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Base pedal: BOSS® HM-2
Based on the BOSS HM-2, the Swedish chainsaw — the pedal behind the wall-of-guitars tone on countless death metal records, most famously the early Entombed albums. Scooped, grinding, and unmistakably mid-scooped, it's one of the most imitated sounds in heavy music, and this build is the DIY route to that iconic roar.
Component Name | Type | Default Part | Qty |
|---|---|---|---|
| 100R | RESISTOR | MFR-25-100R | 2 |
| 120R | RESISTOR | 1 | |
| 150R | RESISTOR | MFR-25-150R | 1 |
| 330R | RESISTOR | MFR-25-330R | 3 |
| 3K3 | RESISTOR | 2 | |
| 10K | RESISTOR | 11 | |
| 22K | RESISTOR | 2 | |
| 47K | RESISTOR | 1 | |
| 82K | RESISTOR | 1 | |
| 100K | RESISTOR | 5 | |
| 220K | RESISTOR | 1 | |
| 470K | RESISTOR | 2 | |
| 1M | RESISTOR | 4 | |
| 100p Ceramic | CAPACITOR | CERAMIC-100P | 3 |
| 330p Ceramic | CAPACITOR | CERAMIC-330P | 1 |
| 470p Ceramic | CAPACITOR | CERAMIC-470P | 1 |
| 1n Film | CAPACITOR | 2 | |
| 4n7 Film | CAPACITOR | 1 | |
| 6n8 Film | CAPACITOR | 1 | |
| 47n Film | CAPACITOR | 4 | |
| 68n Film | CAPACITOR | 1 | |
| 100n Film | CAPACITOR | 3 | |
| 150n Film | CAPACITOR | 1 | |
| 1u Electrolytic | CAPACITOR | ELECTRO-16V-1U | 2 |
| 1u5 Electrolytic | CAPACITOR | ELECTRO-16V-1U5 | 1 |
| 10u Electrolytic | CAPACITOR | ELECTRO-16V-10U | 1 |
| 100u Electrolytic | CAPACITOR | ELECTRO-16V-100U | 2 |
| TL072 | IC | TL072 | 4 |
| 2N3904 | TRANSISTOR | 2N3904 | 1 |
| 2N3906 | TRANSISTOR | 2N3906 | 1 |
| 2N5457 | TRANSISTOR | 2N5457 | 1 |
| 1N34A | DIODE | 1N34A | 2 |
| 1N4148 | DIODE | 1N4148 | 5 |
| 1N5817 | DIODE | 1N5817 | 1 |
| B10K 16mm | POTENTIOMETER | 3 | |
| A100K 16mm | POTENTIOMETER | 1 | |
| A250K 16mm | POTENTIOMETER | A250K-16MM | 1 |
| B1M 16mm | POTENTIOMETER | B1M-16MM | 1 |
| SPDT ON/ON | SWITCH | 2 |