Enclosure not stated · 3 knobs
Wampler Faux Spring ReverbVerified
Based on the Wampler Faux Spring Reverb
From the post
The Faux Spring Reverb, like many pedal reverbs is based around a Belton reverb module. Originally it used the BTDR-1 (which is massive), but in this layout I've adapted it for the newer and smaller BTDR-2H. I've also simplified the power section a little, and used a TL071 for the second IC. In the original a TL072 was used, but only used half of it. Here's what Brian has to say about his design:
The great thing about the Faux Spring Reverb is that it retains the Analog base tone, doesn’t send your signal through digital/analog converters and back again (wrecking your tone completely) allowing you to be as springy as you like without your sound becoming lifeless, dull and… well, bad. With the tone control, you can control your sound completely and have your reverb be as bright as day, or dark as night… As lively and bright as a small hall, or as deep as the biggest cathedrals.
Edit: I realized this afternoon that the Depth pot would hit the Belton brick, so I've changed it to a 9mm pot and it will clear the brick. The whole thing will be really snug, but it should be doable.
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 24 rows
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Check before you build · 1 value the reader of this layout was not sure of
- BTDR2 reverb module: named only by the wire label '1 - BTDR2 - 6', no variant (decay length) given
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 9 | ||||
| ×6 | 10K | 10k | read from the layout by eye | |
| ×3 | 1M | 1M | read from the layout by eye | |
| ×1 | 470K | 470k | read from the layout by eye | |
| ×1 | 100K | 100k | read from the layout by eye | |
| ×1 | 22K | 22k | read from the layout by eye | |
| ×1 | 6.8K | 6.8k | read from the layout by eye | |
| ×1 | 3.3K | 3.3k | read from the layout by eye | |
| ×1 | 470Ω | 470 | read from the layout by eye | |
| ×1 | 10Ω | 10 | read from the layout by eye | |
| Capacitors 6 | ||||
| ×1 | 47pF | 47p | read from the layout by eye | |
| ×2 | 22nF | 22n | read from the layout by eye | |
| ×1 | 100nF | 100n | read from the layout by eye | |
| ×3 | 1uF | 1u | box film; read from the layout by eye | |
| ×1 | 100uF | 100u | electrolytic; read from the layout by eye | |
| ×2 | 220uF | 220u | electrolytic; read from the layout by eye | |
| Diodes 1 | ||||
| ×1 | 1N4001 | 1N4001 | printed 4001; read from the layout by eye | |
| Transistors 1 | ||||
| ×1 | J201 | J201 | JFET; read from the layout by eye | |
| ICs 3 | ||||
| ×1 | TL071 | TL071 | read from the layout by eye | |
| ×1 | TL072 | TL072 | read from the layout by eye | |
| ×1 | 7805 | 7805 | regulator, drawn in a TO-92 outline; read from the layout by eye | |
| Potentiometers 3 | ||||
| Shade | B50K | B50k | Potentiometer | read from the layout by eye |
| Depth | B25K | B25k | Potentiometer | read from the layout by eye |
| Level | C100K | C100k | Potentiometer | read from the layout by eye |
| Other 1 | ||||
| ×1 | BTDR-2 | BTDR-2 | Belton reverb module, off board, printed BTDR2; read from the layout by eye | |