Enclosure not stated · 3 knobs
Maestro Brassmaster MOJO layout
Based on the Maestro Brassmaster· 6 other boards clone it
- Category
- Fuzz
- Controls
- Sensitivity · Brass · Bass
- Build
- Vero· 35×26· 34 cuts, 14 links
- Layout
- Unverified · no build reported at Dirtbox Layouts yet
- Tags
- Fuzz, Maestro, MOJO, Octave
From the post
Compact layout avaiable HERE.
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 Dirtbox Layouts. No KiCad fragment has been drawn for this circuit yet.
Parts list 41 rows
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Check before you build · 1 value the reader of this layout was not sure of
- Transistor designators: the labels above the board are Q2, Q4 (column 9) and Q4 again (column 28), with no Q3 printed; which of the two is Q3 cannot be told from the drawing. All six are the same type per the legend, so the parts list is unaffected.
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 19 | ||||
| ×2 | 1.5M | 1.5M | read from the layout by eye | |
| ×1 | 1M | 1M | read from the layout by eye | |
| ×1 | 470K | 470k | read from the layout by eye | |
| ×2 | 220K | 220k | read from the layout by eye | |
| ×3 | 150K | 150k | read from the layout by eye | |
| ×1 | 82K | 82k | read from the layout by eye | |
| ×3 | 47K | 47k | read from the layout by eye | |
| ×1 | 22K | 22k | read from the layout by eye | |
| ×2 | 12K | 12k | read from the layout by eye | |
| ×3 | 10K | 10k | read from the layout by eye | |
| ×2 | 6.8K | 6.8k | read from the layout by eye | |
| ×1 | 4.7K | 4.7k | read from the layout by eye | |
| ×1 | 3.3K | 3.3k | read from the layout by eye | |
| ×3 | 2.2K | 2.2k | read from the layout by eye | |
| ×1 | 1K | 1k | read from the layout by eye | |
| ×1 | 820Ω | 820 | read from the layout by eye | |
| ×1 | 470Ω | 470 | read from the layout by eye | |
| ×1 | 390Ω | 390 | read from the layout by eye | |
| ×1 | 150Ω | 150 | read from the layout by eye | |
| Capacitors 7 | ||||
| ×2 | 4.7nF | 4.7n | read from the layout by eye | |
| ×2 | 10nF | 10n | read from the layout by eye | |
| ×2 | 47nF | 47n | read from the layout by eye | |
| ×4 | 100nF | 100n | read from the layout by eye | |
| ×5 | 1uF | 1u | electrolytic; read from the layout by eye | |
| ×1 | 10uF | 10u | electrolytic; read from the layout by eye | |
| ×1 | 100uF | 100u | electrolytic; read from the layout by eye | |
| Diodes 2 | ||||
| ×4 | 1N4148 | 1N4148 | D1-D4; read from the layout by eye | |
| D5 | 1N5817 | 1N5817 | read from the layout by eye | |
| Transistors 7 | ||||
| Q1 | 2N3904 | 2N3904 | 2N3904, 2N5088 etc. (2N3392 in original); read from the layout by eye | |
| Q2 | 2N3904 | 2N3904 | 2N3904, 2N5088 etc. (2N3392 in original); read from the layout by eye | |
| Q3 | 2N3904 | 2N3904 | 2N3904, 2N5088 etc. (2N3392 in original); drawn labelled Q4 a second time; read from the layout by eye | |
| Q4 | 2N3904 | 2N3904 | 2N3904, 2N5088 etc. (2N3392 in original); read from the layout by eye | |
| Q5 | MPSA12 | MPSA12 | MPSA12,13,14, BC517 etc. (2N5308 in original); Darlington; read from the layout by eye | |
| Q6 | 2N3904 | 2N3904 | 2N3904, 2N5088 etc. (2N3392 in original); read from the layout by eye | |
| Q7 | 2N3904 | 2N3904 | 2N3904, 2N5088 etc. (2N3392 in original); read from the layout by eye | |
| Transformers 1 | ||||
| T1 | 42TM018 | 42TM018 | printed "TI." on the board and in the legend; read from the layout by eye | |
| Potentiometers 3 | ||||
| Sensitivity | B10K | B10k | Potentiometer | read from the layout by eye |
| Brass | B10K | B10k | Potentiometer | read from the layout by eye |
| Bass | B10K | B10k | Potentiometer | read from the layout by eye |
| Switches 2 | ||||
| Brass Sw | 3PDT on/on | 3PDT ON/ON | toggle; read from the layout by eye | |
| Harmonic Sw | SPST | SPST | toggle; read from the layout by eye | |
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