1590A · 1 knob
Vox Repeat Percussion TremoloVerified
Based on the Vox Repeat Percussion· 6 other boards clone it
From the post
This cool little effect was originally housed in a small box that plugged directly into your amp (which you then plugged your guitar into) and later on some of Vox's higher end guitars. You'll need to track down an obsolete 2N2646 unijunction transistor for Q1, but they can be found on eBay or Small Bear. It produces a thumpy sounding tremolo that could be really useful if you're trying to cover The Who's "Baba O'Riley" and need to do the intro on guitar.
Here's the stock version:
And with an added depth control:
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 22 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 12 | ||||
| ×1 | 22K | 22k | read from the layout by eye | |
| ×2 | 1M | 1M | read from the layout by eye | |
| ×1 | 33K | 33k | 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 | |
| ×2 | 330K | 330k | read from the layout by eye | |
| ×1 | 3.3K | 3.3k | read from the layout by eye | |
| ×1 | 33Ω | 33 | 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 | 4.7K | 4.7k | read from the layout by eye | |
| ×1 | 82K | 82k | read from the layout by eye | |
| Capacitors 5 | ||||
| ×1 | 4.7nF | 4.7n | read from the layout by eye | |
| ×1 | 47nF | 47n | read from the layout by eye | |
| ×1 | 68nF | 68n | 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 1 | ||||
| ×1 | 1N4001 | 1N4001 | read from the layout by eye | |
| Transistors 3 | ||||
| Q1 | 2N2646 | 2N2646 | unijunction; read from the layout by eye | |
| Q2 | BC108 | BC108 | read from the layout by eye | |
| Q3 | BC109 | BC109 | read from the layout by eye | |
| Potentiometers 1 | ||||
| Rate | B50K | B50k | Potentiometer | read from the layout by eye |
Other boards based on the Vox Repeat Percussion
- Vox V809 Repeat Percussion w. mods Dirtbox Layouts
- FuzzPup Repeater Fuzz Dog · 1590A · £36.00
- Little Pecker Trem Fuzz Dog · 1590B · £34.80
- Repeater - Vox Repeat Percussion Fuzz Dog · 1590B · £39.60
- Vox Repeat Percussion Tagboard Effects
- VOX Repeat Percussion turretboard.org