Enclosure not stated · 2 knobs
MXR Custom Badass Modified O.D.Verified
Based on the MXR Custom Badass Modified OD· 3 other boards clone it
From the post
Next up in the MXR Custom Badass line is the Modified Overdrive—a classic overdrive circuit with modern modifications for improved performance and versatility.
For added flexibility, we’ve added a 100HZ cut and boost control that allows for a more focused EQ when cut, or a beefier tone when boosted. The Bump switch engages an alternate EQ voicing that boosts the lows and mids. Put it in front of the '78 Custom Badass Distortion for a slew of amp-like gain structures that won't mask your tone.
Experience overdrive nirvana courtesy of the MXR Custom Badass team.
“My tone has never been better, and I ain't just sayin that. That Badass Overdrive is THE BEST distortion tone I’ve ever had. Its amazing!” - Nashville session ace Chuck Ward.
Couple of the values may seem a bit off, so use the closest ones you have, like 27n for stated 28n and so on.
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 32 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
Check before you build · 4 values the reader of this layout was not sure of
- 28nF bottom left: printed clearly, unusual value
- 250nF top right beside the 24K: printed clearly, unusual value
- 250pF beside IC2: printed clearly, unusual value
- 110K right edge: printed clearly, unusual value
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 11 | ||||
| ×2 | 470Ω | 470 | read from the layout by eye | |
| ×2 | 4.7K | 4.7k | read from the layout by eye | |
| ×8 | 10K | 10k | read from the layout by eye | |
| ×1 | 22K | 22k | read from the layout by eye | |
| ×1 | 24K | 24k | read from the layout by eye | |
| ×1 | 33K | 33k | read from the layout by eye | |
| ×1 | 100K | 100k | read from the layout by eye | |
| ×1 | 110K | 110k | read from the layout by eye | |
| ×1 | 1M | 1M | read from the layout by eye | |
| ×1 | 1.5M | 1.5M | read from the layout by eye | |
| ×1 | 2.2M | 2.2M | read from the layout by eye | |
| Capacitors 11 | ||||
| ×1 | 250pF | 250p | read from the layout by eye | |
| ×1 | 10nF | 10n | read from the layout by eye | |
| ×2 | 18nF | 18n | read from the layout by eye | |
| ×1 | 28nF | 28n | read from the layout by eye | |
| ×2 | 47nF | 47n | read from the layout by eye | |
| ×1 | 250nF | 250n | read from the layout by eye | |
| ×1 | 1uF | 1u | read from the layout by eye | |
| ×1 | 3.3uF | 3.3u | electrolytic; read from the layout by eye | |
| ×1 | 4.7uF | 4.7u | 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 | ||||
| ×3 | 1N4148 | 1N4148 | D1, D2, D3; read from the layout by eye | |
| D4 | 1N5817 | 1N5817 | read from the layout by eye | |
| Transistors 1 | ||||
| ×1 | MPSA18 | MPSA18 | or similar NPN Si; read from the layout by eye | |
| ICs 2 | ||||
| IC1 | JRC4558 | JRC4558 | or similar (33178 in original); read from the layout by eye | |
| IC2 | JRC4558 | JRC4558 | or similar (33178 in original); read from the layout by eye | |
| Potentiometers 4 | ||||
| Gain | A1M | A1M | Potentiometer | read from the layout by eye |
| Tone | B20K | B20k | Potentiometer | read from the layout by eye |
| 100Hz | B20K | B20k | Potentiometer | read from the layout by eye |
| Output | B10K | B10k | Potentiometer | read from the layout by eye |
| Switches 1 | ||||
| Bump | SPST | SPST | read from the layout by eye | |
Other boards based on the MXR Custom Badass Modified OD
- MXR Custom Badass Modified OD Dirtbox Layouts
- MXR Custom Badass Modified OD Effects Layouts (blog) · 1590B
- Custom Badass Modified OD PCBWay: Glory to Ukraine