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VCA and 5823 Noise Sorcerer restocks

Handmade synthesizer artifacts.

Moderators: Kent, zerosum

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Modulation Maniac
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Joined: Sat Nov 25, 2006 9:49 pm

VCA and 5823 Noise Sorcerer restocks

Post by zerosum » Tue Nov 16, 2021 4:02 pm

I just sent a big box of Voltage Controlled Annihilation and 5823 Noise Sorcerer modules to Noisebug.

These modules are unique to the Zerosum Inertia line of modules without an equivalent from existing module manufacturers or competitors.
The 5823 Noise Generator generates a harsh oscillating noise that sounds like a Xenomorph breaking through glass.
The sound is created by biasing the 5823 tube.
This unique form of noise that cannot be labelled by color like a typical noise source is suitable for use as a high frequency percussion sound generator.
Metal percussion, harsh ice pick type snare sounds, and very unique as an FM modulator applied to oscillators and filters.
The most out of this world interesting sound I have found is FMing a Polivoks filter with the resonance maxed then working the CV attenuverter.
This is the sound every 5823 Noise Sorcerer user must hear.
The 5823 is different from all other tubes used in every other tube module out there because it is a cold cathode thyratron, there is no heater that requires an excessive amount of positive voltage on power up. It contains a noble gas that glows blueish purple.
There isn't an existing product that uses a cold cathode thyratron to compare the 5823 Noise Sorcerer to.
The first Thyratrons were developed in the 1920s, the earliest date that I have seen on a datasheet is 1949.
The 5823 is not an audio tube or intended to be used in audio applications.
The 5823 was commonly used in simplex wall clocks in schools and government institutions as a relay counter to synchronise the minute hands.
The oscillations of the Noise Sorcerer drift all over the place and every tube sounds different.
By applying audio rate modulation into the CV input that will hold it in place and keep it locked in a frequency suitable for percussion sounds.
Slow modulation applied will vary the drift of oscillations.

The Voltage Controlled Annihilation module uses a high quality 12AU6 tube to amplify audio signals to suitable levels to be processed by an A1B neon lamp.
The A1B is another noble gas filled thyratron that creates a unique waveshaping and suboctave sounds when amplified audio is processed through it.
Applying control voltage into the CV input inserts voltage into the tube for a jagged rough jerky Voltage Controlled Amplifier behavior.
No 2164 VCA chips, vactrols, or microprocessors are used in any of these modules. The operations of these modules are performed by tubes.

Applying a VCO into the Voltage Controlled Annihilation and then cranking the top knob which is controls the amount of signal degradation that the neon lamp applies, and then slowing pulling back counter clockwise on the bottom knob that controls the amount of tube gain will yield very interesting results. If you starve the amount of gain going into the neon lamp that the tube provides you will find the sputters and reduced broken distorted sounds. There is a sweet spot inbetween 9 oclock-12 oclock. Less tube gain with maximum neon level results in more broken destructed sonic effects.
More tube gain with less neon level results in musically rich luxurious creamy amplified audio processing commonly associated with "tube sound".
To use as a typical "VCA" it is recommended to crank both knobs full clockwise, then slowly pull back counter clockwise on the bottom tube gain knob while applying CV to the CV input. It is recommended to use a modulator that has a variable curve and onboard CV processing like a Maths or VCS.
Don't even bother with an ADSR.
There are many hidden sounds within the Voltage Controlled Annihilation in knob configurations that you would least expect and it will not behave like your typical VCA or other modules.

These modules are for the experimental sound designer seeking new and unusual sounds with non traditional workflows or expectations.
This is analog and obscure and doesn't conform to any confinements of how to behave. It does what it wants and no 2 modules sound the same.
Hang on for the ride and record it acting out while defying to follow orders. It interprets an idea of a function but will never behave 100% like another module with a similar function name.


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