Enclosure not stated
CA3080 State Variable Filter
- Category
- EQ / Filter· Filters Wahs and VCFs
- Price
- see vendor
- Tags
- Filters Wahs and VCFs
Schematic
The schematic is the archived file. Open it at Experimentalists Anonymous, or browse its folder.
Parts list 18 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 10 | ||||
| R1 | 100k | 100k | read from the schematic by eye | |
| R2 | 100k | 100k | read from the schematic by eye | |
| R3 | 24k | 24k | read from the schematic by eye | |
| R4 | 24k | 24k | read from the schematic by eye | |
| R5 | 200 | 200 | read from the schematic by eye | |
| R6 | 200 | 200 | read from the schematic by eye | |
| R7 | 100k | 100k | read from the schematic by eye | |
| R9 | 100k | 100k | read from the schematic by eye | |
| R10 | 100k | 100k | read from the schematic by eye | |
| R11 | 100k | 100k | read from the schematic by eye | |
| Capacitors 2 | ||||
| C1 | 300pF | 300p | read from the schematic by eye | |
| C2 | 300pF | 300p | read from the schematic by eye | |
| ICs 5 | ||||
| U1 | UA741 | UA741 | op amp; note suggests TL082, CA3140 or CA3240 instead; read from the schematic by eye | |
| U2 | UA741 | UA741 | op amp; 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 | |
| U5 | UA741 | UA741 | op amp; read from the schematic by eye | |
| Potentiometers 1 | ||||
| R8 | 100k | 100k | Potentiometer | band-pass feedback (resonance/Q) control, drawn as variable resistor; read from the schematic by eye |