The 1059AF enables detection of audio on 115/230 VAC 50/60 HZ power lines. The unit is powered by voltage supplied through J4 of the 1059 MKII preamplifier.  An input cable for use with standard AC outlets and an extra plug (Radio Shack P/N 274-001A) are included. OPERATION:  Insert the RED plug from the 1059AF into J4 of the 1059 MKII.  Turn J4 VOLTS ON and place the FILTER-IN switch in the up position.  Plug the input cable into the 1059AF and an AC outlet.  FOR SAFETY REASONS, THE INPUT CABLE IS EASY TO INSERT AND EASY TO REMOVE.  Rotate the VOLUME control clockwise to turn on the 1059 MKII.   Advance the volume slowly to listen to any AC line signals.  If no audio is on the line, only random noise is audible.  Audio signals from 10mV P-P (millivolts peak to peak) and upwards are heard clearly.   Data or digital signals create a loud buzz or total suppression of the normal line noise.  For both audio and data signals... FIND THE SOURCE! It is sometimes helpful to use the "feedback method" by inserting a small audio amplifier, such as the Radio Shack MINI AMPLIFIER-SPEAKER (Cat. No. 277-1008C), into jack J6.  For detailed analysis, plug an oscilloscope into J5. The 1059AF may be used with any commercial or homemade amplifier by connecting +9 volts (Alkaline always) through a 4.7K ohm resistor to the center pin of the filter output cable.   Connect the -9 volt lead to the shell of the connector.   Use a shielded cable to connect the center pin and shell to an audio amplifier. Cable TV and TV lines may also be tested with the 1059AF. USE CARE WHEN WORKING AROUND AC POWER LINES! ALWAYS PUT ONE HAND IN A REAR POCKET WHEN INSERTING AND REMOVING THE TEST LEAD!! Notes: The input is isolated from the output by 1,000 VRMS.            There is no battery in the 1059AF so the battery compartment door on the case is glued shut. BACK TO PRODUCTS       HOME        © 2008-2009 1/09