1590A · 1 knob
JHS MiniBombVerified
Based on the JHS MiniBomb· 2 other boards clone it
From the post
Here's a simple clean boost circuit built by JHS. It's really just the Tim Escobedo Duente JFET boost with a fixed resistor instead of a trimmer. Because of that you probably want to socket that resistor (5.1k) and adjust to the J201 you use. Or you can just squeeze a 25k trimmer on there like Tim designed it. Should fit in a 1590a just fine.
Schematic
This is a board layout, a drawing of where each part goes, and the post may link the schematic it was drawn from. Open the layout at Effects Layouts (blog). No KiCad fragment has been drawn for this circuit yet.
Parts list 7 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 2 | ||||
| ×1 | 100K | 100k | read from the layout by eye | |
| ×1 | 5.1K | 5.1k | read from the layout by eye | |
| Capacitors 2 | ||||
| ×1 | 100nF | 100n | read from the layout by eye | |
| ×1 | 22uF | 22u | electrolytic; read from the layout by eye | |
| Diodes 1 | ||||
| ×1 | 1N4001 | 1N4001 | printed 4001; read from the layout by eye | |
| Transistors 1 | ||||
| Q1 | J201 | J201 | JFET; read from the layout by eye | |
| Potentiometers 1 | ||||
| Boost | B1M | B1M | Potentiometer | printed 1M Lin, board mounted; read from the layout by eye |