Enclosure not stated · 1 knob
Joao Galego Decimator G-String work-alike
Based on the ISP Decimator G-String· 1 other board clones it
- Category
- Noise Gate
- Controls
- Threshold
- Price
- see vendor
From the vendor
Joao Galego's work-alike of ISP's Decimator G-String: the same Decimator VCA and detector, but the guitar feeds the detector directly through an input buffer while the VCA sits in a separate send/return loop, so the noise reduction can be placed after overdrives or a preamp and still track the clean guitar signal.
Schematic
The schematic is in the post. Open it at Revolution Deux. No KiCad fragment has been drawn for this circuit yet.
Parts list 80 rows
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Check before you build · 1 value the reader of this schematic was not sure of
- U1, U7 and U9 have no op-amp type on the drawing.
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 40 | ||||
| R1 | 1K | 1k | read from the schematic by eye | |
| R2 | 1M | 1M | read from the schematic by eye | |
| R3 | 20K | 20k | read from the schematic by eye | |
| R4 | 5.1K | 5.1k | read from the schematic by eye | |
| R5 | 22M | 22M | read from the schematic by eye | |
| R6 | 10K | 10k | read from the schematic by eye | |
| R7 | 10K | 10k | read from the schematic by eye | |
| R8 | 1M | 1M | read from the schematic by eye | |
| R9 | 27K | 27k | read from the schematic by eye | |
| R10 | 100K | 100k | read from the schematic by eye | |
| R11 | 5.1K | 5.1k | read from the schematic by eye | |
| R12 | 10M | 10M | read from the schematic by eye | |
| R13 | 20K | 20k | read from the schematic by eye | |
| R14 | 20K | 20k | read from the schematic by eye | |
| R15 | 20K | 20k | read from the schematic by eye | |
| R16 | 20K | 20k | read from the schematic by eye | |
| R17 | 100K | 100k | read from the schematic by eye | |
| R18 | 2.2K | 2.2k | LED resistor; read from the schematic by eye | |
| R19 | 10K | 10k | read from the schematic by eye | |
| R20 | 200K | 200k | read from the schematic by eye | |
| R21 | 68K | 68k | read from the schematic by eye | |
| R22 | 47K | 47k | read from the schematic by eye | |
| R23 | 1M | 1M | read from the schematic by eye | |
| R24 | 20K | 20k | read from the schematic by eye | |
| R25 | 100 | 100 | read from the schematic by eye | |
| R26 | 100K | 100k | read from the schematic by eye | |
| R27 | 10K | 10k | read from the schematic by eye | |
| R28 | 20K | 20k | read from the schematic by eye | |
| R29 | 20K | 20k | read from the schematic by eye | |
| R30 | 10K | 10k | read from the schematic by eye | |
| R31 | 750 | 750 | read from the schematic by eye | |
| R32 | 100K | 100k | read from the schematic by eye | |
| R33 | 1M | 1M | read from the schematic by eye | |
| R34 | 1M | 1M | read from the schematic by eye | |
| R35 | 270K | 270k | read from the schematic by eye | |
| R36 | 1K | 1k | read from the schematic by eye | |
| R37 | 620 | 620 | read from the schematic by eye | |
| R38 | 100K | 100k | read from the schematic by eye | |
| R39 | 100K | 100k | read from the schematic by eye | |
| R40 | 1K | 1k | read from the schematic by eye | |
| Capacitors 18 | ||||
| C1 | 470n | 470n | read from the schematic by eye | |
| C2 | 100p | 100p | read from the schematic by eye | |
| C3 | 10u | 10u | electrolytic; read from the schematic by eye | |
| C4 | 330n | 330n | read from the schematic by eye | |
| C5 | 100n | 100n | read from the schematic by eye | |
| C6 | 330n | 330n | read from the schematic by eye | |
| C7 | 1u | 1u | electrolytic; read from the schematic by eye | |
| C8 | 22p | 22p | read from the schematic by eye | |
| C9 | 10u | 10u | electrolytic; read from the schematic by eye | |
| C10 | 22u | 22u | electrolytic; read from the schematic by eye | |
| C11 | 100u | 100u | electrolytic, power filter; read from the schematic by eye | |
| C12 | 100n | 100n | power filter; read from the schematic by eye | |
| C13 | 100n | 100n | power filter; read from the schematic by eye | |
| C14 | 100n | 100n | power filter; read from the schematic by eye | |
| C15 | 22u | 22u | electrolytic; read from the schematic by eye | |
| C16 | 10u | 10u | electrolytic; read from the schematic by eye | |
| C17 | 470n | 470n | read from the schematic by eye | |
| C18 | 10u | 10u | electrolytic, power filter; read from the schematic by eye | |
| Diodes 12 | ||||
| D1 | 1N914 | 1N914 | read from the schematic by eye | |
| D2 | 1N914 | 1N914 | read from the schematic by eye | |
| D3 | 1N914 | 1N914 | read from the schematic by eye | |
| D4 | 1N914 | 1N914 | read from the schematic by eye | |
| D5 | 1N914 | 1N914 | read from the schematic by eye | |
| D6 | 1N914 | 1N914 | read from the schematic by eye | |
| D9 | 1N914 | 1N914 | read from the schematic by eye | |
| D10 | 1N914 | 1N914 | read from the schematic by eye | |
| D11 | 1N914 | 1N914 | read from the schematic by eye | |
| D12 | 1N4001 | 1N4001 | read from the schematic by eye | |
| D14 | 1N914 | 1N914 | read from the schematic by eye | |
| D15 | 1N914 | 1N914 | read from the schematic by eye | |
| Transistors 2 | ||||
| Q1 | 2N5551 | 2N5551 | read from the schematic by eye | |
| Q4 | MPS2222A | MPS2222A | read from the schematic by eye | |
| ICs 5 | ||||
| U1 | ? | ? | dual op-amp, type not given (U1.2 unused); read from the schematic by eye | |
| U5 | LF353N | LF353N | read from the schematic by eye | |
| U7 | ? | ? | quad op-amp, type not given; read from the schematic by eye | |
| U8 | THAT2181C | THAT2181C | VCA; read from the schematic by eye | |
| U9 | ? | ? | quad op-amp, type not given; read from the schematic by eye | |
| Potentiometers 2 | ||||
| R180 | 1M | 1M | Potentiometer | trimmer (VCA symmetry); read from the schematic by eye |
| Threshold | B10K | B10k | Potentiometer | drawn as POT; read from the schematic by eye |
| LEDs 1 | ||||
| D8 | LED | LED | read from the schematic by eye | |
Other boards based on the ISP Decimator G-String
- Decimator G-String Guitar-Electronics.eu · €8.75