This is not a kit, this is a DIY bare printed circuit board. Instructions will be sent to access the documentation to complete the PCB.
Background: The Blues Master PCB is based on the Marshall BluesBreaker overdrive guitar pedal circuit. One of the most popular guitar pedal DIY circuits. It was one of three Marshall guitar pedals introduced in 1991. The purpose of the BluesBreaker guitar pedal was to simulate the vacuum tube sound of the vintage 2×12 Marshall combo amp used by Eric Clapton in John Mayall’s Bluesbreakers band.  The BluesBreaker was intended to add a nice breakup and a touch sensitive overdrive to a clean amplifier at lower volumes giving an illusion of a Marshall amp at high output levels. Despite all the good things, some people feel the output is a bit low. Another big downside is that to buy a used original pedal now, on the market will cost you about $350-$500 dollars.
Frog’s Blues Master PCB uses the same circuit, but with a twist suggested to me by a certain Kansas City guitar pedal Guru. The twist is, that the original Bluesbreaker effect circuit is paired up with an Electro Harmonix (EHX) LPB-1 clean boost circuit from 1969 on the output side. This makes the circuit you will build one of the most unique, and great sounding overdrives you can make and at a fraction of the cost of an original. It pairs up well with a single coil or humbucker. With the gain turned down, it makes a nice clean boost, but you can set it on the edge of breakup and when you dig into the strings, it starts into a nice creamy breakup. Turn the gain up further and it breaks up earlier and can begin to provide  distortion sounds. Here is another secret. Build two and run one Blues Master into a second Blues Master and you have the basic makings of the popular King of Tone guitar effect pedal made famous by the Analogman guitar effect company. You can have one set for more gain and one lower/touch sensitive breakup and then run the higher gain into the lower gain setting  and really get some great overdrive/distortion.
