Enclosure not stated · 3 knobs
From the vendor
The Box of Rock pedal is designed to emulate the classic JTM45 tone. It offers great headroom and allows you to control the distortion level directly from the guitar's volume knob. This project simplifies the original circuit by removing the boost stage, fitting into a 1590B enclosure with three control knobs.
Schematic
The schematic is in the vendor's build document. Open the build document. No KiCad fragment has been drawn for this circuit yet.
Parts list 39 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 18 | ||||
| R1 | 1M | 1M | 1M Ohm 1/4W 1% Metal Film Resistor | |
| R2 | 1M | 1M | 1M Ohm 1/4W 1% Metal Film Resistor | |
| R3 | 1M | 1M | 1M Ohm 1/4W 1% Metal Film Resistor | |
| R4 | 5.1k | 5.1k | 5.1K Ohm 1/4W 1% Metal Film Resistor | |
| R5 | 470k | 470k | 470K Ohm 1/4W 1% Metal Film Resistor | |
| R6 | 1M | 1M | 1M Ohm 1/4W 1% Metal Film Resistor | |
| R7 | 1M | 1M | 1M Ohm 1/4W 1% Metal Film Resistor | |
| R8 | 5.1k | 5.1k | 5.1K Ohm 1/4W 1% Metal Film Resistor | |
| R9 | 100 | 100 | 100 Ohm 1/4W 1% Metal Film Resistor | |
| R10 | 1M | 1M | 1M Ohm 1/4W 1% Metal Film Resistor | |
| R11 | 1M | 1M | 1M Ohm 1/4W 1% Metal Film Resistor | |
| R12 | 5.1k | 5.1k | 5.1K Ohm 1/4W 1% Metal Film Resistor | |
| R13 | 330 | 330 | 330 Ohm 1/4W 1% Metal Film Resistor | |
| R14 | 47k | 47k | 47K Ohm 1/4W 1% Metal Film Resistor | |
| R15 | 82k | 82k | 82K Ohm 1/4W 1% Metal Film Resistor | |
| R16 | 10k | 10k | 10K Ohm 1/4W 1% Metal Film Resistor | |
| R17 | 10k | 10k | 10K Ohm 1/4W 1% Metal Film Resistor | |
| R23 | 82 | 82 | 82 Ohm 1/4W 1% Metal Film Resistor | |
| Capacitors 12 | ||||
| C1 | 100n | 100n | 100Nf 100V 5% Polyester Film Box Type Capacitor | |
| C2 | 22n | 22n | 22Nf 100V 5% Polyester Film Box Type Capacitor | |
| C3 | 470p | 470p | 470Pf 50V Ceramic Disc Capacitor | |
| C4 | 22n | 22n | 22Nf 100V 5% Polyester Film Box Type Capacitor | |
| C5 | 1u | 1u | 1Uf 100V 5% Polyester Film Box Type Capacitor | |
| C6 | 10n | 10n | 10Nf 100V 5% Polyester Film Box Type Capacitor | |
| C7 | 22n | 22n | 22Nf 100V 5% Polyester Film Box Type Capacitor | |
| C8 | 1n | 1n | 1Nf 100V 5% Polyester Film Box Type Capacitor | |
| C9 | 1n | 1n | 1Nf 100V 5% Polyester Film Box Type Capacitor | |
| C12 | 47u | 47u | 47Uf 25V Electrolytic Capacitor 5X11Mm | |
| C13 | 1n | 1n | 1Nf 100V 5% Polyester Film Box Type Capacitor | |
| C14 | 1n | 1n | 1Nf 100V 5% Polyester Film Box Type Capacitor | |
| Diodes 3 | ||||
| D1 | 1N4739A | 1N4739A / 9V1 | 1N4739A 1N4739 Zener Diode 9.1V 1W | |
| D2 | 1N4739A | 1N4739A / 9V1 | 1N4739A 1N4739 Zener Diode 9.1V 1W | |
| D3 | 1N4001 | 1N4001 | 1N4001 Diode 1A 50V | |
| Transistors 3 | ||||
| Q1 | BS170 | BS170 | Bs170 Bs170Rlrag Mosfet N-Channel | |
| Q2 | BS170 | BS170 | Bs170 Bs170Rlrag Mosfet N-Channel | |
| Q3 | BS170 | BS170 | Bs170 Bs170Rlrag Mosfet N-Channel | |
| Potentiometers 3 | ||||
| Vol | 100k-A | A100k | 100K Ohm Log Potentiometer | |
| Tone | 100k-B | B100k | 100K Ohm Linear Potentiometer | |
| Gain | 5k-C | C5k | 5K Ohm Anti-Log Potentiometer | |
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