Dreamcoat

The Catalinbread Dreamcoat recreates the preamp EQ section of the Ampeg VT-22 amplifier using discrete transistor circuitry. The original amp's distinctive scooped midrange and powerful EQ became a secret weapon for players in the 1970s. Treble, Mid, and Bass controls mirror the VT-22's tone stack behavior, while Volume sets the output level.

The discrete transistor implementation captures the specific interaction between the original amp's EQ stages—how boosting bass affects the midrange response, and how the treble control interacts with the upper harmonics. At 44mA on 9V DC, the circuit has enough current for clean, headroom-rich operation of the multi-stage EQ.

Works as a standalone tone-shaping preamp or as a foundation for your entire signal chain. The VT-22's EQ character is distinctly different from Fender or Marshall tone stacks—more aggressive scooping capability with a particular warmth in the low-mids that flatters both clean and driven tones.