The good Doctor has got a neat little gadget that would fit in with any electric musician's set up, it's perfect for pedal boards but also synth or EuroRack setups, great with studio stuff too. It's called the BoostBot and it's a little always on buffer/booster/level meter.
The buffer/booster circuit is the same from the Reverberator, a very popular and great sounding clean boost that's clean and loud. It's op-amp based and built out of really nice components like WIMA film caps, Nichicon Muse caps, 1% metal film resistors, NE5532P op-amp, Neutrick jacks, Alpha clear shaft pot. The real time level meter is a neat vintage style 10 segment bar graph LED. They're high impedance in, low impedance out, can do a clean boost of around 20dB at 9VDC, safe up to 24VDC.