Akashic Guitar effects circuit lookup
SHADEDEPTHLEVEL

Enclosure not stated · 3 knobs

Effects Layouts (blog)

Wampler Faux Spring ReverbVerified

Based on the Wampler Faux Spring Reverb

Category
Reverb
Controls
Shade · Depth · Level
Layout
Verified · Effects Layouts (blog) marks it as built and working
Tags
Reverb, Wampler

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
RefValueNormalizedTypeNotes
Resistors 9
×610K10kread from the layout by eye
×31M1Mread from the layout by eye
×1470K470kread from the layout by eye
×1100K100kread from the layout by eye
×122K22kread from the layout by eye
×16.8K6.8kread from the layout by eye
×13.3K3.3kread from the layout by eye
×1470Ω470read from the layout by eye
×110Ω10read from the layout by eye
Capacitors 6
×147pF47pread from the layout by eye
×222nF22nread from the layout by eye
×1100nF100nread from the layout by eye
×31uF1ubox film; read from the layout by eye
×1100uF100uelectrolytic; read from the layout by eye
×2220uF220uelectrolytic; read from the layout by eye
Diodes 1
×11N40011N4001printed 4001; read from the layout by eye
Transistors 1
×1J201J201JFET; read from the layout by eye
ICs 3
×1TL071TL071read from the layout by eye
×1TL072TL072read from the layout by eye
×178057805regulator, drawn in a TO-92 outline; read from the layout by eye
Potentiometers 3
ShadeB50KB50kPotentiometerread from the layout by eye
DepthB25KB25kPotentiometerread from the layout by eye
LevelC100KC100kPotentiometerread from the layout by eye
Other 1
×1BTDR-2BTDR-2Belton reverb module, off board, printed BTDR2; read from the layout by eye