Enclosure not stated · 2 knobs
Madbean Holy Roller / Baja Optical LimiterVerified
Based on the BAJA Optical Limiter· 2 other boards clone it
- Category
- Compressor
- Controls
- Level · Limit
- Difficulty
- Medium
- Build
- Vero· 21×16· 27 cuts, 15 links
- Layout
- Verified · Tagboard Effects marks it as built and working
- Tags
- Compressor, Madbean
From the post
This is Brian's version of Bajaman Optical Limiter.
Here you can find the original thread.
Note:
You could swap D3 with 100R resistor and 100uF cap with 220uF if too noisy.
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 24 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 10 | ||||
| ×4 | 10K | 10k | read from the layout by eye | |
| ×4 | 560R | 560 | read from the layout by eye | |
| ×3 | 4K7 | 4.7k | read from the layout by eye | |
| ×2 | 68K | 68k | read from the layout by eye | |
| ×2 | 47K | 47k | read from the layout by eye | |
| ×2 | 1K5 | 1.5k | read from the layout by eye | |
| ×2 | 1K | 1k | read from the layout by eye | |
| ×1 | 1M | 1M | read from the layout by eye | |
| ×1 | 2K7 | 2.7k | read from the layout by eye | |
| ×1 | 100K | 100k | read from the layout by eye | |
| Capacitors 6 | ||||
| ×2 | 100n | 100n | read from the layout by eye | |
| ×1 | 10n | 10n | read from the layout by eye | |
| ×1 | 10p | 10p | read from the layout by eye | |
| ×1 | 1u | 1u | drawn as a film box; read from the layout by eye | |
| ×2 | 10u | 10u | electrolytic; read from the layout by eye | |
| ×1 | 100u | 100u | electrolytic; read from the layout by eye | |
| Diodes 2 | ||||
| ×2 | 1N914 | 1N914 | D1, D2; read from the layout by eye | |
| D3 | 1N5817 | 1N5817 | read from the layout by eye | |
| Transistors 1 | ||||
| ×1 | MPF102 | MPF102 | JFET; read from the layout by eye | |
| ICs 1 | ||||
| ×2 | LF353 | LF353 | read from the layout by eye | |
| Opto 1 | ||||
| LDR | 5K/500K | 5K/500K | legend: test different LDRs; read from the layout by eye | |
| Potentiometers 2 | ||||
| Level | B10K | B10k | Potentiometer | read from the layout by eye |
| Limit | B10K | B10k | Potentiometer | read from the layout by eye |
| LEDs 1 | ||||
| D4 | 5mm Yellow | 5MM YELLOW | on board, faces the LDR; legend: test different LEDs; read from the layout by eye | |
Other boards based on the BAJA Optical Limiter
- Baja Optical Limiter Effects Layouts (blog)
- Bajaman LA2A Style Optical Limiter rev2 Revolution Deux