Enclosure not stated · 2 knobs
DOD Compressor 280Verified
Based on the DOD 280 Compressor· 5 other boards clone it
- Category
- Compressor
- Build
- Vero· 18×13· 14 cuts, 9 links
- Layout
- Verified · Dirtbox Layouts marks it as built and working
- Tags
- Compressor, DOD
From the post
Yet another compressor, this time an optical one. The specified vactrol is quite expensive and hard to get hold of nowadays but you can roll your own using a LDR with 1M dark resistance and green diffused LED.
Demo by Ian!
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 19 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
Check before you build · 1 value the reader of this layout was not sure of
- Diode at the top right (row A, columns 15-16) is printed D2 on the board but the legend only gives 'D1: 1N5817'; taken as the same part, 1N5817
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 8 | ||||
| ×1 | 1M | 1M | read from the layout by eye | |
| ×1 | 4.7K | 4.7k | read from the layout by eye | |
| ×2 | 100K | 100k | read from the layout by eye | |
| ×3 | 22K | 22k | read from the layout by eye | |
| ×2 | 220K | 220k | read from the layout by eye | |
| ×1 | 2.2M | 2.2M | read from the layout by eye | |
| ×1 | 470K | 470k | read from the layout by eye | |
| ×1 | 10K | 10k | read from the layout by eye | |
| Capacitors 4 | ||||
| ×4 | 47nF | 47n | read from the layout by eye | |
| ×1 | 10nF | 10n | read from the layout by eye | |
| ×2 | 10uF | 10u | electrolytic; read from the layout by eye | |
| ×1 | 47uF | 47u | electrolytic; read from the layout by eye | |
| Diodes 1 | ||||
| D2 | 1N5817 | 1N5817 | printed D2 on the board, legend says D1: 1N5817; read from the layout by eye | |
| Transistors 2 | ||||
| Q1 | 2N3904 | 2N3904 | 2N3904, 2N5088 etc. (NP2141 in original); read from the layout by eye | |
| Q2 | 2N3904 | 2N3904 | 2N3904, 2N5088 etc. (NP2141 in original); read from the layout by eye | |
| ICs 1 | ||||
| IC1 | LM358 | LM358 | read from the layout by eye | |
| Opto 1 | ||||
| Vactrol | VTL5C2 | VTL5C2 | or LDR-LED combo; read from the layout by eye | |
| Potentiometers 2 | ||||
| Comp | B500K | B500k | Potentiometer | read from the layout by eye |
| Level | A100K | A100k | Potentiometer | read from the layout by eye |
Other boards based on the DOD 280 Compressor
- DOD 280 Compressor Effects Layouts (blog)
- Compressor 280 (TonePad) PCBWay: Glory to Ukraine
- Compressor 280 LDR (TonePad) PCBWay: Glory to Ukraine
- DOD 280 Compressor Tagboard Effects
- DOD 280 Compressor Tonepad · $8.00