L.R. BAGGS PICKUPS
T-BRIDGE
INSTALLATION MANUAL & USER'S GUIDE
483 N. FRONTAGE RD.
NIPOMO, CA 93444
WWW.LRBAGGS.COM
1.PACKAGE CONTENTS
One (1) assembled T-Bridge
Two (2) adjustable bridge posts with threaded collars
One (1) summing circuit board
One (1) piece of insulating tape
One (1) piece of copper shielding tape
One (1) piece of double-stick white foa m ta pe
One (1) length of coaxial cable
One (1) 5meg volume pot
One (1) stereo output jack
2.OVERVIEW AND CAUTIONS
The T- Brid ge can fit onto many popular guitars eq ui pp ed with t une- o- matic-st yl e bridges wit hout the ne ed for se ri ous modification to the
instrument. I t requires ap pr oximately .120 " to .200 " of clea rance below the bottom s ur face of the bridge for the wires. These instructions assu me
that the installation will be performed on a guitar that is already set up to accept the phys ic al d im en si on s an d po st s pa ci ng o f th e br idge.
We recommend tha t this system be installed by a profes si on al dealer/installer. We do no t provide ins ta ll at io n advice or suppor t for home or
hobbyist installations. Installers: please read the inst ru ct ions caref ully befor e proceeding. We will not be r es po ns ib le for any damage to th e guit ar
or personal injury r es ul ti ng f rom installation, improper installat ion, use or misuse of the product.
3.INSTALLATION
1. Dr il l a 5/16" hole for the w ir es from directly beneath the center of th e bridge into the electronics cav ity. In some cases you can angle th e hole
directly towards the cavity, alth ough you must be careful no t to intersect the pos t hol e. If you can not drill a straight ho le with ou t run ni ng into
the post, another option is to dr il l a ho le int o the ma gn et ic pickup cavity and from there into the el ec tronics cavity ; in most c ases t here i s en ou gh
room inside the pickup cavity for the wires .
2. B un dl e th e wi re s together and feed them into the electronics cavity.
3. A circu it boar d is provided with this bridge for the purpose of su mm in g together the si x pic ku ps into on e sin gl e mon o out pu t. These pickups
may also be used hexaphonically, but this use is not describe d in t he se i ns truc tions.
4. Solder t he inner wi res of the coaxial cabl es to the rou nd solder pads on the ci rcuit board and the braided w ir es to the s quare pads as s hown in
figure 1. You may need to strip the ends of the wires so th ey l in e up w it h th e so ld er p ad s on t he s um mi ng b oa rd before soldering.
5. To eliminate hum you must sh ie ld the circ ui t board. Peel off one sid e of the back in g from th e insulating tape and cover all of the signal/hot
connections with it (see figure 2). Next, peel the backing from the copper sh ield in g t ap e and lay it over th e i ns ul at in g tape with the edges
touching the ground pad on three sides; then solder those three edges of the copper tape to t he g round pa d as s ho wn i n figure 3. It's a go od i de a
to insulate the bare co ax w ires that are loose inside the cavity with electri ca l ta pe o r si mi la r ma terial to avoid shorting something out.
6. Secure the s um mi ng board by appl ying t he double-sided white foam a dhesive to t he back side of t he b oard a nd then sticking it to a clean, flat
surf ace inside the cavity.
7. For the final conn ection you may connect your bridge passively in stereo as shown in figure 4. This will pr ovide a separate volume control for
the T-Br id ge on th e rin g contact of the stereo jack while leaving all the magnetic pickup functions as they are currently on th e tip of the stereo
jack. To b e ab le to blend the T -B ri dge si gn al w it h th e ma gn et ic p ic ku ps i n mo no, th e br idge can b e connec te d us in g ou r Ct rl -X a ctive pr ea mp.
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