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Base pedal: Fortin Grind / 33
The Fortin Grind (and its sibling the 33) is a tight, high-gain boost/preamp beloved by modern metal players for its ability to tighten up amp response and add brutal chunk without getting flabby. Compared to the boutique originals — which command serious money — Isosceles puts that same razor-edged attack within DIY reach.
Component Name | Type | Default Part | Qty |
|---|---|---|---|
| 160R | RESISTOR | MFR-25-160R | 1 |
| 220R | RESISTOR | MFR-25-220R | 2 |
| 470R | RESISTOR | MFR-25-470R | 1 |
| 2K2 | RESISTOR | 1 | |
| 2K7 | RESISTOR | 1 | |
| 3K9 | RESISTOR | MFR-25-3K9 | 1 |
| 4K7 | RESISTOR | 3 | |
| 8K2 | RESISTOR | MFR-25-8K2 | 1 |
| 9K1 | RESISTOR | MFR-25-9K1 | 1 |
| 10K | RESISTOR | 1 | |
| 16K | RESISTOR | MFR-25-16K | 1 |
| 20K | RESISTOR | MFR-25-20K | 1 |
| 100K | RESISTOR | 3 | |
| 220K | RESISTOR | 1 | |
| 820K | RESISTOR | MFR-25-820K | 1 |
| 1M | RESISTOR | 1 | |
| 10M | RESISTOR | 1 | |
| 100p Ceramic | CAPACITOR | CERAMIC-100P | 1 |
| 4n7 Film | CAPACITOR | 1 | |
| 10n Film | CAPACITOR | 1 | |
| 22n Film | CAPACITOR | 1 | |
| 47n Film | CAPACITOR | 3 | |
| 100n Film | CAPACITOR | 1 | |
| 220n Film | CAPACITOR | 1 | |
| 470n Film | CAPACITOR | 1 | |
| 1u Electrolytic | CAPACITOR | ELECTRO-16V-1U | 1 |
| 4u7 Electrolytic | CAPACITOR | ELECTRO-16V-4U7 | 2 |
| 10u Electrolytic 25V | CAPACITOR | 2 | |
| 10u Electrolytic 35V | CAPACITOR | 3 | |
| 100u Electrolytic 35V | CAPACITOR | ELECTRO-35V-100U | 1 |
| TC1044SCPA | IC | TC1044SCPA | 1 |
| TL071 | IC | TL071 | 1 |
| BC550C | TRANSISTOR | BC550C | 1 |
| 1N4001 | DIODE | 1N4001 | 6 |
| 1N5817 | DIODE | 1N5817 | 1 |
| A5K 16mm | POTENTIOMETER | A5K-16MM | 1 |
| C50K 16mm | POTENTIOMETER | C50K-16MM | 2 |
| SPDT ON/ON | SWITCH | 2 |