Don Tillman circuit FET pre-amp

[twangmeisternyc]

Anybody know someone who builds these? I could do it myself, prefer to see others finished goods before I consider it...

Thanks

[twangmeisternyc]

I decided to move forward and build one out into an MXR style box.

Here is the breadboard and a couple links...

http://www2.snapfish.com/slideshow/A...0/t_=128790530

http://www.till.com/articles/GuitarPreamp/

http://www.hawestv.com/amp_projects/...fetpreamp1.htm

[Fedora]

Looks like a interesting project. Something like this could be tucked into a guitar cavity couldn't it? Course it does keep things simpler to leave it outboard.
Let us know how it all turns out.

[chuckocaster]

interesting! so i presume it's more like a buffer than a booster?

[twangmeisternyc]

My goal is to balance out frequencies on piezo pick-ups enough so I can plug straight into my Fender amp and get a good tone. Maybe chasing my tail a bit with that thought but none the less for $20 it is the simplest and most easily modded circuit.

If you read the links, you can get an idea. The breadboard sounds great as is with my PUTW thin metal piezo. The Barcus Berry being so "raw" is still a work in progress...

[twangmeisternyc]

Progress...I still might benefit from having another PUTW thin metal piezo made for the Epi Emperor.

Maybe I just like playing around...keeps me thinking. I have cut the tone stack dispersion by 2/3rd's using the Tillman pre-amp on the Barcus Berry. Those that know these devices, (...et.al., those of us from the 70's) understand the touchy-feelie placement and amp setting conundrum.

BUT IT IS A LOT BETTER! ;-)

[twangmeisternyc]

I just re-strung the Epi, and have tried "numerous" positions for the Barcus Berry Outsider piezo. I can do better with the LR Baggs Para DI unit than this simple JFET pre-amp. It is really easy for it to be "tinny" and thin sounding otherwise.

The JFET seems to do just fine with the PUTW thin metal device.