125B · 4 knobs
Jext Telez White PedalVerified
Based on the Jext Telez White Pedal· 4 other boards clone it
From the post
Here's a pretty cool one for Fuzz Friday–the Jext Telez White Pedal. It's a recreation of an onboard overdrive unit in a vintage Vox amp used by George Harrison in the late 60s. Schematic can be found here. Pots are board mounted and I've tweaked the Yoko switch to just be a toggle instead of a rotary like the originals, and it should fit nicely in a 125B.
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 39 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 16 | ||||
| ×3 | 220Ω | 220 | read from the layout by eye | |
| ×3 | 10K | 10k | read from the layout by eye | |
| ×2 | 18K | 18k | read from the layout by eye | |
| ×1 | 330Ω | 330 | read from the layout by eye | |
| ×1 | 470Ω | 470 | read from the layout by eye | |
| ×1 | 1K | 1k | read from the layout by eye | |
| ×1 | 1.5K | 1.5k | read from the layout by eye | |
| ×1 | 2.2K | 2.2k | read from the layout by eye | |
| ×1 | 4.7K | 4.7k | read from the layout by eye | |
| ×1 | 15K | 15k | read from the layout by eye | |
| ×1 | 20K | 20k | read from the layout by eye | |
| ×1 | 22K | 22k | read from the layout by eye | |
| ×1 | 47K | 47k | read from the layout by eye | |
| ×1 | 100K | 100k | read from the layout by eye | |
| ×1 | 220K | 220k | read from the layout by eye | |
| ×1 | 1M | 1M | read from the layout by eye | |
| Capacitors 9 | ||||
| ×1 | 10nF | 10n | read from the layout by eye | |
| ×1 | 47nF | 47n | read from the layout by eye | |
| ×1 | 68nF | 68n | read from the layout by eye | |
| ×3 | 100nF | 100n | read from the layout by eye | |
| ×2 | 220nF | 220n | read from the layout by eye | |
| ×4 | 10uF | 10u | electrolytic; read from the layout by eye | |
| ×3 | 47uF | 47u | electrolytic; read from the layout by eye | |
| ×1 | 220uF | 220u | electrolytic; read from the layout by eye | |
| ×1 | 470uF | 470u | electrolytic; read from the layout by eye | |
| Diodes 1 | ||||
| ×1 | 1N4001 | 1N4001 | read from the layout by eye | |
| Transistors 7 | ||||
| Q1 | BC548 | BC548 | read from the layout by eye | |
| Q2 | BC548 | BC548 | read from the layout by eye | |
| Q3 | BC548 | BC548 | read from the layout by eye | |
| Q4 | BC548 | BC548 | read from the layout by eye | |
| QD1 | 2N4125 | 2N4125 | PNP, used as a diode; read from the layout by eye | |
| QD2 | 2N4125 | 2N4125 | PNP, used as a diode; read from the layout by eye | |
| QD3 | 2N4125 | 2N4125 | PNP, used as a diode; read from the layout by eye | |
| Inductors 1 | ||||
| ×1 | 500mH | 500mH | inductor; read from the layout by eye | |
| Potentiometers 4 | ||||
| Gain | C5K | C5k | Potentiometer | read from the layout by eye |
| Level | A25K | A25k | Potentiometer | labelled Volume on the board; read from the layout by eye |
| Treble | B1K | B1k | Potentiometer | read from the layout by eye |
| Bass | A10K | A10k | Potentiometer | read from the layout by eye |
| Switches 1 | ||||
| Yoko | DPDT on/on/on | DPDT ON/ON/ON | toggle; read from the layout by eye | |
Other boards based on the Jext Telez White Pedal
- Jext Telez White Pedal Dirtbox Layouts
- Whiteboard PCB Guitar Mania · 125B · €11.90
- Conqueror Fuzz PedalPCB · 125B · $12.00
- Jext Telez White Pedal Tagboard Effects