Enclosure not stated · 3 knobs
MXR ZW44 Zakk WyldeVerified
Based on the MXR ZW-44 Zakk Wylde Overdrive· 1 other board clones it
- Category
- Distortion
- Build
- Vero· 19×12· 14 cuts, 5 links
- Layout
- Verified · Tagboard Effects marks it as built and working
- Tags
- Distortion, MXR, Overdrive
From the post
OK you may not like the guy but this is a great sounding overdrive/distortion pedal. A modded and souped up Boss SD1 with no output buffer. I've added a clipping switch that will allow you to switch between the stock 3 diode asymmetrical arrangement, and a second arrangement of your choice. I've included 4 diodes to give a more compressed symmetrical clipping but put in there whatever you like, germaniums, schottky, LEDs, MOSFETS etc. I really like this pedal and have an original but will probably still build this up at some point anyway for the extra clipping options and because I hate the fact that the crappy bypass on the original meant that your signal chain was permanently connected to the effect input. Tsk!
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 23 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 8 | ||||
| ×3 | 4K7 | 4.7k | read from the layout by eye | |
| ×3 | 10K | 10k | read from the layout by eye | |
| ×3 | 33K | 33k | read from the layout by eye | |
| ×2 | 100K | 100k | read from the layout by eye | |
| ×1 | 22K | 22k | read from the layout by eye | |
| ×1 | 1M8 | 1.8M | read from the layout by eye | |
| ×1 | 2M2 | 2.2M | read from the layout by eye | |
| ×1 | 470R | 470 | read from the layout by eye | |
| Capacitors 8 | ||||
| ×4 | 47n | 47n | read from the layout by eye | |
| ×1 | 18n | 18n | read from the layout by eye | |
| ×1 | 10n | 10n | read from the layout by eye | |
| ×1 | 120p | 120p | read from the layout by eye | |
| ×1 | 3u3 | 3.3u | electrolytic; read from the layout by eye | |
| ×1 | 4u7 | 4.7u | electrolytic; read from the layout by eye | |
| ×1 | 10u | 10u | electrolytic; read from the layout by eye | |
| ×1 | 100u | 100u | electrolytic; read from the layout by eye | |
| Diodes 1 | ||||
| ×7 | 1N914 | 1N914 | D1-D7, mounted on the clipping switch; read from the layout by eye | |
| Transistors 1 | ||||
| Q1 | MPSA14 | MPSA14 | read from the layout by eye | |
| ICs 1 | ||||
| ×1 | MC33178P | MC33178P | legend: MC33178P (try RC4558P, NE5532 etc); read from the layout by eye | |
| Potentiometers 3 | ||||
| Gain | B1M | B1M | Potentiometer | read from the layout by eye |
| Tone | B20K | B20k | Potentiometer | read from the layout by eye |
| Volume | B10K | B10k | Potentiometer | read from the layout by eye |
| Switches 1 | ||||
| Clipping | DPDT on/on | DPDT ON/ON | asymmetrical / symmetrical clipping, 2 position; read from the layout by eye | |
Other boards based on the MXR ZW-44 Zakk Wylde Overdrive
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