1590A · 1 knob
MXR Micro AmpVerified
Based on the MXR Micro Amp· 9 other boards clone it
From the post
The Micro Amp is a classic clean boost circuit first introduced by MXR in the late 70s. It's a great option if you need to stomp on something for solos. Pretty simple op-amp design that should fit nicely in a 1590a.
Schematic
This is a board layout, a drawing of where each part goes, and the post may link the schematic it was drawn from. Open the layout at Effects Layouts (blog). No KiCad fragment has been drawn for this circuit yet.
Parts list 17 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 8 | ||||
| ×2 | 100K | 100k | read from the layout by eye | |
| ×1 | 10K | 10k | read from the layout by eye | |
| ×1 | 470Ω | 470 | read from the layout by eye | |
| ×1 | 56K | 56k | read from the layout by eye | |
| ×1 | 2.7K | 2.7k | read from the layout by eye | |
| ×1 | 1K | 1k | read from the layout by eye | |
| ×1 | 10M | 10M | read from the layout by eye | |
| ×1 | 2.2M | 2.2M | read from the layout by eye | |
| Capacitors 6 | ||||
| ×1 | 47pF | 47p | read from the layout by eye | |
| ×1 | 100nF | 100n | read from the layout by eye | |
| ×1 | 15uF | 15u | electrolytic; read from the layout by eye | |
| ×1 | 47uF | 47u | electrolytic; read from the layout by eye | |
| ×1 | 4.7uF | 4.7u | electrolytic; read from the layout by eye | |
| ×1 | 1uF | 1u | electrolytic; read from the layout by eye | |
| Diodes 1 | ||||
| ×1 | 1N4001 | 1N4001 | read from the layout by eye | |
| ICs 1 | ||||
| IC1 | LM741 | LM741 | legend: LM741, TL061, etc.; read from the layout by eye | |
| Potentiometers 1 | ||||
| Level | C500K | C500k | Potentiometer | read from the layout by eye |
Other boards based on the MXR Micro Amp
- MXR Micro Amp Dirtbox Layouts
- Micro MX Five Cats Pedals · 1590A · £4.00
- MicroAmp Fuzz Dog · 1590B · £21.60
- MXR Micro Amp General Guitar Gadgets · $11.00
- NostalgiTone PreAmp Boost Single: The Powerful Clean Boost of Legends GuitarPCB · 1590B · $8.95
- Massive Amp Mask Audio Electronics · 125B · $6.00
- MXR Micro Amp Tagboard Effects
- Micro Amp Booster Tayda Electronics (DHEA) · $5.00
- MXR MicroAmp Tonepad · $8.00