The last layout of 2022!
Thorpy Fx take on a Rat. An input MOSFET gain stage with a bias control, a fancy high end single op amp and LED hard clippers. Looks fun!
Schematic is avaiable HERE.
The last layout of 2022!
Thorpy Fx take on a Rat. An input MOSFET gain stage with a bias control, a fancy high end single op amp and LED hard clippers. Looks fun!
Schematic is avaiable HERE.
With some modern improvements:
Another Exar box traced by Vitali from Drunk Beaver pedals. I've been curious about this one for a while. It turns out that the fuzz section are a Boss DS-1 derivate. The interesting part lies in the Eq section. The Frequency pot controls both a Big Muff tonestack (with a very deep mid scoop notch) and an active bandpass filter. The Equilize control pans between both filters...
It came out quite big but it will fit in 125b box if mounted sideways.
Schematic is avaiable HERE.
A pretty rare japanese boutique OD based on the 77-80 era Boss OD-1. The LF444 are a quad op amp with J FET inputs so TL064/TL074 are suitable replacements.
Schematic is avaiable HERE.
Forgot I had the later and more common version in a folder...
For the earlier quad op amp version there is a layout HERE.
This is pretty much a souped up DOD250/MXR Distortion Plus derivate with more gain on tap and useful gain control. But the most interesting thing is the "Sens" control which pand between a low pass filter and hard clipping diodes.
Schematic is avaiable HERE.
Per request.
The layout stays mostly true to the schematic. One half of the op amps was unused to I used it for buffered Vref which doesn't hurt. Quite an interesting design if a bit over engineered.:-)
By looking at the component values, this appears to be a smoother, tighter, civilized and mid oriented Muff variant especially when you compare it to Ultrastoner and TSM680...
Based on Maxon Distortion Master but with a hardwired bass control and different component values along the signal path. The buffered bypass swithing wasn't included in the schematic so I left it out.
The fuzz and wah section of Ltava Fuzz/Vibrato/Wah multi effects pedal manufactured in Ukraine in the early 80s. The LFO section was left out simply because the layout would be too big. The internal trimpots is taken out on the outside for external gain controls. And a onboard voltage inverter was added.
Based on Marshall Shredmaster but lots of tweaked values and a few addons along the signal path. So it might have its own thing soundwise...
Schematic is avaiable HERE.
Might be something for the HM-2 fans? The gyrator frequiencies and Q's looks promising...
Schematic is avaiable HERE.
An old polish distortion which is based on Ibanez Trash Metal. Which is basically a buffered and boosted Rat circuit with an additional fixed gyrator EQ stage after the distortion circuit.
Schematic is avaiable HERE.
There is a layout for the fuzz section in library but here comes the whole package with the inductorless wah circuit ryincluded. The wah pot can be wired as a manual panel mounted "bandpass filter" tone control or wired through an expression jack. The fuzz section is based on Foxx tone machine but there is quite a lots of changes along the signal path wiith different component values, a couple of buffer stages and negative feedback resistors. However, the Tone control match the FTM so feel free to adjust the 3,3nf cap for a higher value to bring up some mids.
Slightly modified. Stock units had two 741 op amps but the layout is modified for a dual op amp. A 1458 will do the same job as two 741s.
Found this in an older folthe usuader that I forgot. Includes some necesarry modernazations like true bypass, onbard charge pump, input and output caps and pulldown resistors.
Schematics is avaiable HERE.
It s time for a guest appearance!
Chris Stelloh of Capitalist Death Cult requested a layout for this one a while ago but I couldn't do it at the time so he went off and did his own. The layout is verified and good to go.
It is basically a EHX Bassbals with quite a few mods by PedalPCB. The internal trimpots are now extrenal pots. The Attack, Decay and the the distortion section are addons that wasn't included in the original Bassballs.