BM-Q special Treble Booster

Brian May from Queen used in his early days the British Range Master Germanium Treble Booster, a unit produced between 1965 and 1969. This model is rebuild as RM by BSM. In mid-phase from Queen, BrianMay switched to a silicon Treble Booster design for more bite, now reproduced by BSM with orginal silicon transistor and called BM-Q special. The same unit fitted with volume control called BM-Q.