Saturday, November 25, 2023

Yamaha TRB-6P Six-String Bass | Part 5

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Albert's TRB-6P: Hardware

Howdy folks! Welcome to a deep dive into the hardware on Albert Yap's modified Yamaha TRB-6P Six-String Bass. First up are the three-a-side sealed tuners, which are factory issued and bear the "Yamaha Japan" stamp. Next, we have a solid brass nut, which replaced the stock bone nut when the TRB-6 was converted to a fretless. Moving down to the base of the neck, we see the truss rod access channel and adjustment socket. This socket accepts a 3/16" hex wrench. 

Let us examine the bridge now. The factory spec BPZ-6 is no more, and in its place is a gold Monorail-style bridge. This bridge features six separately-mounted "bridge segments" and saddles for the C, G, D, A, E and B strings. Individual string height is adjusted via two hex screws on either side of its saddle. The final hardware modification on Albert's TRB-6P is the conversion of the Monorail bridge from top load to string-through. Six holes have been drilled right through the body and ferrules installed, enabling strings to be loaded from the back.



Yamaha Japan Tuners

Solid Brass Nut




Truss Rod Adjustment Socket

Monorail-Style Bridge





String-Through Ferrules


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