Ajh-synth MiniMod Dual Contour User Manual download pdf

Dual Contour User Guide

Thank you for purchasing the AJH Synth MiniMod Dual Contour 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!

It comprises two independant Envelope Generators in a single 12hp wide Eurorack module.

These are very accurate replicas of the vintage Model D Contour Generators, with identical all

transistor EG circuitry, using the correct +9.3V and -10v supply voltages of the original. This

ensures that they exactly replicate the original envelope response, along with all of the associated

eccentricities. Extra features include manual trigger buttons and envelope status LED’s.

There are two factors that are absolutely essential when attempting to faithfully recreate the

iconic Model D envelope behaviour and function, rstly the very fast exponential slope , which

when used in conjunction with the (near) linear slope of the original VCA is largely responsible

for the famous Model D “punch”. Secondly, the re-trigger behaviour is quite unique; multiple

retriggering progressively increases the output level so that either the volume increases incre-

mentally or the lter opens incrementally with each extra key press.

We have added independant Decay switches for each Contour Generator rather than the shared

switch of the original synthesiser, these switches change the Contour response from decay active

(switch down) to zero decay (switch up) when the gate signal goes low. The actual envelope

response is ADSD (Attack, Decay 1, Sustain, Decay 2), where Decay 1 and Decay 2 speeds are

always equal.

Module width is 12 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 38mA from the +12V supply rail and 15mA 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 Envelope Generators

www.ajhsynth.com

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Summary of Contents

Page 1 - Dual Contour User Guide

Dual Contour User GuideThank you for purchasing the AJH Synth MiniMod Dual Contour module, which like all AJH Synth Modules, has been designed and han

Page 2 - Controls, inputs and outputs

CONTOUR GENERATORSmodOUT 1 OUT 2GATE 2GATE 1TRIG TRIGENV 1DECAY ENV 2DECAYSUSTAIN 1DECAY 1ATTACK 1SUSTAIN 2DECAY 2ATTACK 2284601028460102005600 110

Page 3 - Output LevelGate Signal

8 EG 2 Decay :Sets the speed of the decay cycle for EG 2, and can be varied from 10 milliseconds to 10 seconds. The decay cycle commences either w

Page 4 - Power Cable

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Ajh-synth MiniMod Dual Contour User Manual

Browse online or download User Manual for Receivers and Amplifiers Ajh-synth MiniMod Dual Contour. AJH Synth MiniMod Dual Contour User Manual

Summary of Contents

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