Enclosure not stated · 2 knobs
Maestro MPF-1Verified
Based on the Maestro MPF-1· 1 other board clones it
- Category
- EQ / Filter
- Controls
- Frequency · Height
- Difficulty
- Difficult
- Build
- Vero· 21×26· 43 cuts, 21 links
- Layout
- Verified · Tagboard Effects marks it as built and working
- Tags
- Filter, Maestro
From the post
17/10/2015: Layout updated and verified!
Changed 2 components values and added an extra capacitor on Bre's suggestion.
Thanks to Bre for the help and for verifying this!
- Changed 22u cap from pin9 to 2u2.
- Added a 2u2 cap between diodes and ground.
- Changed 4007N to 4007UBE.
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 Tagboard Effects. No KiCad fragment has been drawn for this circuit yet.
Parts list 39 rows
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Check before you build · 4 values the reader of this layout was not sure of
- 110K, top centre next to a 10K: printed clearly, unusual value
- 500p ceramic, left side below the 3M3: printed clearly, unusual value
- 43K and 20K, bottom right: printed clearly, unusual values
- 2M2 above the 15n ceramic is drawn translucent over a cut; counted as a real part
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 20 | ||||
| ×5 | 10K | 10k | read from the layout by eye | |
| ×4 | 2M2 | 2.2M | read from the layout by eye | |
| ×4 | 22K | 22k | read from the layout by eye | |
| ×3 | 1M | 1M | read from the layout by eye | |
| ×2 | 33K | 33k | read from the layout by eye | |
| ×2 | 100K | 100k | read from the layout by eye | |
| ×2 | 1K6 | 1.6k | read from the layout by eye | |
| ×2 | 2K | 2k | read from the layout by eye | |
| ×2 | 330R | 330 | read from the layout by eye | |
| ×1 | 3M3 | 3.3M | read from the layout by eye | |
| ×1 | 4M7 | 4.7M | read from the layout by eye | |
| ×1 | 5K6 | 5.6k | read from the layout by eye | |
| ×1 | 110K | 110k | read from the layout by eye | |
| ×1 | 2K2 | 2.2k | read from the layout by eye | |
| ×1 | 1K | 1k | read from the layout by eye | |
| ×1 | 3K3 | 3.3k | read from the layout by eye | |
| ×1 | 43K | 43k | read from the layout by eye | |
| ×1 | 15K | 15k | read from the layout by eye | |
| ×1 | 4K7 | 4.7k | read from the layout by eye | |
| ×1 | 20K | 20k | read from the layout by eye | |
| Capacitors 11 | ||||
| ×2 | 10n | 10n | read from the layout by eye | |
| ×2 | 22n | 22n | read from the layout by eye | |
| ×2 | 220n | 220n | read from the layout by eye | |
| ×1 | 100n | 100n | read from the layout by eye | |
| ×1 | 390n | 390n | read from the layout by eye | |
| ×1 | 500p | 500p | read from the layout by eye | |
| ×1 | 15n | 15n | read from the layout by eye | |
| ×1 | 1n2 | 1.2n | read from the layout by eye | |
| ×1 | 100p | 100p | read from the layout by eye | |
| ×4 | 2u2 | 2.2u | electrolytic; read from the layout by eye | |
| ×3 | 10u | 10u | electrolytic; read from the layout by eye | |
| Diodes 2 | ||||
| D1 | 1N4148 | 1N4148 | read from the layout by eye | |
| D2 | 1N4148 | 1N4148 | read from the layout by eye | |
| ICs 2 | ||||
| ×1 | 4007UBE | 4007UBE | CD4007UBE; read from the layout by eye | |
| ×2 | TL022 | TL022 | read from the layout by eye | |
| Potentiometers 2 | ||||
| Frequency | C100K | C100k | Potentiometer | dual; read from the layout by eye |
| Height | B10K | B10k | Potentiometer | read from the layout by eye |
| Switches 2 | ||||
| Switch 1 (Clean/Dirty) | SPDT | SPDT | read from the layout by eye | |
| Switch 2 (Broad/Med/Sharp) | DPDT on/off/on | DPDT ON/OFF/ON | read from the layout by eye | |
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