Ajh-synth MiniMod VCF Bedienungsanleitung PDF herunterladen

VCF User Guide

Thank you for purchasing the AJH Synth MiniMod VCF module, which like all AJH Synth Modules,

has been designed and handbuilt in the UK from the very highest quality components. We hope

that it will help and inspire you towards creating some great music and soundscapes!

The MiniMod VCF is a very faithful replica of the four pole 24db/octave low pass lter used in the

early Model D synthesiser. By using fully matched discrete ladder transistors along with audio-

phile grade capacitors and operational ampliers in the audio signal path, it captures the vintage

sound and vibe of this epic lter and combines it with the versatility of the Eurorack modular

format.

The front panel provides a three channel input mixer and a large lter cuto control, along with

1/3 and 2/3 CV inputs to emulate the action of the original VCF keyboard switches. There is also a

variable Exponential CV input which is about 30% more sensitive than the 1v/oct input, which

allows some nice over modulation eects.

Added features include Voltage Controlled Emphasis (Resonance) which uses a Vactrol as the

control element. This approach was chosen because it is a purely resistive element and impor-

tantly has no impact on the vintage sound of the lter. The fast acting Vactrol chosen allows

modulation speeds up into the audio range. The lter will of course self-resonate and act as a sine

wave oscillator too.

An overdrive facility can be selected using the onboard jumper which allows the input to the lter

core to be substantially overdriven - great for adding a bit of extra dirt to the sound!

Module width is 14 HP of Eurorack space and it is compatible with standard Eurorack cases. The

height of the panel is 128.5mm, and depth is 26mm . There are four mounting holes at the

corners of the module and we provide 4 of M3 rack xing screws, along with a Eurorack compat-

ible power cable. Current consumption is 45mA from the +12V supply rail and 30mA from the

-12V supply rail.

All AJHSynth modules are covered by a one year guarantee against manufacturing defects.

Note:

It is very important that the power supply ribbon cable is connected correctly, see the “adjustment and

calibration” section for an illustration of the correct orientation.

Discrete Transistor Ladder Filter

mod

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Inhaltsverzeichnis

Seite 1 - VCF User Guide

VCF User GuideThank you for purchasing the AJH Synth MiniMod VCF module, which like all AJH Synth Modules, has been designed and handbuilt in the UK f

Seite 2 - Controls, Inputs and Outputs

IN 22/3 CV1V/OctIN 3IN 1INPUT 1FREQ CV EMP CVINPUT 2 INPUT 3EMPHASISFREQ-CV OUTEMP-CV1/3 CV-2-4 42TRANSISTOR LADDER FILTERmod 2846010284

Seite 3

8 Freq CV Input :Connect an external control voltage to this Input for voltage control of the lter cuto frequency. The amount of signal passed to

Seite 4 - Adjustment and Calibration

This varies the amount of control voltage passed from the Emp. CV Input (14) to the lter core and it’s range is 0% to 100%. The manual Emphasis Lev

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Ajh-synth MiniMod VCF Bedienungsanleitung

Stöbern Sie online oder laden Sie Bedienungsanleitung nach Empfänger und Verstärker Ajh-synth MiniMod VCF herunter. AJH Synth MiniMod VCF User Manual Benutzerhandbuch

Inhaltsverzeichnis

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