Tools, Tones and Toys for Guitarists
Per request. Note that there is an option to choose between internal trim pot (as in original) or external potoentiometer for the Freq control. Freq switch is external and the MPQ3904 transistor array is replaced with ordinary 2N3904s. Schematic is avaiable HERE.
An interesting high gain overdrive three cascaded mu amp stages with a poweful and flexible eq section Schematic is avaiable HERE. Came out a bit big with eight transistors and an IC so mounted sideways in a BB enclosure might be the best option when housing it…
Another Dunwich trace by evilarsen, AlexS and fuzzhead. I believe this one was made on custom order and/or was a on/off product. However, compoent values varied over time but we added some notes at the bottom of the layout and schematic for the most significant changes that is worth experimenting with: Input capacitors connecting to … Read more
Dunwich released a small run of DIY PCBs a few years ago of a modified HM2. There is a few changes from a stock HM2 most noticable the on/off switches for both soft clipping and hard clipping diodes. You may want to experiment with the cap values at one of the gyrators for a more … Read more
Some says this is a HM2 killer. I don’t know about that but it differs enough circuit wise to deserve its own layout. Note that “Hard/Soft” switch is omitted as well as “Output 2” op amp circuit. Factory schematic is a mess so I had to draw up a cleaner … Read more
There is several versions of this one but the 4-knob version seem to be the most common version. Initially, it was a custom fuzz for doom band Conan but it was later slightly modified and morphed into Dunwich/Magic Pedals lineup of pedals. Traced by evilarsen and fuzzhead who both dig the sounds coming out of … Read more
Couldn’t resist to draw a schematic and a layout for this interesting mutant of a circuit that just got traced. First two gain stages is almost identical to a Jumbo Tonebender (except for one cap and one resistor value), the third gain stage is almost identical to the saturation stage in a Tonebender Mk. 3. … Read more
Taking a break from the break since this one was too interesting to pass on and it was a quick layout. Tracing post, schematic and info at Aion Fx.
