The PZP-1 Piezo Buffer is now available! The PZP-1 is a high impedance buffer preamp, using 100% discrete class-A circuitry. Designed expressly for the Fender Precision acoustic/electric and HMT basses, it can also help other instruments with piezoelectric pickups. If you thought piezo pickups had to sound `clacky`, weak, and trebly, think agai
Click here to download the full size of the above Circuit.
n! Properly buffered, the Fender piezo pickup has bass that`s miles deep, yet it still cleanly captures all the warm woodiness of this semihollow-bodied instrument. The PZP-1 started out as a way to improve the sound of my own Fender A/E, the second bass I ever owned. I loved the playability of the bass but never found the piezo bridge pickup to be useful on its own. Eventually I got frustrated, took it apart, and discovered that the electronics in this bass were designed for two magnetic pickups, not a mag and a piezo. I came up with a fix, and put up a web page describing it so other hobbyists could follow in my path. A few people built it, we exchanged information, and the circuit evolved over time. A number of people more interested in playing bass than in soldering asked if I could sell them one ready-made. And finally the answer is yes! Please note that a number of other folks are selling piezo buffers based on an earlier and simpler version of this circuit. The present version has somewhat lower distortion, lower noise, and is better able to drive low impedances than the older circuit could. All versions of this circuit are in the public domain and copying is welcomed. So far I haven`t seen anybody else selling this version, though. The PZP-1 fits inside your bass and shares the same battery used by the existing electronics. Because of this, installation does require some soldering, similar to other aftermarket...
This project fits more for custom made battery casing that can have more space to hide things inside. This switch with few alterations can be used for any other project as well but is designed based on e-bike needs! This project use a clever functionality of....
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is....
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to....
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This....
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the....
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound,....
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the....
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power....
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower.....
characters left: