Enclosure not stated · 3 knobs
Mad Professor Amber OverdriveVerified
Based on the Mad Professor Amber Overdrive· 3 other boards clone it
From the post
Direct from the source:
One of the most sought after guitar tones is a combination of a great overdrive or fuzz pedal into overdriven tube amplifier. Amber Overdrive produces this sound even when running though a clean amplifier. It produces a very thick sound whether playing chords or single notes – fat and juicy with just a hint of fuzz.
Though highly saturated, this dynamic overdrive can be cleaned up with the volume control of your guitar. As with all Mad Professor pedals, it offers a wide range of dynamics and expressive touch sensitivity.
When you plug it into a clean amplifier, Amber Overdrive can give you the massive sound of a saturated amplifier running wide open. It can also be used as a slightly distorted boost to increase saturation on slightly overdriven amplifiers.
NOTICE: Amber Overdrive is a medium input impedance device that places a light load on your guitar pickups to produce a smoother tone. it will work best as the first pedal in the chain. if you run a buffered pedal ahead of Amber Overdrive you will get an increase in treble and upper midrange.
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 35 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
- 14.7k at column H, rows D-F: printed clearly, unusual value
- 6.8k at column F, rows B-D: the top of the first digit is partly hidden by the 10uF can, read as 6.8k (could be 5.8k)
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 15 | ||||
| ×3 | 100k | 100k | read from the layout by eye | |
| ×3 | 470k | 470k | read from the layout by eye | |
| ×2 | 1M | 1M | read from the layout by eye | |
| ×2 | 15k | 15k | one drawn standing; read from the layout by eye | |
| ×2 | 8.2k | 8.2k | read from the layout by eye | |
| ×2 | 100r | 100 | read from the layout by eye | |
| ×1 | 68k | 68k | read from the layout by eye | |
| ×1 | 47k | 47k | read from the layout by eye | |
| ×1 | 22k | 22k | read from the layout by eye | |
| ×1 | 14.7k | 14.7k | read from the layout by eye | |
| ×1 | 10k | 10k | read from the layout by eye | |
| ×1 | 6.8k | 6.8k | read from the layout by eye | |
| ×1 | 2k | 2k | read from the layout by eye | |
| ×1 | 470r | 470 | read from the layout by eye | |
| ×1 | 150r | 150 | read from the layout by eye | |
| Capacitors 9 | ||||
| ×3 | 100nF | 100n | read from the layout by eye | |
| ×1 | 220nF | 220n | read from the layout by eye | |
| ×1 | 47nF | 47n | read from the layout by eye | |
| ×1 | 15nF | 15n | read from the layout by eye | |
| ×1 | 10nF | 10n | read from the layout by eye | |
| ×1 | 470pF | 470p | read from the layout by eye | |
| ×1 | 330pF | 330p | read from the layout by eye | |
| ×3 | 1uF | 1u | electrolytic; read from the layout by eye | |
| ×1 | 10uF | 10u | electrolytic; read from the layout by eye | |
| Diodes 4 | ||||
| D1 | 2N3819 | 2N3819 | JFET used as a diode, drain and source connected; read from the layout by eye | |
| D2 | 2N3819 | 2N3819 | JFET used as a diode, drain and source connected; read from the layout by eye | |
| D3 | 1N4007 | 1N4007 | read from the layout by eye | |
| D4 | 1N4007 | 1N4007 | read from the layout by eye | |
| Transistors 4 | ||||
| Q1 | BC550C | BC550C | read from the layout by eye | |
| Q2 | BC550C | BC550C | read from the layout by eye | |
| Q3 | BC550C | BC550C | read from the layout by eye | |
| Q4 | 2N5485 | 2N5485 | JFET; read from the layout by eye | |
| Potentiometers 3 | ||||
| Volume | B100K | B100k | Potentiometer | read from the layout by eye |
| Tone | B100K | B100k | Potentiometer | read from the layout by eye |
| Sustain | A100K | A100k | Potentiometer | read from the layout by eye |
Other boards based on the Mad Professor Amber Overdrive
- Mad Professor Amber Overdrive Dirtbox Layouts
- Mad Professor Amber Drive Effects Layouts (blog)
- Resinite Overdrive PedalPCB · 125B · $8.00