Aion Electronics Azimuth Overdrive Manual

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Azimuth Overdrive

Hermida/Lovepedal Zendrive

Overview

Controls & Usage

The Zendrive has the following controls:

• Drive controls the amount of gain in the op amp feedback diode clipping stage.

• Tone controls the treble response of the effect.

• Voice controls the amount of bass while also changing the gain structure. As you turn it up, the available

gain range also increases.

• Volume controls the overall output.

Modifications & Experimentation

This one won't be a whole lot of fun for a tweaker. The Zendrive is what it is, and with such a low parts count, if

you start changing values around then it quickly stops being a Zendrive.

ZENDRIVE / AZIMUTH OVERDRIVE

The Azimuth Overdrive project is a clone of the Hermida

/ Lovepedal Zendrive. It was first released ... and in 2013

production was taken over by Lovepedal. The circuit has

changed very little since its inception, with the only major

change being the op-amp once Lovepedal took over.

The circuit is very basic, with a standard TS-style clipping

section followed by a variable R-C treble cut and a buffer.

The bass is adjustable via the "Voice" control, which

varies the corner frequency of the filter coming off the op-

amp. This also has the side-effect that the available gain

increases as the Voice control is turned up.

Despite the legendary stature of the Zendrive, the circuit

has the lowest parts count of any of my PCB projects and

is a great project for beginners.

Azimuth Project Link