1590B · 4 knobs
Blowball Overdrive
Based on the Marshall JCM800· 1 other board clones it
Want a PCB? HotKits sells this PCB from a price list, ordered by message (or by email to alex.hotkits@gmail.com): message HotKits on Facebook.
- Category
- Overdrive
- Controls
- Gain · Sensitivity · Tone · Volume
- Price
- $8.00in stock
- Tags
- assembled PCB available
From the vendor
The JCM800 Pedal replicates the unmistakable tone of Marshall’s masterwork: the JCM800. With this stompbox on your pedalboard, you’ll be able to conjure up the sounds of pretty much every high-gain axe slinger from the 1980s, along with countless present-day JCM800 aficionados. True bypass. Power supply: regulated mains adapter 9 VDC. The dimensions of the main PCB 50 x 49 mm. The dimensions of the True bypass PCB 50 x 42 mm. Enclosure type: Hammond 1590B. Also sold as an assembled PCB: $57.00.
Schematic
The schematic is in the vendor's build document. Open the build document. No KiCad fragment has been drawn for this circuit yet.
Parts list 33 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 13 | ||||
| ×1 | 22 | 22 | Metal film resistor 1/4W 22 Ohm | |
| ×1 | 47 | 47 | Metal film resistor 1/4W 47 Ohm | |
| ×1 | 100 | 100 | Metal film resistor 1/4W 100 Ohm | |
| ×3 | 1k | 1k | Metal film resistor 1/4W 1k | |
| ×1 | 4k7 | 4.7k | Metal film resistor 1/4W 4k7 | |
| ×6 | 10k | 10k | Metal film resistor 1/4W 10k | |
| ×3 | 22k | 22k | Metal film resistor 1/4W 22k | |
| ×2 | 47k | 47k | Metal film resistor 1/4W 47k | |
| ×1 | 100k | 100k | Metal film resistor 1/4W 100k | |
| ×3 | 470k | 470k | Metal film resistor 1/4W 470k | |
| ×1 | 1M | 1M | Metal film resistor 1/4W 1M | |
| ×2 | 2M2 | 2.2M | Metal film resistor 1/4W 2M2 | |
| ×1 | 4M7 | 4.7M | Metal film resistor 1/4W 4M7 | |
| Capacitors 8 | ||||
| ×1 | 100p | 100p | Ceramic disc capacitor 100p 50V | Ceramic disc capacitor |
| ×1 | 150p | 150p | Ceramic disc capacitor 150p 50V | Ceramic disc capacitor |
| ×1 | 100n | 100n | Monolithic ceramic capacitor X7R 100n 50V | Monolithic ceramic capacitor |
| ×1 | 1n | 1n | Film capacitor (R=5mm) 1n 63V | Film capacitor |
| ×1 | 22n | 22n | Film capacitor (R=5mm) 22n 63V | Film capacitor |
| ×2 | 68n | 68n | Film capacitor (R=5mm) 68n 63V | Film capacitor |
| ×3 | 220n | 220n | Film capacitor (R=5mm) 220n 63V | Film capacitor |
| ×2 | 470n | 470n | Film capacitor (R=5mm) 470n 63V | Film capacitor |
| Diodes 2 | ||||
| ×1 | 1N5817 | 1N5817 | Diode 1N5817 | |
| ×4 | 1N4148 | 1N4148 | Diode 1N4148 | |
| Transistors 1 | ||||
| ×2 | 2SK209G | 2SK209G | Transistor 2SK209G | |
| ICs 1 | ||||
| ×1 | 33178 | 33178 | IC 33178 SO8 | |
| Potentiometers 4 | ||||
| ×1 | B10k | B10k | Potentiometer Alpha RV16AF-20-15k-B10k | |
| ×1 | A25k | A25k | Potentiometer Alpha RV16AF-20-15k-A25k | |
| ×1 | A100k | A100k | Potentiometer Alpha RV16AF-20-15k-A100k | |
| ×1 | A1M | A1M | Potentiometer Alpha RV16AF-20-15k-A1M | |
| Trimmers 1 | ||||
| ×1 | 50k | 50k | Trimmer potentiometer 3362P 50k | |
| LEDs 2 | ||||
| ×1 | LED | LED | LED 5mm | 5mm; leads length=25mm |
| ×1 | LED | LED | LED 5mm | 5mm |
| Other 1 | ||||
| ×4 | Connector PLS-5R | CONNECTOR PLS-5R | Connector PLS-5R | DS1022-1x5R |
Other boards based on the Marshall JCM800
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