Providence stv-1jb Hardly used. It's in beautiful condition. Works perfectly. This is a high-precision tuner with a vitalizer and junction box functions. Production of this product has been discontinued. The "STV-1JB" is here, combining a junction box, VITALIZER, mute box, and tuner! By utilizing the IN/OUT jacks and SEND/RETURN, you can mute the final stage of your pedal system during tuning. It can also be used as a junction box or splitter. Furthermore, by incorporating the VITALIZER converter, which suppresses changes and deterioration in sound quality, it is effective for systems that go through many contact points or when using long cables. Pedal tuner