YT-250 is an electronic musical instrument tuner produced by Yamaha. It has a liquid crystal display, tuning guide, note display, etc., can adjust A4=435~446Hz pitch, the accuracy is ±1 cent, and the power supply is 6F22 (006P) 9V battery. The battery life is about 50 hours.
The Yamaha YT-250 is a portable chromatic tuner designed to help musicians tune their instruments accurately. It features an automatic (AUTO) mode that detects the closest note name and pitch deviation, as well as a manual (MANL.) mode where users can specify the desired note. The device displays the note name, needle position, and tuning guide LEDs to assist in precise adjustment. This manual is written in Japanese.
| Note Names Displayed | G, A, B, C, D, E, F, G, A#, B |
|---|---|
| Tuning Range | A0 (27Hz) to CB (4186Hz) |
| Auto-Tune Range | +/-3 cents |
| Reference Pitch Range | A4=435-446Hz (1 Hz step) |
| Input/Output | INPUT: Mono, Built-in Microphone; OUTPUT: Mono |
| Battery Life | Approx. 50 hours (AUTO mode) |
| Dimensions | 118(W)x63(H) x24.5(D) mm |
| Weight | 130g (with dry battery) |
The tuner offers an AUTO mode that automatically displays the closest note name and pitch deviation, and a MANL. mode where you specify the desired note.
Press the MODE switch to toggle between AUTO and MANL. modes; the current mode is displayed in the lower left of the LCD.