Lady Dirt
The Zeta Sound Lady Dirt is a high voltage overdrive pedal based around two 12AX7:s. Three gain stages and a cathode follower driving a tone stack, tweaked with selected components. True bypass with shielded signal wiring. Knobs for Dirt, Treble, Mids, Bas and Volume. Powered by with an external 1A, 12VDC, 2,5mm center positive adapter. Voltage is internally converted to 250VDC feeding the tubes. When powered up it waits about 30 sec until the high voltage is placed on the anodes.
Here’s some videoclips contributed by Thomas Ziden
Tremler
Tremler is a tremolo/boost pedal. Equipped with two 6021:s. Powered by with an external 1A, 12VDC, 2,5mm center positive adapter. Voltage is internally converted to 165VDC feeding the tubes. When powered up it waits about 30 sec until the high voltage is placed on the anodes. The circuit is based on Fenders Vibro-Champ. For the time being it’s running at 2.5-6Hz in the tremolo.
First in bypass then boost
Max depth and speed
Max depth and min speed
Middlepos on the knobs
Lady Evil
Lady Evil is an overdrivepedal equipped with two 12AX7:s. The circuit was from the beginning based on Mesa Boogies Bottle Rocket, but has been rebuilt for a more tight bottom and a focused sound. Powered by with an external 1A, 12VDC, 2,5mm center positive adapter. Voltage is internally converted to 250VDC feeding the tubes. When powered up it waits about 30 sec until the high voltage is placed on the anodes.
