Solid State Guitar Amp Forum | DIY Guitar Amplifiers
Solid State Amplifiers => Preamps and Effects => Topic started by: dg on December 17, 2009, 10:10:06 AM
Hi Guys I now have a decent soldering iron and a bucket of enthusiasm
I buy pre amps to increase the output of the under saddle transducer pickups I fit to the acoustic guitars I make (hobby builder) can I make a simple pre amp to just boost the signal ,no eq volume ect must be 9v battery powered that I can mount inside the guitar that's a simple schematic that even a novice can understand
Thanks
David
There are three very simple preamps I know of that would fit your description. All are variations on the same theme. They are easy to find, just google them. First and most classic is the Tillman one-fet preamp. This is super easy and has been around a LONG time. There are even instructions for how to fit one in a 1/4" plug on a cable. The classic uses a J-201 FET, but there is a version for an mpf-102 as well. I've built both. Next is a derivative called the "piezo pre", which is basically a tillman pre someone tuned for use with piezo pickups. I have not built this. Next is the "fetzer valve" from runoffgroove.com. This is a well like one. I've built several.
All these are super simple, one-transistor builds, run off 9 volts, and are small enough to be easily mounted on board a guitar. There are others out there too, but these are good starting places.