Jester

The Kingsley Jester is a hand-wired tube overdrive and boost pedal that utilizes two 12ax7 tubes running at high voltage. The circuit is designed to capture the essence of the Kingsley Deluxe series overdrive tone in a footpedal format, based on the overdrive channels of the Deluxe 32 and ToneBaron amplifiers. The Jester features the following specifications:

- Overdrive controls: gain, volume, treble, middle, and bass, with a three- way voicing switch that changes the gain range from low to medium to high.
- A separate foot-switchable tube boost function with a boost level control and 3-way mode switch. Mode 1 is the fattest boost, mode 2 incorporates a tasteful treble boost, and mode 3 is a mid boost. The boost circuit can function with the Jester overdrive circuit or independently as a clean boost.
- Power requirements: 12VDC @ 500mA, with a center positive 2.1mm plug. The Jester ships with its own power supply, which works at any mains voltage from 120VAC up to 240VAC, allowing use in most countries around the world.
- Measurements: The Jester measures 5.25” wide x 5” deep. The front is 1.75” tall, sloping up to 2” at the back. Weight: 1.8 lbs (815g).

The Jester also includes a boost circuit that can function with the overdrive circuit or independently as a clean boost, providing users with four foot- switchable sounds: bypass, clean boost, overdrive, and boosted overdrive. The boost on its own works great for a clean boost or for pushing the front end of an amp into overdrive.

Additionally, the Jester has a smaller enclosure (version B) that represents a considerable space savings over the previous version, while maintaining the same audio circuitry and components. The two Tungsol re-issue 12ax7s are now housed completely inside the pedal and still run at high voltage (around 250VDC).

The Jester Custom and Jester Sizzle are updated versions of the Jester, offering additional features and modifications to the overdrive and boost circuits.