Rook Audio UK: Solar Boost (Dallas Rangemaster+)

https://www.rookaudio.co.uk
I am a big fan of treble boosters. I grew up with them in the 70s and know them well enough to be able to tell a good one from a bad one. Despite them only having a half dozen or so components, it's a bit of an art nailing the perfect treble booster 'honk' and the Solar Boost from UK's Rook Audio has it in spades, probably due in no short part to it's NOS Germanium 'Red Dot' OC139 transistor heart. Here I've teamed up the Solar Boost with a Strat and SG, and a couple of suitable amps.

Today's tools:

Guitar: Fender Stratocaster (one part Eric Johnson signature neck, one part '57 RI body. Mark Emanuelli Pickups. Strapped together and modded by Mark). 2010? Gibson Custom Shop SG/Les Paul '61 RI. Tyson Tone TTL-2 Pickups (the greatest!)
Amp: Axe-FX III MKII running Cygnus FW 20.01. Vox AC30, Marshall JTM45 and 1987x models and appropriate IRs.
Cables: BOSS
Strings: Ernie Ball Slinky or Paradigm
Power Supply: Eventide PowerMax by Cioks
Mic: Samson Airline77 (me)
Camera: iPhone 11 Pro and Canon D60
Soundcard: PreSonus Quantum & Fractal Audio Systems Axe-FX III MKII (guitar, mixing and bouncing).
Desktop Monitors: PreSonus R80 R-Series Active AMT Studio Monitors (https://www.presonus.com)
Computer: 2017 Apple iMac Pro, 2.5 GHz 14-Core Intel Xeon W, 64 GB 2666 MHz DDR4, Radeon Pro Vega 64X 16 GB
Software: Logic Pro X, Apple Final Cut Pro X, Compressor.