Enclosure not stated · 4 knobs
Prescription Electronics YardboxVerified
Based on the Prescription Electronics Yardbox· 2 other boards clone it
From the post
Info about the original:
The Yardbox. A faithful sonic copy of the original Sola Sound Tonebender, purportedly the only distortion pedal used on Led Zeppelin's first two albums. The pedal has no similarity to Jumbo, Supa, or the Vox Tonebender. Wide variation in tone and smooth dynamics at all volumes.
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 Tagboard Effects. No KiCad fragment has been drawn for this circuit yet.
Parts list 20 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
- 22u electrolytic at top centre: small print, could be 2.2u
- 220p ceramic at far left edge is faint and partly cut off by the 100n next to it
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 6 | ||||
| ×5 | 10K | 10k | read from the layout by eye | |
| ×1 | 220K | 220k | read from the layout by eye | |
| ×1 | 1M5 | 1.5M | read from the layout by eye | |
| ×1 | 47K | 47k | read from the layout by eye | |
| ×1 | 3K3 | 3.3k | read from the layout by eye | |
| ×1 | 18K | 18k | read from the layout by eye | |
| Capacitors 6 | ||||
| ×2 | 100n | 100n | read from the layout by eye | |
| ×1 | 220n | 220n | read from the layout by eye | |
| ×1 | 2n2 | 2.2n | read from the layout by eye | |
| ×1 | 220p | 220p | read from the layout by eye | |
| ×1 | 22u | 22u | electrolytic; read from the layout by eye | |
| ×1 | 4u7 | 4.7u | electrolytic; read from the layout by eye | |
| Diodes 1 | ||||
| D1 | 1N270 | 1N270 | read from the layout by eye | |
| Transistors 3 | ||||
| Q1 | PNP germanium | PNP GERMANIUM | type not given; read from the layout by eye | |
| Q2 | PNP germanium | PNP GERMANIUM | type not given; read from the layout by eye | |
| Q3 | PNP germanium | PNP GERMANIUM | type not given; read from the layout by eye | |
| Potentiometers 4 | ||||
| Fuzz | B100K | B100k | Potentiometer | read from the layout by eye |
| Gain | B100K | B100k | Potentiometer | read from the layout by eye |
| Tone | B100K | B100k | Potentiometer | read from the layout by eye |
| Volume | B100K | B100k | Potentiometer | read from the layout by eye |
Other boards based on the Prescription Electronics Yardbox
- Prescription Electronics Yardbox Dirtbox Layouts
- Prescription Electronics Yard Box turretboard.org