1590B · 2 knobs
Maxon CP101 CompressorVerified
Based on the Maxon CP101 Compressor
- Category
- Compressor
- Build
- Perfboard
- Layout
- Verified · Effects Layouts (blog) marks it as built and working
- Tags
- Compressor, Maxon
From the post
Stumbled across the schematic for this compressor and couldn't find a layout for it. So I drew it up. This follows the original red box version, not the black box reissue. It's an optical compressor and apparently fairly subtle. I couldn't find any info on the vactrol used in the original–sockets are your friend. Should be an easy fit in a 1590B.
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 Effects Layouts (blog). 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 9 | ||||
| ×2 | 100Ω | 100 | read from the layout by eye | |
| ×1 | 470Ω | 470 | read from the layout by eye | |
| ×2 | 4.7K | 4.7k | read from the layout by eye | |
| ×4 | 10K | 10k | read from the layout by eye | |
| ×1 | 22K | 22k | read from the layout by eye | |
| ×1 | 47K | 47k | read from the layout by eye | |
| ×3 | 220K | 220k | read from the layout by eye | |
| ×2 | 470K | 470k | read from the layout by eye | |
| ×1 | 1M | 1M | read from the layout by eye | |
| Capacitors 4 | ||||
| ×2 | 47nF | 47n | read from the layout by eye | |
| ×4 | 1uF | 1u | electrolytic; read from the layout by eye | |
| ×1 | 10uF | 10u | electrolytic; read from the layout by eye | |
| ×2 | 47uF | 47u | electrolytic; read from the layout by eye | |
| Diodes 1 | ||||
| ×1 | 1N4001 | 1N4001 | read from the layout by eye | |
| Transistors 3 | ||||
| Q1 | 2N3904 | 2N3904 | NPN silicon (2N3904, 2N5088, etc); read from the layout by eye | |
| Q2 | 2N3904 | 2N3904 | NPN silicon (2N3904, 2N5088, etc); read from the layout by eye | |
| Q3 | 2N3904 | 2N3904 | NPN silicon (2N3904, 2N5088, etc); read from the layout by eye | |
| ICs 1 | ||||
| ×1 | UA741 | UA741 | read from the layout by eye | |
| Opto 1 | ||||
| ×1 | LDR | LDR | type not given; read from the layout by eye | |
| Potentiometers 2 | ||||
| Sustain | A250K | A250k | Potentiometer | read from the layout by eye |
| Level | B10K | B10k | Potentiometer | read from the layout by eye |
| Trimmers 1 | ||||
| ×1 | 500Ω | 500 | read from the layout by eye | |
| LEDs 1 | ||||
| ×1 | LED | LED | on board, drawn red, beside the LDR; read from the layout by eye | |