The Jester now ships in a new smaller (version B) enclosure The audio circuitry and components are all just the same as before, as is the sound. However, the new Jester uses a different power supply design, which has enabled this smaller footprint. The two Tungsol re-issue 12ax7s are now housed completely inside the pedal and still run at high voltage (around 250VDC).
Demo by Sam Goffen Guitar (EN)
Demo by mr amp