The layout is from the Guild Brian May Box schematic, which is marked as designed by Pete Cornish, but he has disputed this at one stage.
There's a massive write up here on Fryer Guitars, including photos of inside Brian May's Pete Cornish built pedal board, and inside a pretty vintage looking Pete Cornish treble boost, which also happens to contain a buffer. Given that Fryer rebuilt AC30's for Brian May, I think the man knows a thing or two.
Either way it's a buffered treble boost. You can either wire this up as buffered, or true bypass, whatever you prefer.
GUILD BRIAN MAY TREBLE BOOSTER - VERO LAYOUT
GUILD BRIAN MAY TREBLE BOOSTER - ORIGINAL SCHEMATIC
GUILD BRIAN MAY TREBLE BOOSTER - LTSPICE
Not much to see here.
And one difference to other treble boosters from the ringmaster family is the 10n input cap vs the standard 4.7n.
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