125B
GUMA-Antique
Based on the Mad Professor Sweet Honey Overdrive· 9 other boards clone it
- Category
- Overdrive
- Price
- see vendorout of stock
- Tags
- kits discontinued
From the vendor
The GUMA-Antique is the first available Clone of a well-known Overdrive-Pedal from Finland The kit is designed to be an easy build. In total there are only four wires to connect. Everything else is on the pcb. The most challenging part is the soldering of two surface-mounted J-FETs. Those J-FETs as conventional “through-hole” aren’t available anymore. That’s the reason I had to use the SMD-equivalent. They are very small and also ESD sensitive. Therefore this project is only suitable for advanced DIY-Folks. The GUMA-Antique features a relay based true bypass.
Schematic
The schematic is in the post. Open it at Schalltechnik_04. No KiCad fragment has been drawn for this circuit yet.
Parts list 36 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 12 | ||||
| ×1 | 150R | 150 | Resistor | shopping list |
| ×1 | 1.0k | 1k | Resistor | shopping list |
| ×2 | 3.3k | 3.3k | Resistor | shopping list |
| ×2 | 6.65k | 6.65k | Resistor | shopping list |
| ×7 | 10k | 10k | Resistor | shopping list |
| ×3 | 22k | 22k | Resistor | shopping list |
| ×4 | 100k | 100k | Resistor | shopping list |
| ×1 | 220k | 220k | Resistor | shopping list |
| ×1 | 261k | 261k | Resistor | shopping list |
| ×1 | 330k | 330k | Resistor | shopping list |
| ×2 | 470k | 470k | Resistor | shopping list |
| ×7 | 1M | 1M | Resistor | shopping list |
| Capacitors 9 | ||||
| ×3 | 220p | 220p | Ceramic capacitor | shopping list |
| ×4 | 1n | 1n | Film capacitor | shopping list |
| ×1 | 2n2 | 2.2n | Film capacitor | shopping list |
| ×1 | 4n7 | 4.7n | Film capacitor | shopping list |
| ×5 | 22n | 22n | Film capacitor | shopping list |
| ×4 | 100n | 100n | Film capacitor | shopping list |
| ×3 | 220n | 220n | Film capacitor | shopping list |
| ×3 | 1u | 1u | Film capacitor | shopping list |
| ×2 | 100u | 100u | Electrolytic capacitor | shopping list |
| Diodes 2 | ||||
| ×1 | 1N4003 | 1N4003 | shopping list | |
| ×3 | 1N4148 | 1N4148 | shopping list | |
| Transistors 2 | ||||
| ×1 | BC547B | BC547B | shopping list | |
| ×2 | MMBFJ201 | MMBFJ201 | shopping list | |
| ICs 4 | ||||
| ×1 | 78L05 | 78L05 | shopping list | |
| ×1 | TL072 | TL072 | shopping list | |
| ×1 | TL074 | TL074 | shopping list | |
| ×1 | CD4049UB | CD4049UB | shopping list | |
| Potentiometers 3 | ||||
| ×1 | 100kA | A100k | Potentiometer | shopping list |
| ×2 | 100kB | B100k | Potentiometer | shopping list |
| ×1 | 100kC | C100k | Potentiometer | shopping list |
| Switches 1 | ||||
| ×1 | SPDT | SPDT | Switch | shopping list |
| LEDs 1 | ||||
| ×1 | LED | LED | LED 3mm | shopping list |
| Other 2 | ||||
| ×1 | FRT5 | FRT5 | shopping list | |
| ×2 | 7 | 7 | shopping list | |
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