Adirondack Guitar - The Guitar Garage

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3 Lafayette St., Hudson Falls, NY, USA - Phone 518.746.9500

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We inspect and Set-up our Instuments before shipping; we don't just stick a box on a conveyer and have a computer put a shipping label on it.

Fernandes Sustainer

Sustainer Basics:

The Fernandes Sustainer is an electromagnetic system powered by a 9 volt battery that magnetically vibrates the strings of the guitar once you set them into motion. It allows you to sustain single notes or chords with no decay.

How the Fernandes Sustainer Works:

The patented Fernandes Sustainer is powered by a 9-volt alkaline battery, and works in conjunction with the Driver in the neck position, the bridge pickup and the Sustainer circuit board. To achieve infinite sustain the Driver projects magnetic pulses which continuously vibrate the strings of the guitar.

The Harmonic mode:

When the Harmonic mode is activated the Fernandes Sustainer alters the signal sent to the Driver causing the strings to vibrate the same way stings vibrate when they are hit by the sound waves of an amplifier played at extreme volumes. The result is controlled harmonic feedback without the need for excessive volume.


Standard Mode: In the Standard mode the Fernandes Sustainer will continuously vibrate the note. Harmonic Mode: In the Harmonic mode the Fernandes Sustainer will create string vibration similar to the vibration that occurs when sound waves hit the strings at extreme volumes, generating the 5th harmonic of the note being played. Mix Mode: Only available on certain models, the Mix mode is a blend of Standard and Harmonic sustain.


ON/OFF switch: (Black toggle switch) The On position activates the Fernandes Sustainer and automatically selects the bridge pickup while deactivating the pickup selector and the neck pickup. The off position deactivates the Fernandes Sustainer, reactivates the pickup selector and allows the Sustainer driver to function as a normal neck pickup.

Sustainer Mode Selector:

Push/Push: On the 2-mode models that have tone controls, the mode selector is a push/push potentiometer on the tone control. Pushing the tone control will raise the knob to the UP position activating the Harmonic Mode of the Sustainer. Pushing the knob again will lower the knob and return the Sustainer to the Standard Mode. Push/Pull: On the 2-mode models that do not have tone controls, the Intensity control (see below) is a push/pull potentiometer. Pulling the knob up will activate the Harmonic Mode, and pushing it back down will return the Sustainer to the Standard Mode.
Toggle Switch: On the 3-mode models, there are two mini toggle switches. The toggle switch nearest the Bridge Pickup is the mode selector. The UP position is the Standard mode, the MID position is the Mix mode, and the DOWN position is the Harmonic mode. Sustainer Intensity Control: The Sustainer Intensity Control knob, which looks like another volume knob, allows you to control the intensity of the sustainer. When the knob is at “0” there is no sustain while at “10” the Fernandes Sustainer is at the maximum setting with the fastest attack and longest sustain.

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