I was skimming over my next potential project(s), and spent some time looking at the Dark Esbat Boost (Black Country Customs TI-Boost). Looking at the schematic, I thought, that looks somewhat familiar. Compare it to the Ember Boost (TCE Spark Booster). The circuit topologies are the same! In fact, all but a very small number of component values are the same. Someone should check my work, I may have overlooked some differences. But this circuit, while it has some familiar building blocks, is itself somewhat unique (complex, if nothing else, with three dual opamps). In other words, I don't think there's any chance it's an accidental copy.
What I also find curious is that if you look at TCE's product page for the Spark Booster, they list Tony Iommi as one of the artists using the Spark Booster. And of course the "TI" in "TI-Boost" is a direct reference to Tony Iommi.
What I also find curious is that if you look at TCE's product page for the Spark Booster, they list Tony Iommi as one of the artists using the Spark Booster. And of course the "TI" in "TI-Boost" is a direct reference to Tony Iommi.