Enclosure not stated · 3 knobs
Micro Amp Plus ( M233 )
Based on the MXR Micro Amp Plus· 3 other boards clone it
- Category
- Boost
- Price
- see vendorin stock
- Tags
- MXR
From the vendor
MXR MICRO AMP+ M233
The Micro Amp+ upgrades a classic boost circuit with EQ controls, low-noise op-amps, and true bypass switching to take this powerful boost box to the next level.
Schematic
The schematic image is on the project page. Open it at PCBWay.
Parts list 27 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 13 | ||||
| ×1 | 47 | 47 | read from the schematic by eye | |
| ×1 | 4k7 | 4.7k | LED resistor; read from the schematic by eye | |
| ×2 | 100k | 100k | read from the schematic by eye | |
| ×1 | 2M | 2M | read from the schematic by eye | |
| ×1 | 1M | 1M | read from the schematic by eye | |
| ×2 | 10k | 10k | read from the schematic by eye | |
| ×1 | 56k | 56k | read from the schematic by eye | |
| ×1 | 2k7 | 2.7k | read from the schematic by eye | |
| ×2 | 2k2 | 2.2k | read from the schematic by eye | |
| ×1 | 750 | 750 | read from the schematic by eye | |
| ×1 | 560 | 560 | read from the schematic by eye | |
| ×1 | 82k | 82k | read from the schematic by eye | |
| ×1 | 470 | 470 | read from the schematic by eye | |
| Capacitors 8 | ||||
| ×1 | 100u | 100u | read from the schematic by eye | |
| ×1 | 10u | 10u | read from the schematic by eye | |
| ×2 | 100n | 100n | read from the schematic by eye | |
| ×1 | 47p | 47p | read from the schematic by eye | |
| ×1 | 4u7 | 4.7u | read from the schematic by eye | |
| ×1 | 2n2 | 2.2n | read from the schematic by eye | |
| ×2 | 22u | 22u | read from the schematic by eye | |
| ×1 | 22n | 22n | read from the schematic by eye | |
| Diodes 1 | ||||
| ×1 | 1N4001 | 1N4001 | read from the schematic by eye | |
| ICs 2 | ||||
| ×1 | TL072 | TL072 | one section is the VB buffer, the other the gain stage; read from the schematic by eye | |
| ×1 | LM833 | LM833 | both sections in the tone stage; read from the schematic by eye | |
| Potentiometers 3 | ||||
| Gain | C500k | C500k | Potentiometer | read from the schematic by eye |
| Treble | W20k | W20k | Potentiometer | read from the schematic by eye |
| Bass | W20k | W20k | Potentiometer | read from the schematic by eye |
Other boards based on the MXR Micro Amp Plus
- MXR Micro Amp Plus Dirtbox Layouts
- MicroAmpPlus Fuzz Dog · 1590B · £28.80
- Micro-Addition Boost PedalPCB · 125B · $10.00