125B · 4 knobs
Red-winged Overdrive
Based on the Electro-Harmonix Hot Tubes· 8 other boards clone it
- Category
- Overdrive
- Price
- see vendor
From the vendor
The Red-winged Overdrive is a PCB based on the ElectroHarmonix Hot Tubes, an early CMOS-based overdrive. All components should be easy to source, though note there's a few capacitor and resistor values which are less common. The Red-winged Overdrive is a versatile, warm, tube-sounding overdrive.
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 49 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 23 | ||||
| R1 | 120K | 120k | ||
| R2 | 20K | 20k | ||
| R3 | 20K | 20k | ||
| R4 | 75K | 75k | ||
| R5 | 8K2 | 8.2k | ||
| R6 | 1M8 | 1.8M | ||
| R7 | 150K | 150k | ||
| R8 | 2M2 | 2.2M | ||
| R9 | 200K | 200k | ||
| R10 | 5K6 | 5.6k | ||
| R11 | 1K2 | 1.2k | ||
| R12 | 150K | 150k | ||
| R13 | 1M | 1M | ||
| R14 | 47K | 47k | ||
| R15 | 430K | 430k | ||
| R16 | 1M | 1M | ||
| R17 | 47K | 47k | ||
| R18 | 150R | 150 | ||
| R100 | 4K7 | 4.7k | LEDR | |
| R101 | 100R | 100 | ||
| R102 | 220K | 220k | ||
| R103 | 220K | 220k | ||
| RPD1 | 1M | 1M | ||
| Capacitors 18 | ||||
| C1 | 100N | 100n | ||
| C2 | 180P | 180p | ||
| C3 | 4U7 | 4.7u | ||
| C4 | 47P | 47p | ||
| C5 | 100N | 100n | ||
| C6 | 27P | 27p | ||
| C7 | 150N | 150n | ||
| C8 | 10U | 10u | ||
| C9 | 120N | 120n | ||
| C10 | 120N | 120n | ||
| C11 | 220N | 220n | ||
| C12 | 4U7 | 4.7u | ||
| C13 | 220N | 220n | ||
| C14 | 4U7 | 4.7u | ||
| C100 | 100N | 100n | ||
| C101 | 220U | 220u | ||
| C102 | 47U | 47u | ||
| C103 | 47U | 47u | ||
| Diodes 1 | ||||
| D101 | 1N5817 | 1N5817 | Polarity Protection | |
| ICs 2 | ||||
| U2 | CD4049 | CD4049 | ||
| U3 | RC4558 | RC4558 | ||
| Potentiometers 3 | ||||
| Tone | B10K | B10k | ||
| Drive | C1M | C1M | ||
| Vol | A10K | A10k | ||
| Switches 1 | ||||
| Tone Bypass | SPDT | SPDT | ||
| LEDs 1 | ||||
| D100 | LED | LED | Bypass Indicator | |
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