Brush Strokes
Here's another super rare IRL pedal that commands a ridiculous price, so my advice...build your own!
Brush Strokes is a kit that is based on the Boss FA1 which was sold in the 80's as a unit that clipped onto your guitar strap to eliminate tone suck and act as a preamp. Here it is in true stompbox kit form. As you can see there are three pots and a toggle to play with. The toggle is a low cut tone modifier.
The kit comes with a JP125B enclosure. Predrilled has side jacks and power. Its a decent circuit, and the lower end of medium difficulty to build.
This kit compares to the Boss FA-1
There is no endorsement or approval from any manufacturer and this information is for comparison only.