Enclosure not stated · 3 knobs
Mini BassDrive
Based on the Mini BassDrive
From the post
This is an adaption of the Fulltone Bassdrive without the boost footswitch, allowing for a smaller enclosure. I got the idea from a comment by Simão on the Fulldrive 2 post, and I though it could prove useful for my fellow bassists. Like the Fulldrive/Bassdrive, it's modded Tube Screamer with clipping and voicing options with the 2 toggle switches. Based on this schematic with the boost footswitch and 2nd gain pot removed.
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 36 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
Check before you build · 1 value the reader of this layout was not sure of
- 47uF electrolytic at the lower left of the perfboard (rows M-O, column 2): the wiring diagram prints 100uF at the same position; the perfboard reading 47uF is kept
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 10 | ||||
| ×1 | 47K | 47k | read from the layout by eye | |
| ×1 | 220Ω | 220 | read from the layout by eye | |
| ×6 | 10K | 10k | read from the layout by eye | |
| ×4 | 1K | 1k | read from the layout by eye | |
| ×2 | 510K | 510k | read from the layout by eye | |
| ×1 | 100Ω | 100 | read from the layout by eye | |
| ×1 | 82K | 82k | read from the layout by eye | |
| ×1 | 22K | 22k | read from the layout by eye | |
| ×1 | 4.7K | 4.7k | read from the layout by eye | |
| ×1 | 1M | 1M | read from the layout by eye | |
| Capacitors 12 | ||||
| ×1 | 10nF | 10n | read from the layout by eye | |
| ×1 | 68nF | 68n | read from the layout by eye | |
| ×1 | 220nF | 220n | read from the layout by eye | |
| ×1 | 100nF | 100n | read from the layout by eye | |
| ×1 | 330nF | 330n | read from the layout by eye | |
| ×1 | 22nF | 22n | read from the layout by eye | |
| ×1 | 100pF | 100p | read from the layout by eye | |
| ×1 | 51pF | 51p | read from the layout by eye | |
| ×2 | 1uF | 1u | box film; read from the layout by eye | |
| ×1 | 47uF | 47u | electrolytic; read from the layout by eye | |
| ×1 | 10uF | 10u | electrolytic; read from the layout by eye | |
| ×1 | 100uF | 100u | electrolytic; read from the layout by eye | |
| Diodes 4 | ||||
| ×1 | 1N4001 | 1N4001 | printed 4001; read from the layout by eye | |
| ×1 | 1N4148 | 1N4148 | printed 4148; read from the layout by eye | |
| ×1 | 1N34A | 1N34A | germanium; read from the layout by eye | |
| ×1 | 1N5817 | 1N5817 | printed 5817; read from the layout by eye | |
| Transistors 4 | ||||
| Q1 | 2N5088 | 2N5088 | read from the layout by eye | |
| Q2 | 2N5088 | 2N5088 | read from the layout by eye | |
| Q3 | 2N7000 | 2N7000 | MOSFET; read from the layout by eye | |
| Q4 | 2N7000 | 2N7000 | MOSFET; read from the layout by eye | |
| ICs 1 | ||||
| ×1 | 4558 | 4558 | read from the layout by eye | |
| Potentiometers 3 | ||||
| Gain | A500K | A500k | Potentiometer | read from the layout by eye |
| Tone | B25K | B25k | Potentiometer | read from the layout by eye |
| Volume | A100K | A100k | Potentiometer | read from the layout by eye |
| Switches 2 | ||||
| FCV | DPDT on/on/on | DPDT ON/ON/ON | toggle; FCV 5 to Clip 2; read from the layout by eye | |
| Clip | SPDT on/on | SPDT ON/ON | toggle; read from the layout by eye | |