intellijel/tangrams
Tangrams
Dual analog ADSR envelope generators with integrated VCAs and a voltage-controlled pulser circuit that links triggering of the two envelopes, allowing delayed one-shots, cycling organic envelopes, and complex gate patterns.516
Capabilities 3
- Envelope Generatorenvelope-generator
- Dual analog ADSR envelope generators, each with dedicated VCA. Attack, Decay, Release times scaled by 3-position SPEED switch; Sustain sets hold level. Each envelope can be gated manually, by external gate, or by internal PULSER.516
- LFOlfo
- In CYCLE mode the PULSER drives the envelopes to produce repeating, organic LFO-like shapes. Complex unipolar shapes can be created by merging both envelope outputs externally.516
- Voltage-Controlled Amplifiervca
- Two dedicated VCAs (one per envelope). Controlled via LEVEL IN jacks, normalled to 8V. Can process external audio signals for amplitude modulation.516
Jacks 12 — 9 in / 3 out
| Name | Signal | Voltage | Description |
|---|---|---|---|
| Inputs (9) | |||
| ENV 1 GATE IN | gate | — | Gates Envelope 1. Normalled to Envelope 2. OR'd with MANUAL GATE button and PULSER when ENV 1 PULSE SOURCE switch is not in middle position.516 |
| ENV 1 LEVEL IN | mixed | — | Controls the amplitude of the internal VCA for Envelope 1. Normalled to 8V. Accepts CV (e.g. note velocity) or audio signal. Values above/below 8V proportionally increase/decrease the envelope maximum. Negative voltages invert the envelope.516 |
| ENV 1 RETRIG IN | trigger | — | Resets and re-starts the ATTACK stage of Envelope 1 if the gate is currently high. Has no effect if the gate is low.516 |
| ENV 2 GATE IN | gate | — | 516 |
| ENV 2 LEVEL IN | mixed | — | 516 |
| ENV 2 RETRIG IN | trigger | — | 516 |
| START | trigger | — | Triggers or resets the PULSER. In SINGLE mode, starts the pulse sequence. In CYCLE mode, resets to beginning of PULSE 1. OR'd with START button.516 |
| T1 CV IN | cv | — | Offsets the T1 (PULSE 1 length) from the knob setting. Positive voltages increase pulse time, negative decrease it. Normalled to T2 CV IN. Scaled by T1 CV attenuverter.516 |
| T2 CV IN | cv | — | Offsets the T2 (PULSE 2 length) from the knob setting. Normalled from T1 CV IN when nothing patched. Scaled by T2 CV attenuverter.516 |
| Outputs (3) | |||
| ENV 1 OUT | cv | ≤8V | 516 |
| ENV 2 OUT | cv | — | 516 |
| PULSE OUT | gate | — | Direct output of the PULSER. Polarity (which pulse is HIGH) is set by the PULSE OUT POLARITY switch.516 |
Parameters 21
| Name | Type | Range | Behavior |
|---|---|---|---|
| CYCLE | switch | — | DOWN = SINGLE: one-shot pulse sequence triggered by START. UP = CYCLE: pulse sequence repeats endlessly, starts automatically. When cycling, START resets to beginning of PULSE 1.516 |
| ENV 1 A | fader | — | Sets the Attack time for Envelope 1. Higher slider = slower attack. Time range scales with ENV 1 SPEED switch. Fast: max ~1.5-2.0s, Med: max ~10-12s.516 |
| ENV 1 D | fader | — | Sets the Decay time for Envelope 1. Higher slider = slower decay. Time range scales with ENV 1 SPEED switch. Fast: max ~4-5s, Med: max ~22-24s.516 |
| ENV 1 MANUAL GATE | button | — | Press and hold to gate Envelope 1. Gates at +5V. OR'd with GATE IN and PULSER.516 |
| ENV 1 PULSE SOURCE | switch | — | 3-position switch. LEFT: PULSE 1 is the HIGH gate (OR'd with ENV 1 GATE IN and MANUAL GATE). MID: PULSER ignored by Envelope 1. RIGHT: PULSE 2 is the HIGH gate (OR'd with ENV 1 GATE IN and MANUAL GATE).516 |
| ENV 1 R | fader | — | Sets the Release time for Envelope 1 — time to return to 0V after gate goes low. Higher slider = longer release. Range depends on ENV 1 SPEED switch. Fast: max ~4-5s, Med: max ~22-24s.516 |
| ENV 1 S | fader | 0V – 8V | Sets the sustain level for Envelope 1. Bottom = 0V (no sustain), Top = 8V maximum (unless scaled by LEVEL IN).516 |
| ENV 1 SPEED | switch | — | 516 |
| ENV 2 A | fader | — | 516 |
| ENV 2 D | fader | — | 516 |
| ENV 2 MANUAL GATE | button | — | 516 |
| ENV 2 PULSE SOURCE | switch | — | 3-position switch. LEFT: PULSE 1 is the HIGH gate (OR'd with ENV 2 GATE IN and MANUAL GATE). MID: PULSER ignored by Envelope 2. RIGHT: PULSE 2 is the HIGH gate.516 |
| ENV 2 R | fader | — | 516 |
| ENV 2 S | fader | — | 516 |
| ENV 2 SPEED | switch | — | 516 |
| PULSE OUT POLARITY | switch | — | UP (PULSE 1 = HIGH): PULSE OUT is HIGH during PULSE 1 and LOW during PULSE 2. DOWN (PULSE 2 = HIGH): PULSE OUT is LOW during PULSE 1 and HIGH during PULSE 2.516 |
| START Button | button | — | Starts a stopped single-shot PULSER or resets a running PULSER to the beginning of PULSE 1. OR'd with START jack.516 |
| T1 | knob | 1ms – 16000ms | Sets the length of PULSE 1. Clockwise = longer. Can be modulated via T1 CV IN with T1 CV attenuverter.516 |
| T1 CV Attenuverter | knob | — | Scales and inverts the T1 CV IN voltage. Fully CW = full CV range. Noon = CV fully attenuated (no effect). CCW from noon = inverted CV, increasing to full inverted range at fully CCW.516 |
| T2 | knob | ≥1ms | Sets the length of PULSE 2. In SINGLE mode: 1ms to ∞, with 2s at noon. In CYCLE mode: 1ms to 16s, with 2s at noon. Modulated via T2 CV IN or normalled T1 CV IN, scaled by T2 CV attenuverter.516 |
| T2 CV Attenuverter | knob | — | Scales and inverts the T2 CV IN voltage (or normalled T1 CV IN). Fully CW = full CV range. Noon = CV fully attenuated (no effect). CCW from noon = inverted CV, increasing to full inverted range at fully CCW.516 |
Firmware history 0 versions
No firmware history recorded.
References 2
- [516]
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[517]
Intellijel Tangrams product pageproduct_page⚠ verified 2026-05-19 · manufacturer changed since last verified