Enclosure not stated · 4 knobs
Boss CS-3
Based on the Boss CS-3· 1 other board clones it
- Category
- Compressor· Compressors Gates and Limiters
- Price
- see vendor
- Tags
- Compressors Gates and Limiters
Schematic
The schematic is the archived file. Open it at Experimentalists Anonymous, or browse its folder.
Parts list 46 rows
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Check before you build · 1 value the reader of this schematic was not sure of
- Supply diode with 220Ω: symbol unclear, could be an LED or zener
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 15 | ||||
| ×8 | 10k | 10k | read from the schematic by eye | |
| ×9 | 1M | 1M | read from the schematic by eye | |
| ×4 | 56k | 56k | flip-flop collectors and bases; read from the schematic by eye | |
| ×5 | 100k | 100k | read from the schematic by eye | |
| ×2 | 33k | 33k | read from the schematic by eye | |
| ×2 | 1k | 1k | read from the schematic by eye | |
| ×2 | 22k | 22k | Attack and Sustain legs; read from the schematic by eye | |
| ×2 | 4k7 | 4.7k | Sustain divider, tone; read from the schematic by eye | |
| ×2 | 47k | 47k | read from the schematic by eye | |
| ×1 | 3k3 | 3.3k | status LED; read from the schematic by eye | |
| ×1 | 47R | 47 | drawn 47Ω, IC3 pins 2-4; read from the schematic by eye | |
| ×1 | 2k7 | 2.7k | IC3 pin 5; read from the schematic by eye | |
| ×1 | 15k | 15k | read from the schematic by eye | |
| ×1 | 100R | 100 | drawn 100Ω, footswitch; read from the schematic by eye | |
| ×1 | 220R | 220 | drawn 220Ω, supply section; read from the schematic by eye | |
| Capacitors 10 | ||||
| ×2 | 22n | 22n | read from the schematic by eye | |
| ×4 | 1uF | 1u | read from the schematic by eye | |
| ×1 | 47uF | 47u | Vref filter; read from the schematic by eye | |
| ×4 | 47n | 47n | read from the schematic by eye | |
| ×2 | 470p | 470p | read from the schematic by eye | |
| ×2 | 220p | 220p | read from the schematic by eye | |
| ×3 | 10n | 10n | read from the schematic by eye | |
| ×1 | 4.7uF | 4.7u | Q7 gate; read from the schematic by eye | |
| ×1 | 560p | 560p | read from the schematic by eye | |
| ×1 | 100uF | 100u | drawn 100MF, supply; read from the schematic by eye | |
| Diodes 4 | ||||
| ×7 | Diode | DIODE | no part number given; read from the schematic by eye | |
| ×1 | 5.6V | 5V6 | zener, status LED string; read from the schematic by eye | |
| ×1 | 1N4001 | 1N4001 | supply; read from the schematic by eye | |
| ×1 | Diode | DIODE | no part number given; supply section, in series with the 220Ω to ground; read from the schematic by eye | |
| Transistors 8 | ||||
| Q1 | 2SC732-GR | 2SC732-GR | read from the schematic by eye | |
| Q2 | 2SC945(P) | 2SC945(P) | read from the schematic by eye | |
| Q3 | 2SC945(P) | 2SC945(P) | read from the schematic by eye | |
| Q4 | 2SK30A-Y | 2SK30A-Y | JFET; read from the schematic by eye | |
| Q5 | 2SK30A-Y | 2SK30A-Y | JFET; read from the schematic by eye | |
| Q6 | 2SC945(P) | 2SC945(P) | read from the schematic by eye | |
| Q7 | 2SK117-GR | 2SK117-GR | JFET; read from the schematic by eye | |
| Q8 | 2SC945(P) | 2SC945(P) | read from the schematic by eye | |
| ICs 4 | ||||
| IC1 | M5218AL | M5218AL | dual op amp; read from the schematic by eye | |
| IC2 | M5218AL | M5218AL | dual op amp; read from the schematic by eye | |
| IC3 | THAT 2159 | THAT 2159 | VCA; original dbx 2152; read from the schematic by eye | |
| IC4 | BA718 | BA718 | dual op amp; BA728N alternative; read from the schematic by eye | |
| Potentiometers 4 | ||||
| Level | A50K | A50k | Potentiometer | drawn 50k log.; read from the schematic by eye |
| Tone | B20K | B20k | Potentiometer | drawn 20k lin.; read from the schematic by eye |
| Sustain | B20K | B20k | Potentiometer | drawn 20k lin.; read from the schematic by eye |
| Attack | A250K | A250k | Potentiometer | drawn 250k-log.; read from the schematic by eye |
| LEDs 1 | ||||
| ×1 | LED | LED | status; read from the schematic by eye | |
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