Sonic Research Turbo Tuner Model ST-200 Stomp Box Strobe tuner and Clip On Contact Mic

Turbo Tuner ST-200 The Turbo Tuner is designed to respond quickly to the notes from your guitar without resorting to adjusting the volume or plucking the string differently than you normally would when playing. The single most important tip: Mute the strings not being tuned by resting your fingers on them. This will eliminate sympathetic vibrations and give a quicker response and a cleaner pattern in the strobe display. The Turbo Tuner's true strobe display responds to all the harmonics of the note as well as the fundamental, and the more harmonics, the more complex the display. This does not affect the operation of the tuner. There are several things you can do to reduce the harmonics and get a cleaner looking display: For electric guitars, selecting the pickup closest to the neck will give the clearest pattern. You can also back off the tone control for even greater clarity on the bass strings. Plucking away from the bridge gives a clearer pattern than right next to the bridge. Also, try plucking the string with the side of the thumb rather than a pick. St-200 Specifications/ Output : True bypass, muted output. Zero load on signal when tuner is off. Output muted when tuner is on. Tuning Range: C0 (16.35 Hz) to C8 (4,186.0 Hz) Accuracy: +/- .02 Cents (calibrated crystal oscillator) Reference Pitch: A4 = 300.0 Hz to 599.9 Hz in .1 Hz increments. Jacks: Input, Output (1/4") and external 9 VDC Power Supply: 9 Volt Alkaline Battery(included), or external 9 Volt DC adapter (optional). Power Consumption: 43 mA typ. Gives 12 Hour continuous operation with alkaline battery.