User manual FISHMAN FULL CIRCLE UPRIGHT BASS PICKUP INSTALLATION GUIDE

[. . . ] For good performance it is crucial that the hot side of the pickup lies absolutely flat with no gaps or voids where it contacts the bridge. If necessary, sand the wood flat where it contacts the wheel before you install bridge on the bass (figure 1). When you install the pickup, remove the RCA plug from the back side of the output jack. 1 Turn the wheel so the wire is perpendicular to the leg and the pickup will have an open, resonant response. [. . . ] To accommodate the thickness of the wheel, make a parallel set of lines (line C) 3/8" (9. 5mm) above line B. Turn the bridge sideways and make a vertical line, centered through the taper of the bridge (line F). Go back to line B and continue it across the thickness of the bridge, perpendicular to line F (both legs). Make a jig that will allow you to clamp the bridge and align your layout marks for the drill. Two pieces of ¾" Plywood or MDF fastened at 90° will do the job. You will use a countersink, a #9 (5mm) drill bit and the appropriate tap for this procedure (¼-20 or 6mm). To simplify the job, we recommend that you use a so-called "extension" tap with a long reduced diameter shank. Line up the bridge (and shim if necessary) so that lines D and F are centered with and parallel to the drill bit. Double sided carpet tape makes an excellent temporary clamp for the bridge while you drill. 2 Drier, more focused response. Figure 3 When you mount the Full Circle "threads down, " the hot side of the pickup faces the strings. This translates to more defined articulation and attack, with a slight emphasis on the "string" sound (figure 4). Threads Down Figure 4 Threads Up If you have an "extension tap, " use it now to tap the threads to a depth of 1" (25. 4mm) into the feet. If you don't have an extension tap, wait until you cut off the feet to tap out the threads. Before you cut off the feet, line up the "B" lines on the legs so they are parallel to the saw blade. Place the side of the bridge that faces the tailpiece down towards the table. Line F must be perpendicular to the blade or the wheels will not align properly. If necessary, shim up the bridge to make line B parallel and line F perpendicular to the saw blade. Double sided carpet tape makes an excellent temporary clamp while you cut. After you cut off the feet, enlarge the holes in the legs to ¼" (6. 4mm) diameter. [. . . ] Line F must be perpendicular to the blade or the wheels will not align properly. Double sided carpet tape makes an excellent temporary clamp while you cut. Fit the wheels Once you have cut off the feet, fit the wheels with the bridge off of the bass. The hot side of the pickup should lay absolutely flat against the bridge, with no gaps or voids. [. . . ]