Enclosure not stated
45 to 90 hz hum filter
- Category
- EQ / Filter· Tone Control and EQs
- Price
- see vendor
- Tags
- Tone Control and EQs
Schematic
The schematic is the archived file. Open it at Experimentalists Anonymous, or browse its folder.
Parts list 10 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 5 | ||||
| ×1 | 620K | 620k | feedback across the twin-T; read from the schematic by eye | |
| ×1 | 4.7K | 4.7k | read from the schematic by eye | |
| ×1 | 75K | 75k | read from the schematic by eye | |
| ×1 | 2.2K | 2.2k | read from the schematic by eye | |
| ×2 | 100K | 100k | bias divider; read from the schematic by eye | |
| Capacitors 2 | ||||
| ×3 | .047uF | 47n | read from the schematic by eye | |
| ×1 | 10uF | 10u | electrolytic, bias filter; read from the schematic by eye | |
| ICs 1 | ||||
| ×1 | 741 | 741 | read from the schematic by eye | |
| Potentiometers 2 | ||||
| RV1 | 20K | 20k | Potentiometer | adjusts frequency 45 to 90 Hz; read from the schematic by eye |
| RV2 | 100 | 100 | Potentiometer | variable resistor, adjusts bandwidth; read from the schematic by eye |