Enclosure not stated · 3 knobs
Skreddy MayonaiseVerified
Based on the Skreddy Mayonaise
From the post
I may as well add some of the others while I'm at it! :o)
From the Skreddy website: A vintage, 4-transistor distortion, made with meticulous regard to detail. All audio electronics are the same as used circa 1971. Modern upgrades include DC power, LED on/off indicator, and true bypass switching.
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 30 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
Check before you build · 2 values the reader of this layout was not sure of
- 4n cap in the middle of the board (between the long link column and the 100n/18K, right of Q4's 390K): printed as '4n', probably a truncated 4n7
- 500p x3: printed clearly, unusual value
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 10 | ||||
| ×4 | 100K | 100k | read from the layout by eye | |
| ×3 | 33K | 33k | 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 | 10K | 10k | read from the layout by eye | |
| ×2 | 18K | 18k | read from the layout by eye | |
| ×2 | 8K2 | 8.2k | read from the layout by eye | |
| ×1 | 2K7 | 2.7k | read from the layout by eye | |
| ×1 | 390K | 390k | read from the layout by eye | |
| ×1 | 820R | 820 | read from the layout by eye | |
| Capacitors 7 | ||||
| ×8 | 100n | 100n | read from the layout by eye | |
| ×3 | 500p | 500p | legend: swap for 220p to 560p to suit transistors; read from the layout by eye | |
| ×1 | 4n | 4n | read from the layout by eye | |
| ×1 | 10n | 10n | read from the layout by eye | |
| ×1 | 100u | 100u | electrolytic; read from the layout by eye | |
| ×1 | 4n7 | 4.7n | on the mids switch; read from the layout by eye | |
| ×1 | 10n | 10n | on the mids switch; 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 | 1N5817 | 1N5817 | read from the layout by eye | |
| Transistors 4 | ||||
| Q1 | 2N5133 | 2N5133 | 600 - 700 hfe alt.; read from the layout by eye | |
| Q2 | 2N5133 | 2N5133 | 600 - 700 hfe alt.; read from the layout by eye | |
| Q3 | 2N5133 | 2N5133 | 600 - 700 hfe alt.; read from the layout by eye | |
| Q4 | 2N5133 | 2N5133 | 600 - 700 hfe alt.; 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 | Scooped / Flat / Boosted mids, 3 pos DPDT; read from the layout by eye | |