Boston   pitch pipe for guitar, plastic

Boston   pitch pipe for cello/tenor banjo/viola, plastic

Boston   chromatic pitch pipe, C-C

Wittner   tuning fork, 4,5 mm., round, nickel plated, e1-329.6 Hz.

Wittner   tuning fork, 4x5 mm., square, nickel plated, a1-440.0 Hz.

Wittner   tuning fork, 4x8 mm., square, nickel plated, a1-440.00 Hz.

Boston   chromatic clip tuner, with multi color display, auto power on/off

Boston   chromatic clip tuner (also G+B+U+V), with full color display, 430-450Hz

Boston   chromatic clip tuner (also G+B+U+V), with full color display, 430-450Hz, violin clip

Boston   clip on tuner pick-up, 90 cm. cable, standard 6.3 mm. jack plug

Rotosound   Chromatic tuner

Rotosound   Chromatic metronome tuner