Enclosure not stated · 1 knob
MXR Headphone Amp
Based on the MXR Headphone Amp· 2 other boards clone it
No longer listed General Guitar Gadgets stopped listing this boardafter 2026-10-11. It stays here for reference; the vendor page and build document links may no longer work.
From the vendor
The RTS (ready-to-solder) PCB for the MXR Headphone Amp Replica. The PCB dimensions are 3.0cm by 5.0cm. PCB has solder mask, plate-through holes and screen print for placement of components.
Click here for complete instructions for this PCB
Any trademarks mentioned here belong to their rightful owners and do not belong to General Guitar Gadgets.
Schematic
The schematic is in the vendor's build document, page 1. Open the build document. No KiCad fragment has been drawn for this circuit yet.
Parts list 25 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 13 | ||||
| R1 | 10M | 10M | ||
| R3 | 4k7 | 4.7k | ||
| R4 | 22M | 22M | ||
| R5 | 1k | 1k | ||
| R6 | 3K9 | 3.9k | ||
| R7 | 56k | 56k | ||
| R8 | 3K9 | 3.9k | ||
| R9 | 10k | 10k | ||
| R10 | 100 | 100 | ||
| R11 | 100 | 100 | ||
| R12 | 10k | 10k | ||
| R13 | 10k | 10k | ||
| R14 | 1k | 1k | ||
| Capacitors 6 | ||||
| C1 | 0.1ųF | 100n | ||
| C2 | 4.7ųF | 4.7u | ||
| C3 | 47ųF | 47u | ||
| C4 | 47ųF | 47u | ||
| C5 | 47ųF | 47u | ||
| C6 | 150pF | 150p | ||
| Diodes 2 | ||||
| D1 | 1N914 | 1N914 | ||
| D2 | 1N914 | 1N914 | ||
| Transistors 2 | ||||
| Q1 | 2N4401 | 2N4401 | ||
| Q2 | 2N4403 | 2N4403 | ||
| ICs 1 | ||||
| IC1 | TL071 | TL071 | ||
| Potentiometers 1 | ||||
| VOLUME | C500k | C500k | Potentiometer | |
Other boards based on the MXR Headphone Amp
- MXR Headphone Amp General Guitar Gadgets · $11.00
- MXR Headphone Amp Tagboard Effects