Enclosure not stated · 1 knob
Polyfusion Spring Reverb
- Category
- Reverb
- Controls
- Amount of Reverberation
- Price
- see vendor
- Tags
- Reverb
Schematic
The schematic is the archived file. Open it at Experimentalists Anonymous, or browse its folder.
Parts list 31 rows
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Check before you build · 2 values the reader of this schematic was not sure of
- 180K resistor: may be 100K (unity inverter)
- Q2: drawn 'Q8', taken as Q2
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 16 | ||||
| ×8 | 470 | 470 | read from the schematic by eye | |
| ×1 | 680 | 680 | output series resistor; read from the schematic by eye | |
| ×1 | 1K | 1k | CA3094 pin 8; read from the schematic by eye | |
| ×1 | 2K | 2k | CA3094 output load; read from the schematic by eye | |
| ×2 | 3.3K | 3.3k | Q1/Q2 emitter; read from the schematic by eye | |
| ×2 | 10K | 10k | 3080 output loads; read from the schematic by eye | |
| ×1 | 15K | 15k | CA3094 pin 5; read from the schematic by eye | |
| ×1 | 20K | 20k | read from the schematic by eye | |
| ×2 | 33K | 33k | read from the schematic by eye | |
| ×1 | 43K | 43k | read from the schematic by eye | |
| ×1 | 47K | 47k | CA3094 pin 1; read from the schematic by eye | |
| ×14 | 100K | 100k | read from the schematic by eye | |
| ×1 | 180K | 180k | feedback of second 1458A inverter; could be 100K; read from the schematic by eye | |
| ×1 | 300K | 300k | read from the schematic by eye | |
| ×1 | 360K | 360k | recovery amp feedback; read from the schematic by eye | |
| ×2 | 470K | 470k | balance trim feed; read from the schematic by eye | |
| Capacitors 3 | ||||
| ×1 | 2.2pF | 2.2p | drive-to-recovery bridge; read from the schematic by eye | |
| ×2 | .22uF | 220n | read from the schematic by eye | |
| ×3 | .1uF | 100n | read from the schematic by eye | |
| Diodes 1 | ||||
| ×2 | 1N4148 | 1N4148 | read from the schematic by eye | |
| Transistors 2 | ||||
| Q1 | 2N3906 | 2N3906 | read from the schematic by eye | |
| Q2 | 2N3906 | 2N3906 | drawn Q8, read as Q2; read from the schematic by eye | |
| ICs 4 | ||||
| ×1 | TL081 | TL081 | input buffer; read from the schematic by eye | |
| ×1 | CA3094 | CA3094 | drawn 3094; spring driver; read from the schematic by eye | |
| ×2 | 1458 | 1458 | four sections drawn (A/B twice); read from the schematic by eye | |
| ×2 | CA3080 | CA3080 | drawn 3080 A and 3080 B; single OTAs; read from the schematic by eye | |
| Potentiometers 1 | ||||
| Amount of Reverberation | B100K | B100k | Potentiometer | 100K lin; read from the schematic by eye |
| Trimmers 4 | ||||
| R. Gain | 2K | 2k | read from the schematic by eye | |
| D. Gain | 2K | 2k | read from the schematic by eye | |
| R. Bal. | 100K | 100k | read from the schematic by eye | |
| D. Bal. | 100K | 100k | read from the schematic by eye | |