125B · 6 knobs
PedalPCB· PCB593
Scenario Preamp
Based on the Cornerstone Gladio SC· 1 other board clones it
- Category
- Fuzz· OD / Distortion / Fuzz
- Price
- $12.00in stock
- Tags
- 125B
From the vendor
Controls
• Volume
• Gain
• Tone
• Clean
• Compression (Toggle switch)
• Bass (Internal trim pot)
Details
• Designed for a 125B enclosure with top-mounted jacks
The company, product and service names used in this web site are for comparative purposes only. All trademarks and registered trademarks are the property of their respective owners. This product is not manufactured or distributed by Cornerstone Musical Gear, maker of the Cornerstone Musical Gear Gladio SC Preamp.
PedalPCB is in no way affiliated with Cornerstone Musical Gear.
Schematic
The schematic is in the vendor's build document, page 3. Open the build document. No KiCad fragment has been drawn for this circuit yet.
Parts list 49 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 17 | ||||
| R1 | 1M | 1M | Resistor, 1/4W | |
| R2 | 1M | 1M | Resistor, 1/4W | |
| R3 | 3K3 | 3.3k | Resistor, 1/4W | |
| R4 | 1M | 1M | Resistor, 1/4W | |
| R5 | 3K3 | 3.3k | Resistor, 1/4W | |
| R6 | 10K | 10k | Resistor, 1/4W | |
| R7 | 10K | 10k | Resistor, 1/4W | |
| R8 | 1K5 | 1.5k | Resistor, 1/4W | |
| R9 | 2K2 | 2.2k | Resistor, 1/4W | |
| R10 | 3K3 | 3.3k | Resistor, 1/4W | |
| R11 | 3K3 | 3.3k | Resistor, 1/4W | |
| R12 | 10K | 10k | Resistor, 1/4W | |
| R13 | 10K | 10k | Resistor, 1/4W | |
| R100 | 82R | 82 | Resistor, 1/4W | |
| R101 | 10K | 10k | Resistor, 1/4W | |
| R102 | 10K | 10k | Resistor, 1/4W | |
| CLR | 4K7 | 4.7k | Resistor, 1/4W | * LED current limiting resistor |
| Capacitors 15 | ||||
| C1 | 47n | 47n | Film capacitor, 7.2 x 2.5mm | |
| C2 | 1u | 1u | Film capacitor, 7.2 x 5.0mm | |
| C3 | 33n | 33n | Film capacitor, 7.2 x 2.5mm | |
| C4 | 47n | 47n | Film capacitor, 7.2 x 2.5mm | |
| C5 | 27p | 27p | Ceramic capacitor | |
| C6 | 1u | 1u | Film capacitor, 7.2 x 5.0mm | |
| C7 | 100p | 100p | Ceramic capacitor | |
| C8 | 68n | 68n | Film capacitor, 7.2 x 2.5mm | |
| C9 | 100p | 100p | Ceramic capacitor | |
| C10 | 1u | 1u | Film capacitor, 7.2 x 5.0mm | |
| C11 | 1u | 1u | Film capacitor, 7.2 x 5.0mm | |
| C12 | 1u | 1u | Film capacitor, 7.2 x 5.0mm | |
| C100 | 100n | 100n | Film capacitor, 7.2 x 2.5mm | |
| C101 | 100u | 100u | Electrolytic capacitor, 5mm | |
| C102 | 47u | 47u | Electrolytic capacitor, 5mm | |
| Diodes 7 | ||||
| D1 | 1N4148 | 1N4148 | Signal diode, DO-35 | |
| D2 | 1N4148 | 1N4148 | Signal diode, DO-35 | |
| D3 | 1N4148 | 1N4148 | Signal diode, DO-35 | |
| D4 | 1N4148 | 1N4148 | Signal diode, DO-35 | |
| D5 | 1N4148 | 1N4148 | Signal diode, DO-35 | |
| D6 | 1N4148 | 1N4148 | Signal diode, DO-35 | |
| D100 | 1N5817 | 1N5817 | Schottky diode, DO-41 | |
| ICs 4 | ||||
| IC1 | TL072 | TL072 | Dual op-amp, DIP8 | |
| IC2 | JRC4558 | JRC4558 | Dual op-amp, DIP8 | |
| IC3 | TL072 | TL072 | Dual op-amp, DIP8 | |
| IC4 | TL072 | TL072 | Dual op-amp, DIP8 | |
| Potentiometers 4 | ||||
| VOLUME | B10K | B10k | 16mm right-angle PCB mount pot | |
| GAIN | B500K | B500k | 16mm right-angle PCB mount pot | |
| TONE | B5K | B5k | 16mm right-angle PCB mount pot | |
| CLEAN | B25K | B25k | 16mm right-angle PCB mount pot | |
| Trimmers 1 | ||||
| BASS_TRIM | 50K | 50k | Trimmer potentiometer, 3362P type | |
| Switches 1 | ||||
| COMP | ON/ON | ON/ON | Toggle switch, SPDT | 2-position (ON/ON) |
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