Enclosure not stated · 1 knob
Anderton Frequency Booster
Based on the Anderton Frequency Booster
Schematic
The schematic is the archived file. Open it at Experimentalists Anonymous, or browse its folder.
Parts list 10 rows
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Check before you build · 1 value the reader of this schematic was not sure of
- C1/C2: value is chosen from the table (0.22uF/0.1uF/0.02uF/0.01uF/0.005uF), not fixed
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 4 | ||||
| ×1 | 10k | 10k | no designator; input, across C1+C2 (twin-T); read from the schematic by eye | |
| ×1 | 10k | 10k | no designator; op-amp inverting input to the switch; read from the schematic by eye | |
| ×1 | 10k | 10k | no designator; op-amp feedback; read from the schematic by eye | |
| ×1 | 5.6k | 5.6k | no designator; in series with the Boost pot; read from the schematic by eye | |
| Capacitors 3 | ||||
| C1 | ? | ? | select C1 = C2 for the center frequency: 0.22uF = 90 Hz, 0.1uF = 200Hz, 0.02uF = 1k, 0.01uF = 2k, 0.005uF = 4k; read from the schematic by eye | |
| C2 | ? | ? | select C1 = C2 for the center frequency: 0.22uF = 90 Hz, 0.1uF = 200Hz, 0.02uF = 1k, 0.01uF = 2k, 0.005uF = 4k; same value as C1; read from the schematic by eye | |
| ×1 | 2.2uF | 2.2u | no designator; output, electrolytic; read from the schematic by eye | |
| ICs 1 | ||||
| ×1 | FET op-amp | FET OP-AMP | no designator or part number; 'FET op-amp', dual +/-12V supply; read from the schematic by eye | |
| Potentiometers 1 | ||||
| Boost | 10k | 10k | Potentiometer | wired as a variable resistor, no taper given; read from the schematic by eye |
| Switches 1 | ||||
| ×1 | SPST | SPST | no designator; boost Off (on) switch to ground; read from the schematic by eye | |