Enclosure not stated · 2 knobs
Vox Tonebender Mk. III w. Treble and Bass BoostVerified
Based on the Vox Tone Bender Mk. III· 1 other board clones it
From the post
A rare tonebender variant made by Solasound
for Vox. Info, pictures and schematic HERE
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 Dirtbox Layouts. No KiCad fragment has been drawn for this circuit yet.
Parts list 27 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
- 25uF electrolytic near column G rows H-J: printed clearly, unusual value
- DPDT switch: the legend does not call it a footswitch, but its wiring (Volume 2 to Switch 1, Switch 2 to Output) looks like the bypass switch; listed as printed
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 12 | ||||
| ×1 | 330Ω | 330 | read from the layout by eye | |
| ×1 | 470Ω | 470 | read from the layout by eye | |
| ×1 | 1.8K | 1.8k | read from the layout by eye | |
| ×1 | 2.2K | 2.2k | read from the layout by eye | |
| ×1 | 10K | 10k | read from the layout by eye | |
| ×1 | 22K | 22k | read from the layout by eye | |
| ×1 | 33K | 33k | read from the layout by eye | |
| ×2 | 68K | 68k | read from the layout by eye | |
| ×1 | 100K | 100k | read from the layout by eye | |
| ×2 | 220K | 220k | read from the layout by eye | |
| ×1 | 680K | 680k | read from the layout by eye | |
| ×2 | 1M | 1M | read from the layout by eye | |
| Capacitors 8 | ||||
| ×1 | 2.2nF | 2.2n | read from the layout by eye | |
| ×2 | 10nF | 10n | read from the layout by eye | |
| ×1 | 47nF | 47n | read from the layout by eye | |
| ×1 | 100nF | 100n | read from the layout by eye | |
| ×2 | 220nF | 220n | read from the layout by eye | |
| ×1 | 10uF | 10u | electrolytic; read from the layout by eye | |
| ×1 | 25uF | 25u | electrolytic; read from the layout by eye | |
| ×1 | 47uF | 47u | electrolytic; read from the layout by eye | |
| Diodes 1 | ||||
| D1 | 1N5817 | 1N5817 | read from the layout by eye | |
| Transistors 3 | ||||
| Q1 | 2N2926 | 2N2926 | Try 2N2222, 2N3904, BC337 etc.; read from the layout by eye | |
| Q2 | 2N2926 | 2N2926 | Try 2N2222, 2N3904, BC337 etc.; read from the layout by eye | |
| Q3 | 2N2926 | 2N2926 | Try 2N2222, 2N3904, BC337 etc.; read from the layout by eye | |
| Potentiometers 2 | ||||
| Treble Bass | B100K | B100k | Potentiometer | unconfirmed pot value; read from the layout by eye |
| Volume | B100K | B100k | Potentiometer | unconfirmed pot value; read from the layout by eye |
| Switches 1 | ||||
| Switch | DPDT | DPDT | possibly the bypass switch; read from the layout by eye | |
Other boards based on the Vox Tone Bender Mk. III
- Vox MkIII Treble and Bass Fuzz Dog · 1590B · £31.20