James

Check www.gretschguitars.com a visual list and info on Gretsch guitars.

Check this site, it is primarily for Fender type electronics, www.mrgearhead.com maybe you can get a lead there.

On the subject of intonation for an floating bridge, one that you can move gack and forth as in the picture. I find the following described method handy for me. 1. using a fairly accurate measuring device, at the small e string, measure from where the nut meets the fretboard to the 12th fret, write the result down. 2. measure from the 12th fret to where the string crosses the bridge, the measure should be the same as the first. if not, tap the base of the bridge using a small piece of wood like a paint stirer stick in either direction to where needed. 3. Repeat the same measure for the large E string, only for the second part of the measure add approximately 3/16 of an inch (or about 4mm if you are using metrics), this will get you very close to the correct angle of the bridge in relation to the fretboard for intonation, using a tuner then tune to pitch, check by plucking the string at the 12th fret, and pluck at 12th fret harmonic and adjust the bridge until the sounds match. Usually a floating bridge is already made to compensate for the other strings, so all you would need to do is the two e strings adjustments of the bridge. I am sure there are other methods but this works good for me and may be of help to someone else.

PIEZO TRANSDUCER:If you like to experiment you may be interested in this. Radio Shack sells a piezo transducer for use in a buzzer hobby device. You must remove the element from a plastic case, i used a small hobby saw to cut the case, be careful so as not to damage the element. You can use 2 sided carpet tape to secure the element to your guitar to see how it would sound. Wire the element to a cord with a jack and simply plug into the amp.This works good for acoustic guitars. I used a standard wiring diagram for gibson, any diagram will do, just substitute the element for the regular pickup in the diagram. this arrangement will give you some volume and tone contro if you use the whole wiring system to create your project. This will work best with a preamp. I have been thinking of taking six of these transducers , trimming them to size i need and wiring all to a setup so as to have control of the sound of each string, this would require designing my own bridge, which I don't think would be difficult. The Radio Shack transducer is Cat no. 273-073, cost about $1.89 each. Other items such a pots, caps, wireing material are not expensive.