Peterson SP-1 Strobo Plus HD Model Digital Electronic Tuner.
Since 1952, Peterson Electro-Musical Products has built top of the line tuners. Throughout the 1960's and 1970's Peterson tuners were used onstage by Jimi Hendrix, Neil Young, The Grateful Dead and a host of other stars of the era. The Strobo plus has an easy to read large screen with highly accurate readings for a variety of instruments ranging from Western and Eastern stringed , accordions, electric and acoustic pianos and mallet instruments.
