aion MAELSTROM Руководство - Страница 2

Просмотреть онлайн или скачать pdf Руководство для Музыкальное оборудование aion MAELSTROM. aion MAELSTROM 11 страниц.

TABLE OF CONTENTS

1 Project Overview

2 Introduction & Usage

3-5 Parts List

6 Build Notes

7 Schematic

INTRODUCTION

The Maelstrom Bass Drive is based on the Darkglass® Microtubes B3K, a CMOS-based drive circuit,

with some additional tweaks adapted from the Vintage Microtubes.

The B3K started life as the Microtubes 2K, which was originally posted to the DIYStompboxes forum by

Douglas Castro in 2008. After finishing university, he moved from Chile to Finland in 2010 and started

Darkglass Electronics as a commercial entity.

During this time, he continued to work on the design, and the updated Microtubes B3K became

Darkglass's first product. While the original 2K was not described as a bass drive, the B3K and all

subsequent Darkglass products have been designed primarily for bass players and marketed as such.

As the name implies, the original Microtubes 2K was inspired by the EHX Hot Tubes from 1979 as well

as some other CMOS-based designs in the DIY community. However, by the time it had evolved into the

B3K, it really bore no resemblance to any other circuits. A single CMOS stage is used for the clipping

tone, contrasting with the cascaded inverters used by other similar circuits.

The Vintage Microtubes followed in early 2013. It's essentially the same circuit as the B3K, but it

removes the two toggle switches and adds a new control called "Era".

The Maelstrom is a direct adaptation of the Microtubes B3K, with the Era control ported over from the

Vintage Microtubes. With the Era control turned down, it's identical to the standard B3K. You can also

make some more parts substitutions to build it to full Vintage Microtubes specs if you'd like.

USAGE

The Maelstrom has six controls:

• Drive controls the amount of gain from the op-amp that is fed through the CMOS inverter stage.

• Era filters the tone after the clipping stage. On the low end, it's warm with a lot of midrange, and as

it's turned up it adds more treble and scoops the midrange somewhat.

• Level sets the overall output of the drive signal.

• Blend pans between the buffered clean signal and the drive signal.

• Attack (toggle) selects between three different treble modes prior to the op-amp gain stage: Boost,

Flat or Cut.

• Grunt (toggle) selects between three different bass levels between the op-amp boost and the

CMOS clipping stages.

MAELSTROM BASS DRIVE

8 Drill Template

9 Enclosure Layout

10 Wiring Diagram

11 Licensing

11 Document Revisions