Enclosure not stated · 3 knobs
O-zoan JFET Overdrive
Based on the BJFE Baby Blue OD· 1 other board clones it
- Category
- Overdrive
- Price
- $8.00in stock
From the vendor
JFET OD based on the BFX Baby Blue OD
Can be ordered completely blank if you’d like to provide your own JFETs, or with 3x smd mmbf4393 pre-soldered (one of the best options, IMHO). Other fets may work well too. If you have through hole 2N5952, those are known to sound good in this circuit.
New for V2.0 are 3x bias trimmers that replace R5, 10 & 13 in the V1.0 project. BIAS1, BIAS2, BIAS3 correspond directly to Q1, Q2, Q3. Measure the drain of each JFET & set for 4.5V by adjusting its corresponding BIAS trimmer. There is a small silkscreen dot on the drain side of each JFET transistor.
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 44 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
ocr read from an image · sch paired from the schematic · fixed corrected by hand. Check marked values against the build document.
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 16 | ||||
| R1 | 2sch | 2 | ||
| R2 | 2sch | 2 | ||
| R3 | 2sch | 2 | ||
| R4 | 2sch | 2 | ||
| R6 | 2sch | 2 | ||
| R7 | 1sch | 1 | ||
| R8 | 1sch | 1 | ||
| R9 | 2sch | 2 | ||
| R11 | 1sch | 1 | ||
| R12 | 2sch | 2 | ||
| R14 | 1sch | 1 | ||
| R15 | 1sch | 1 | ||
| R16 | 1sch | 1 | ||
| R5 | 47kocr | 47k | ||
| R10 | 47kocr | 47k | ||
| R13 | 15kocr | 15k | ||
| Capacitors 17 | ||||
| C1 | 100usch | 100u | ||
| C2 | 4n7sch | 4.7n | ||
| C3 | 470nsch | 470n | ||
| C4 | 1nsch | 1n | ||
| C5 | 470pfsch | 470p | ||
| C6 | 470nsch | 470n | ||
| C7 | 470pfsch | 470p | ||
| C8 | 47nsch | 47n | ||
| C9 | 1n5sch | 1.5n | ||
| C10 | 4u7sch | 4.7u | ||
| C11 | 1usch | 1u | ||
| C12 | 4n7sch | 4.7n | ||
| C35 | 470nocr | 470n | ||
| C40 | 4u7ocr | 4.7u | ||
| C14 | 1uocr | 1u | ||
| C172 | 4n7ocr | 4.7n | ||
| C70 | 4u7ocr | 4.7u | ||
| Diodes 5 | ||||
| D1 | 1n400xsch | 1N400X | ||
| D2 | 1n400xsch | 1N400X | ||
| D3 | 1n400xsch | 1N400X | ||
| D4 | 1N400Xfixed | 1N400X | ||
| D5 | 1N400Xfixed | 1N400X | ||
| Transistors 3 | ||||
| Q1 | JFETocr | JFET | ||
| Q2 | JFETocr | JFET | ||
| Q3 | JFETocr | JFET | ||
| Potentiometers 3 | ||||
| Gain | 500KAsch | A500k | Potentiometer | |
| Lev | 50KAsch | A50k | Potentiometer | |
| TREB | 50KAocr | A50k | Potentiometer | |
Other boards based on the BJFE Baby Blue OD
- BJFE Baby Blue OD Tagboard Effects