Tools, Tones and Toys for Guitarists
Thought I might add the Wampler Plexi-Drive to the list after I did another Benson layout, as they are similar in many ways. Just look at the two schematics side by side, and you’ll see what I mean. Like anything involving JFETS, choose the resistors going to the drains to suit your JEFTS; they can and … Read more
The Benson Preamp is pretty popular, but 2M pots are hard to find. This is a modded vero layout using a 1M bass pot. To make this change and keep the same frequency response, resistances are halved, capacitance is doubled. Note that the Drive pot value also had to be halved. I’ll add a regular size … Read more
Another interesting circuit design by ROG; using a hex invrter to emulate a Tubescreamer Schematic and a writeup is avaiable HERE. Note that the resistor labelled “X” in the schematic is replaced by a 500k trimpot so you dial in the right amount of clean signal. Set it at around 100k for single coils, 220k … Read more
Catalinbread has released two versions of the Karma Suture, one germanium and one silicon based. Both at their hearts are simply a modified Harmonic Percolator. I think Catalinbread described it best on their site: A bubbling cauldron of even-order harmonics! The only change I made in the layout from the schematic is I added a … Read more
I know, I know, it’s been a long time since a new layout has been posted. We have not gone away, just time has a habit of getting away from you, especially with the current state of the pandemic. I’ve got a running list for more layouts to come, but I don’t want to post … Read more
