in any stage. This signal tracer can be used as a tuned radio-frequency receiver for receiving radio stations in the broadcast band. Take the necessary time to do a really good job of assembling your signal tracer. If you build your signal tracer exactly as instructed in this manual you will have an extremely valuable service instrument. We have put the diagrams that you will keep referring to on sheets stapled into the center of this manual, so that you can remove them and have them handy to refer to. Carefully open the staples and remove the top two sheets, then close the staples firmly again.