Tools, Tones and Toys for Guitarists
Here’s the Hot Tubes overdrive from Electro Harmonix. It’s based around a 4049 hex inverter chip (like a Red Llama) with a dual op amp pushing it. Original units from the 70s had buffered bypass and a direct out jack. I guess they needed something to fill up those massive enclosures EHX used back in … Read more
There have been a few different iterations of the Soul Preacher. This one follows the version that isn’t based around an OTA chip (much like a DynaComp), but is rather much closer to an Orange Squeezer. The original used a buffered bypass, and I’ve included an extra pad for the buffer out if you want … Read more
Here are two layouts for a classic Ring Modulator. The first one is for a vintage version (schematic available here). The DIP version of 1496 had a different pinout. The second one is for the modern vesion and it could potentially fit in a 125B size box (there is no schematic but a PCB layout here). … Read more
Here’s the Glove from EHX’s nano series. Essentially, it’s an OCD with a switchable charge pump. On originals the voltage switch is internal, but external makes more sense to me, so wire that to your preference. Here’s the schematic for reference.
Here is a layout for a classic pedal. I’ve drawn 2 versions: Vintage and Modern. There are 2 layouts for the Vintage: with and without output boost. I’ve added a boost to the Modern layout to avoid volume loss. You can find the original FSB thread here. 16/01/2017 Layout updated! I’ve changed the vintage layouts … Read more
Here is a layout for the older version of EH Black Finger. You can find the original FSB thread here. I’ve used Pedalgrinder slightly modified schematic on page 3. Some suggested high gain, some low gain transistors. Should test them both. … and the LM13700’s version:
Here is a verified layout for a quite unknown slapback-echo EH pedal. You can find the original FSB thread here. I’ve added an output boost to cover volume loss. I’ve found only one video around but didn’t sound great.
It’s Fuzz Friday once again and this week we have the Satisfaction Fuzz from Electro Harmonix. It’s essentially a Jordan Bosstone without the clipping diodes and a smaller output capacitor.
Let’s wrap up this 1590a week with one of the mightiest fuzzes of all time–the Big Muff. For this one, I’ve labeled all the components to correspond with the component names on Kit Rae schematics, so find an EHX version on there and populate the board accordingly. This probably won’t work for some of the … Read more
