Automatic Quartz Guitar Tuner (630-1001) Features Faxback Doc. # 18340 Your Radio Shack Automatic Quartz Guitar Tuner lets you precisely tune an acoustic or electric guitar. You can tell whether your guitar's pitch is above or below the tuner's reference pitch by reading the large, easy-to- read meter. Your tuner's features include: Meter - shows the battery condition and tuning on Hertz and cents scales. Function Selection - lets you switch the tuner on and off, select manual or automatic tuning, and check the battery's condition. Built-In Microphone - picks up an acoustic guitar's sound to measure how its pitch compares to the reference pitch. Input/Output Jacks - make it easy to tune an electric guitar, with or without connecting it to an amplifier. NOTE: The tuner requires one 9-Volt battery (not included). (PH 11/30/95)