We have had enquiries about adding volume and tone controls to the Unbalanced Piezo Preamp (available in the shop here). The PCB was not designed for the addition of these controls, so this article represents something of a hack.
Here’s the schematic for the design as it stands:
The purpose of R4 […]
Update: Kits available in the shop here.
Following on from our articles on the Unbalanced piezo preamp and Guitar leads, buffers and true bypass we present a project to build your own JFET buffer pedal. The circuit is essentially the same as in the unbalanced piezo preamp with a few tweaks […]
Update: Modules available in the shop now.
The Phantom Piezo Preamp Module has been a great success and has sold very well. […]
Phantom Piezo Preamp Modules are available from the shop. Click here.
Sometimes, back of the envelope calculations do not tell the whole story and neither do simulations. This article is a follow-up to the original article Phantom Piezo Preamp and addresses some errors and misconceptions that have arisen.
Update: Please see also Phantom Piezo Preamp revisited
Update: Phantom Piezo Preamp modules are available for purchase in the shop.