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- Order number: 180072
- Depth: 25
Logica XT features twelve function algorithms and two forced states, which can be chosen by hand or via a CV input. Up to three input signals plus manually added gates may be included in the module’s calculations. Results are emitted via a normal and an inverted output. Additionally, there is a Div/2 connector, which changes its state just once per generated signal. Logica XT can process control voltages as well as audio material.
Logica XT offers twelve algorithms. They can be divided into six simple logic functions and six complex programs. Signals are fed to the module via three inputs. Depending on the mode of operation chosen, unused connectors are either ignored or normalized to another socket. Additionally, there is a button for adding gate voltages manually. Alternatively to one of the twelve algorithms, Logica XT can be forced into a permanently active or inactive state. Programs are selected via a potentiometer and / or a CV input. Some modes of operation can be edited. Changes are saved automatically. Logica XT does not only feature a normal output, but an inverted one as well. Thus, the module can be used for far more than twelve calculations.
The simple logic functions at a glance:
- And / Nand
- Or / Nor
- Xor / Xnor
- Even / Odd
- 1 High On / Off
- 1 Low On / Off
The complex algorithms at a glance:
- Gater (Combines all inputs in a similar fashion than the Or function does, but with retrigger capability.)
- Gt ~ Tr (Gate to trigger and trigger to gate conversion with editable pulse length.)
- 1, 2, 3 (Sequence validation: The output goes high after signals were fed to the three inputs in the correct order. If the sequence is broken, the module resets the validation process.)
- Coin (Three heads or tails random generators. The chance of winning can be manipulated by the amount of inputs used.)
- S/R. C (Set / Reset + Clock)
- D. S&H (Digital sample & hold stage.)
On top of the two outputs mentioned above, there is a Div/2 connector which changes its state every time the main output transitions from off to on.
The Xor function can be used as a digital ring modulator. Similar circuits were used in synthesizers like the ARP Odyssey or the Korg MS-20.
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