Enclosure not stated · 4 knobs
One Control / BJF Anodized Brown Distortion 4KVerified
Based on the One Control BJF Anodized Brown Distortion 4K
- Category
- Distortion
- Build
- Vero· 18×17· 18 cuts, 9 links
- Layout
- Verified · Dirtbox Layouts marks it as built and working
- Tags
- BJF/MP/Bearfoot, Distortion, One Control
From the post
So....I'm back. Decided to take screen detox for a while.The backlog of layouts is quite big at the moment so you can expect plenty of them the next coming days. I'll wil go through the blog comments for verifications but I'm sure I will miss some so don't hesitate to give a shout out if there is something I've missed... First out is One Control Anodized Brown Distortion, Björn Juhl's take on a "Brown-Sound-In-A-Box". As usual there are some intereting design quirks here, most notable being the J FET gyrator ( which runs on 5v, hence the voltage regulator) for the Mid control and the RC filter in parallel with the hard clipping section. The schematic can be found HERE
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 Dirtbox Layouts. 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 · 2 values the reader of this layout was not sure of
- IC1 on the board vs 'IC2: TL072' in the legend: taken as the same single op-amp
- 430K x2 at columns 13-14 rows D-H: printed clearly, unusual value
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 14 | ||||
| ×1 | 47Ω | 47 | read from the layout by eye | |
| ×1 | 150Ω | 150 | read from the layout by eye | |
| ×2 | 1K | 1k | read from the layout by eye | |
| ×1 | 3K | 3k | read from the layout by eye | |
| ×1 | 5.1K | 5.1k | read from the layout by eye | |
| ×1 | 8.2K | 8.2k | read from the layout by eye | |
| ×2 | 10K | 10k | read from the layout by eye | |
| ×1 | 24K | 24k | read from the layout by eye | |
| ×1 | 27K | 27k | read from the layout by eye | |
| ×1 | 150K | 150k | read from the layout by eye | |
| ×1 | 200K | 200k | read from the layout by eye | |
| ×1 | 240K | 240k | read from the layout by eye | |
| ×1 | 390K | 390k | read from the layout by eye | |
| ×2 | 430K | 430k | read from the layout by eye | |
| Capacitors 9 | ||||
| ×1 | 1nF | 1n | read from the layout by eye | |
| ×1 | 6.8nF | 6.8n | read from the layout by eye | |
| ×1 | 22nF | 22n | read from the layout by eye | |
| ×1 | 39nF | 39n | read from the layout by eye | |
| ×2 | 68nF | 68n | read from the layout by eye | |
| ×1 | 100nF | 100n | read from the layout by eye | |
| ×3 | 1uF | 1u | electrolytic; read from the layout by eye | |
| ×2 | 4.7uF | 4.7u | electrolytic; read from the layout by eye | |
| ×1 | 100uF | 100u | electrolytic; read from the layout by eye | |
| Diodes 2 | ||||
| ×2 | 1N4148 | 1N4148 | D1, D2; read from the layout by eye | |
| D3 | 1N4007 | 1N4007 | read from the layout by eye | |
| Transistors 1 | ||||
| Q1 | J113 | J113 | JFET; read from the layout by eye | |
| ICs 2 | ||||
| IC1 | TL072 | TL072 | legend says IC2: TL072; read from the layout by eye | |
| REG | 78L05 | 78L05 | regulator; read from the layout by eye | |
| Potentiometers 4 | ||||
| Gain | C5K | C5k | Potentiometer | read from the layout by eye |
| Treble | B5K | B5k | Potentiometer | read from the layout by eye |
| Mid | B25K | B25k | Potentiometer | read from the layout by eye |
| Volume | B50K | B50k | Potentiometer | read from the layout by eye |