METROTEL MT91A AMPLIFIER RECEIVER & PROBE NEW Amplifies 577 Hz tone tracing signals/60Hz filter
Operates with aerial exploring coil and hand coil
High impact plastic case protects test equipment
Case has space for exploring coil
Components (included in kit or available separately
MT-147D Amplifier Adjustable, solid-state high gain amplifier raises low signals to audible level. Accepts exploring coil or inductive probe and headset. Receives 500 Hz to 755 Hz frequencies
MT-723 Headset Rugged craft headset used to monitor output of MT-147D Amplifier. Coiled 4' cord with 310 plug.
MT-513A Inductive Probe Amplifier for inductive pick-up of tone signal. Has 6-ft cord with 347B plug and ground clip. Measures 7" x .5" and weighs 4 oz.