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OA Based VCF
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- Other· Filters Wahs and VCFs
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- Filters Wahs and VCFs
Schematic
The schematic is the archived file. Open it at Experimentalists Anonymous, or browse its folder.
Parts list 33 rows
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Check before you build · 1 value the reader of this schematic was not sure of
- R17: drawn small, reads 11k
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 19 | ||||
| R1 | 10k | 10k | read from the schematic by eye | |
| R2 | 5k1 | 5.1k | read from the schematic by eye | |
| R3 | 10k | 10k | read from the schematic by eye | |
| R4 | 68k | 68k | read from the schematic by eye | |
| R5 | 470 | 470 | read from the schematic by eye | |
| R6 | 68k | 68k | read from the schematic by eye | |
| R7 | 470 | 470 | read from the schematic by eye | |
| R8 | 43k | 43k | read from the schematic by eye | |
| R9 | 470 | 470 | read from the schematic by eye | |
| R10 | 10k | 10k | read from the schematic by eye | |
| R11 | 3k | 3k | read from the schematic by eye | |
| R12 | 47k | 47k | read from the schematic by eye | |
| R13 | 180k | 180k | read from the schematic by eye | |
| R14 | 43k | 43k | read from the schematic by eye | |
| R15 | 820 | 820 | read from the schematic by eye | |
| R16 | 3k | 3k | read from the schematic by eye | |
| R17 | 11k | 11k | read from the schematic by eye | |
| R18 | 40k | 40k | read from the schematic by eye | |
| R19 | 150k | 150k | read from the schematic by eye | |
| Capacitors 2 | ||||
| C1 | 1n | 1n | read from the schematic by eye | |
| C2 | 1n | 1n | read from the schematic by eye | |
| Diodes 4 | ||||
| D1 | 2V7 | 2V7 | zener; read from the schematic by eye | |
| D2 | 2V7 | 2V7 | zener; read from the schematic by eye | |
| D3 | 3V3 | 3V3 | zener; read from the schematic by eye | |
| D4 | 5V6 | 5V6 | zener; read from the schematic by eye | |
| ICs 4 | ||||
| U1 | TL084 | TL084 | quad op amp; sections A, C, D used; read from the schematic by eye | |
| U2 | CA3080 | CA3080 | OTA; read from the schematic by eye | |
| U3 | CA3080 | CA3080 | OTA; read from the schematic by eye | |
| U4 | CA3080 | CA3080 | OTA; read from the schematic by eye | |
| LEDs 4 | ||||
| D5 | LED | LED | no part number given; drawn as LED in the tune CV shaping network; read from the schematic by eye | |
| D6 | LED | LED | no part number given; read from the schematic by eye | |
| D7 | LED | LED | no part number given; read from the schematic by eye | |
| D8 | LED | LED | no part number given; read from the schematic by eye | |