Enclosure not stated · 3 knobs
Skreddy MayoVerified
Based on the Skreddy Mayo· 2 other boards clone it
From the post
I've done a few Skreddy layouts, but to be fair to the man here's one of his discontinued effects to start off with. If you want to build an authentic one using the original transistors you'll need to find some high gain 2N5133s to use. You do find them on eBay but the last seller I questioned said the hfe was about half what you really need for a good muff and he was charging a fortune, so buyers beware of eBay mojo.
If you're not bothered about the transistors, just use 2N5088s or 5089s and enjoy! :o)
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 33 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 11 | ||||
| ×3 | 100K | 100k | read from the layout by eye | |
| ×2 | 2K7 | 2.7k | read from the layout by eye | |
| ×3 | 8K2 | 8.2k | read from the layout by eye | |
| ×3 | 33K | 33k | read from the layout by eye | |
| ×1 | 390K | 390k | read from the layout by eye | |
| ×3 | 470K | 470k | read from the layout by eye | |
| ×3 | 100R | 100 | read from the layout by eye | |
| ×2 | 18K | 18k | read from the layout by eye | |
| ×1 | 10K | 10k | read from the layout by eye | |
| ×1 | 56K | 56k | read from the layout by eye | |
| ×1 | 820R | 820 | read from the layout by eye | |
| Capacitors 9 | ||||
| ×4 | 100n | 100n | read from the layout by eye | |
| ×1 | 47p | 47p | read from the layout by eye | |
| ×3 | 470p | 470p | read from the layout by eye | |
| ×1 | 10n | 10n | read from the layout by eye | |
| ×1 | 4n7 | 4.7n | read from the layout by eye | |
| ×4 | 220n | 220n | read from the layout by eye | |
| ×1 | 100u | 100u | electrolytic; read from the layout by eye | |
| ×1 | 4n7 | 4.7n | off-board, on the mids switch (scoop); read from the layout by eye | |
| ×1 | 10n | 10n | off-board, on the mids switch (boost); read from the layout by eye | |
| Diodes 5 | ||||
| D1 | 1N914 | 1N914 | read from the layout by eye | |
| D2 | 1N914 | 1N914 | read from the layout by eye | |
| D3 | 1N914 | 1N914 | read from the layout by eye | |
| D4 | 1N914 | 1N914 | read from the layout by eye | |
| Dx | 1N4001 | 1N4001 | read from the layout by eye | |
| Transistors 4 | ||||
| Q1 | 2N5133 | 2N5133 | read from the layout by eye | |
| Q2 | 2N5133 | 2N5133 | read from the layout by eye | |
| Q3 | 2N5133 | 2N5133 | read from the layout by eye | |
| Q4 | 2N5133 | 2N5133 | read from the layout by eye | |
| Potentiometers 3 | ||||
| Sustain | B100K | B100k | Potentiometer | read from the layout by eye |
| Tone | B100K | B100k | Potentiometer | read from the layout by eye |
| Volume | B100K | B100k | Potentiometer | read from the layout by eye |
| Switches 1 | ||||
| Mids | DPDT on/off/on | DPDT ON/OFF/ON | toggle, 3 pos DPDT: scooped / flat / boosted mids; read from the layout by eye | |
Other boards based on the Skreddy Mayo
- Skreddy Mayo Dirtbox Layouts
- Skreddy Mayo Revolution Deux