Enclosure not stated · 2 knobs
Polyfusion Envelope Follower
- Category
- Wah / Envelope· ADSR Generators and Envelope Generators
- Controls
- Output Level · Gate Threshold
- Price
- see vendor
- Tags
- ADSR Generators and Envelope Generators
Schematic
The schematic is the archived file. Open it at Experimentalists Anonymous, or browse its folder.
Parts list 23 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 12 | ||||
| ×6 | 100K | 100k | 1%: input, second input, rectifier input, rectifier feedback, summing feedbacks (two); read from the schematic by eye | |
| ×3 | 100K | 100k | 741 feedback, 2N3904 base, comparator-to-buffer series; read from the schematic by eye | |
| ×2 | 51K | 51k | op amp + input bias resistors; read from the schematic by eye | |
| ×1 | 49.9K | 49.9k | 1%; read from the schematic by eye | |
| ×1 | 24K | 24k | read from the schematic by eye | |
| ×1 | 10K | 10k | 1%; read from the schematic by eye | |
| ×1 | 16.5K | 16.5k | 1%; read from the schematic by eye | |
| ×1 | 6.8K | 6.8k | read from the schematic by eye | |
| ×2 | 620 | 620 | CV and gate output resistors; read from the schematic by eye | |
| ×2 | 1.0K | 1k | LED series, threshold comparator; read from the schematic by eye | |
| ×1 | 470K | 470k | read from the schematic by eye | |
| ×1 | 10M | 10M | comparator hysteresis; read from the schematic by eye | |
| Capacitors 3 | ||||
| ×2 | 0.22uF | 220n | input coupling and SLOW response cap; read from the schematic by eye | |
| ×1 | 0.015uF | 15n | FAST response cap; read from the schematic by eye | |
| ×1 | 0.056uF | 56n | MED response cap; read from the schematic by eye | |
| Diodes 1 | ||||
| ×5 | 1N4148 | 1N4148 | two input clamps, two rectifier, one gate output clamp; read from the schematic by eye | |
| Transistors 1 | ||||
| ×1 | 2N3904 | 2N3904 | read from the schematic by eye | |
| ICs 2 | ||||
| ×1 | 741 | 741 | read from the schematic by eye | |
| ×3 | 1458 | 1458 | dual op amps labelled A, B, C, each used for two sections; read from the schematic by eye | |
| Potentiometers 2 | ||||
| Output Level | 100K | 100k | Potentiometer | read from the schematic by eye |
| Gate Threshold | 100K | 100k | Potentiometer | read from the schematic by eye |
| Switches 1 | ||||
| Response | SP3T | SP3T | rotary switch type ST2-6, Fast/Med/Slow; read from the schematic by eye | |
| LEDs 1 | ||||
| Gate Indicator | FLV-117 | FLV-117 | read from the schematic by eye | |