Ajh-synth MiniMod VCA Manuel d'utilisateur télécharger pdf

VCA User Guide

Thank you for purchasing the AJH Synth MiniMod VCA 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 Discrete Cascaded VCA exactly re-creates the VCA circuitry of the vintage Model D

synthesiser in Eurorack modular format. It features two fully discrete transistor VCA cores which

are hardwired in series, to which we have added full voltage control to both VCA cores along with

an overdrive facility. Particular attention has been paid to the selection and matching of compo-

nents in the audio signal path, including the use of audiophile grade capacitors and operational

ampliers.

There are two Audio Inputs, each with their own level controls along with two CV inputs which

control the gain of VCA 1 and a Master CV Input and level control which controls the gain of VCA

2. An oset control allows a preset gain to be added to VCA 1. Internally it operates at the same

voltage and signal levels as the early Model D voltage controlled amplier and the output of VCA

1 is hardwired to the input of VCA 2.

A high gain (overdrive) mode can be selected with an onboard jumper. This overdrives the Input

of VCA 1 by a factor of 3 and forces it into soft clipping - the second VCA can be used in a similar

way to the Master volume on a guitar amplier to control levels so that variable levels of distor-

tion (or "grit") can be added to the sound and still maintain unity gain overall.

Module width is 10 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 compatible

power cable. Current consumption is 40mA from the +12V supply rail and 22mA 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 Cascaded VCA

www.ajhsynth.com

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Résumé du contenu

Page 1 - VCA User Guide

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

Page 2 - Controls, Inputs and Outputs

DISCRETE CASCADED VCAMASTERCV 2OUTCV 2CV 1AUDIO 1AUDIO 2AUDIO 2AUDIO 1MASTEROFFSETmodCV 128460102846010 284601028460102846010284601011 Master (V

Page 3 - MiniMod Cascaded VCA

6 CV Input 2 :Works in the same fashion as CV Input 1. Any voltage applied to this Input is attenuated by CV 2 Level control (8) and summed with C

Page 4 - Adjustment and Calibration

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Ajh-synth MiniMod VCA Manuel d'utilisateur

Naviguer en ligne ou télécharger Manuel d'utilisateur pour Récepteurs et amplificateurs Ajh-synth MiniMod VCA. AJH Synth MiniMod VCA User Manual Manuel d'utilisatio

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