Saturday, 21 November 2020

Boss MT-2 Metal Zone

 


 
 

 
 
And since this is a circuit that is popular mod platform, here is the layout with component numbers that matches the factory schematic so you can easily identify which component to sub when following mod suggestions online.
 
EDIT! 201217 
Elijah-Baley have created a great mod sheet! LINK!
So now you can socket the whole board and modify it to your taste. :o)
Demo clip of MTKs build.

 


 

Boss BD-2 Blues Driver

 


Friday, 20 November 2020

Boss SP-1 Spectrum

 A fairly rare old Boss eq pedal which is rarely cloned due to the dual 10kA/10kC Balance control. However, it is quite easy to make your own if you have a dual 10kA pot and a single 10kA pot on hand. Custom pot tuturial and schematic is avaiable HERE

 

 




Boss FA-1 FET Amplifier

 Slightly modified, subbing the two single op amps of the original to a dual. 1458 or 4558 should match the spec of the original ones.



Thursday, 19 November 2020

Dinosaural OPA-101 Overdriven Pre Amp

 Just traced by Aion Fx as their Ixuea project. This layout is slightly modified compared to the original pedal. First, stock units had a fixed low pass filter before the volume control. The resistor in the filter is now replaced by an external tone control. Secomd, it is wired for true bypass with the input buffer hardwired.



 

Wednesday, 18 November 2020

Ghost Effects Warmjet V

 Ghost Effects take on the rare and elusive WEM Project V Fuzz. Compared to the original, some overkill filtering has been removed and Edge and Drive switches has been replaced with a tone control labelled Edge.

Information regarding mods and trimpot setup is avaiable HERE.

 
 

 
 


 

 


Rostex Metalizer

 


Sunday, 15 November 2020

Electro Harmonix V1 Triangle Big Muff 66#5 - 1969 perfboard version

 Can't believe I haven't posted this one yet since it is one of the better vintage big muffs I built and played. In the very early days EH, component values varied quite a lot so this layout is based on Kitraes schematic HERE. There is also some notes and info the component values.

Trannsistors is 2N5133 which is almost impossible to source nowadays. Some Big Muff owners have measured their transistors (out of circuit) and reported those varied quite a lot but most of them were in the 150-300 hfe range. 2N2222, 2N3904 or BC547B might be good candidates but a personal favorite is ME4003.

Here is two layouts, one standard and one "Triangle Style" mojo layout. Both are verified.

 

 
 





 


DAM TB-00

 David A Mains take on a tonebender that should have been released before Tonebender Mk. 1...:-p

 


 


 




Saturday, 14 November 2020

Electro Harmonix Small Stone V3

 

There was a an incorrect value in the factory schematic. It is now corrected and the layout is verified by slammer88.



Electro Harmonix Pulsar

 A modified layout for the old EHX Pulsar which is infamous for its LFO ticking bleedtrough. There is two mods that hopefully can solve it. First, an op amp input buffer and second  the more common mod; separating the power with a small value resistor between the amplifier and the LFO section. LFO section also have its own power filter cap.