Enclosure not stated · 4 knobs
Fulltone Fulldrive 2Verified
Based on the Fulltone Fulldrive 2· 2 other boards clone it
From the post
I got a request for the Fulltone Bassdrive, and upon examining the schematic for it and the Fulldrive, there's only a few capacitor value changes between the two, which I'll detail below. All that to say, here's the Fulldrive 2 Mosfet. It's a Tube Screamer circuit with some interesting mods on it. Schematic is easily found on Google. Note that the Boost function of this circuit only works when the overdrive portion is already engaged. Pots can be board mounted and if the switch numbering is confusing consult the General Layout Notes tab for clarification.
For those of you who are interested in the bass version of this, use this layout to populate the Fulltone 2 board for the Bassdrive:
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 35 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
Check before you build · 2 values the reader of this layout was not sure of
- 1uF x2 (left of the IC and right of the clipping diodes): drawn as grey rounded boxes rather than round cans, taken as film/box caps, not electrolytic
- 1N4005 between Q4 and Q3: printed clearly as 4005, an unusual clipping diode
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 10 | ||||
| ×2 | 22K | 22k | read from the layout by eye | |
| ×1 | 47K | 47k | read from the layout by eye | |
| ×2 | 510K | 510k | read from the layout by eye | |
| ×6 | 10K | 10k | read from the layout by eye | |
| ×1 | 100Ω | 100 | read from the layout by eye | |
| ×1 | 4.7K | 4.7k | read from the layout by eye | |
| ×4 | 1K | 1k | read from the layout by eye | |
| ×1 | 1M | 1M | read from the layout by eye | |
| ×1 | 220Ω | 220 | read from the layout by eye | |
| ×1 | 82K | 82k | read from the layout by eye | |
| Capacitors 9 | ||||
| ×1 | 10pF | 10p | read from the layout by eye | |
| ×1 | 51pF | 51p | read from the layout by eye | |
| ×1 | 10nF | 10n | read from the layout by eye | |
| ×1 | 22nF | 22n | read from the layout by eye | |
| ×2 | 100nF | 100n | read from the layout by eye | |
| ×2 | 220nF | 220n | read from the layout by eye | |
| ×2 | 1uF | 1u | box film; read from the layout by eye | |
| ×2 | 10uF | 10u | electrolytic; read from the layout by eye | |
| ×2 | 100uF | 100u | electrolytic; read from the layout by eye | |
| Diodes 4 | ||||
| ×1 | 1N34A | 1N34A | read from the layout by eye | |
| ×1 | 1N4005 | 1N4005 | read from the layout by eye | |
| ×1 | 1N4148 | 1N4148 | read from the layout by eye | |
| ×1 | 1N4001 | 1N4001 | 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 4 | ||||
| Boost | B1M | B1M | Potentiometer | read from the layout by eye |
| Drive | 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 3 | ||||
| Comp | DPDT | DPDT | toggle; read from the layout by eye | |
| Clipping | SPDT | SPDT | toggle; read from the layout by eye | |
| Boost | DPDT | DPDT | footswitch; read from the layout by eye | |
Other boards based on the Fulltone Fulldrive 2
- Deadringer 2022 Madbean · 1590BB · $13.00
- Full Drive Tayda Electronics (DHEA) · $8.00