Enclosure not stated · 3 knobs
JMK PCBs· 010
Happy Birthday Overdrive
Based on the BJFe Honey Bee· 6 other boards clone it
- Category
- Overdrive
- Difficulty
- Easy
- Price
- $12.00in stock
From the vendor
The Happy Birthday Overdrive uses a Single Op-Amp for the distortion section and a JFet transistor for a makeup gain after a very unique tone section, which also affects the drive at the output. It’s a great light to medium overdrive with slightly fuzz like overtones.
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 37 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 16 | ||||
| R1 | 1M | 1M | ||
| R10 | 1K | 1k | ||
| R2 | 15K | 15k | ||
| R11 | 2.2K | 2.2k | ||
| R3 | 360K | 360k | ||
| R12 | 47K | 47k | ||
| R4 | 31.6K | 31.6k | ||
| R13 | 10K | 10k | ||
| R5 | 51R | 51 | ||
| R14 | 1K | 1k | ||
| R6 | 31.6K | 31.6k | ||
| R15 | 3K | 3k | ||
| R7 | 5.6K | 5.6k | ||
| R16 | 27K | 27k | ||
| R8 | 47K | 47k | ||
| R9 | 1M | 1M | ||
| Capacitors 11 | ||||
| C1 | 47nF | 47n | ||
| C9 | 4.7nF | 4.7n | ||
| C10 | 100pF | 100p | ||
| C4 | 1uF | 1u | ||
| C11 | 22nF | 22n | ||
| C5 | 4.7nF | 4.7n | ||
| C12 | 4.7nF | 4.7n | ||
| C6 | 4.7nF | 4.7n | ||
| C13 | 1uF | 1u | ||
| C7 | 220nF | 220n | ||
| C14 | 22nF | 22n | ||
| Diodes 3 | ||||
| D3 | 1N4001 | 1N4001 | ||
| D4 | 1N4001 | 1N4001 | ||
| D5 | 1N4001 | 1N4001 | ||
| Transistors 1 | ||||
| Q1 | 2N5457 | 2N5457 | ||
| ICs 1 | ||||
| IC1 | CA3130 | CA3130 | ||
| Potentiometers 3 | ||||
| GAIN | A500K | A500k | Potentiometer | |
| TONE | A50K | A50k | Potentiometer | |
| LEVEL | B50K | B50k | Potentiometer | |
| LEDs 2 | ||||
| D1 | LED | LED | ||
| D2 | LED | LED | ||
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