Author Archives: SmudgerD

Phantom Piezo Preamp – new version available

Updated 10 May 2018 Updated 1 June 2018 After two and a half years and thousands of Phantom Piezo Preamps sold, we finally ran out of 2SK596S-C JFETs (which have been discontinued for some time by On-Semi). Going forward, the best option is the Fairchild PF5102 (now also an On-Semi product). We have slightly redesigned… Read More »

JFET guitar/instrument buffer pedal

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 and may be built… Read More »

Re-amper revisited

Update: reStomp re-ampers available for sale in the shop. Back in 2012, I wrote about re-amping and offered a design for a transformer-coupled interface between balanced-line output from a professional recording device and the unbalanced and lower-voltage input to a guitar amplifier. If you’re not familiar with re-amping, the idea is that you record (say)… Read More »

Theatrical power control – part 2

In the first part of this series, we introduced the idea of power control separate from the dimmer system and gave an overview of different ways we can manage switching of power to installed appliances. In this second part, we will look at remote-control schemas for independent contactors. One Big Relay So, the first option… Read More »