Shure A15TG Battery Operated 700 Hz In-Line Tone Generator with XLR Connector


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Dale #:SHUR-A15TG

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  • The Shure A15TG Tone Generator is a battery-powered 700 Hz signal source that can be used to troubleshoot low-impedance, balanced-line microphone inputs.

    The A15TG includes a recessed On-Off switch and a three-pin XLR audio connector.  A removable end cap allows easy battery installation and removal. The A15TG can also tolerate the presence of phantom power, or a short circuit in the line it is driving. Built-in short circuit protection allows normal operation to resume after a short is removed.

    The A15TG can operate continuously for approximately 1000 hours on one 1.5V alkaline battery. To conserve battery power, make sure the On-Off switch is in the Off position when the A15TG is not in use.


    • Produces a continuous 700 Hz mic-level signal capable of driving low-impedance, balanced lines.
    • 1,000 hours of battery life under continuous use
    • On/Off switch
    • XLR male output
  • Output Frequency700 Hz +- 20%, when terminated with 150 ohms
    Output Level-41.5 +- 4.5 dBV (8.4 mV typical) when terminated with 150 ohms
    Total Harmonic Distortion 5% typical for any output termination greater than or equal to 150 ohms
    Output Impedance <15 ohms
    Battery Type1.5 V alkaline
    Temperature RangeOperating: -12 to 50 degrees C (10 to 130 degrees F)
    Storage: -29 to 74 degrees C (-20 to 165 degrees F)
    CaseSteel with gray enamel finish
    Dimensions19 mm (3/4 in.) diameter; 141 mm (5 17/32 in.) long
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