Akashic Guitar effects circuit lookup
MIX

1590A · 1 knob

Scientific Guitarist

Spare Room ReverbPhenomenal Reverb Powers, Itty Bitty Pedalboard Space

Category
Reverb
Controls
Mix
Price
see vendor

From the vendor

OK, so maybe attributing phenomenal reverb powers to it is overselling it a bit much, but there is no denying that you don't need a pedalboard mansion to have some reasonable reverb. Just a little spare room (get it!?) and you can eliminate the dryness from your pedal chain. While the Spare Room won't get you the same lush, dense reverb that the T60 or Riptide will, it is a fantastic effect for the space. Again, no brick here, so you know it will be economical, as well.

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In the DIY world, reverb projects seem to be few and far between. Most that are out there rely on the Belton brick or the FV-1 DSP chip. Both are great options, but both are also approximately $20 each, which makes for a pricey component. One of the more popular DIY reverb projects that requires neither of these is the Equinox II by Merlin Blencowe (AKA ValveWizard). When researching for the T60 Reverberator, I built

Schematic

The schematic is in the vendor's build document, page 1. Open the build document. No KiCad fragment has been drawn for this circuit yet.

Parts list 85 rows

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RefValueNormalizedTypeNotes
Resistors 31
R1100R100
R21M1M
R310k10k
R44k74.7k
R510k10k
R615k15k
R715k15k
R815k15k
R910k10k
R108k28.2k
R1110k10k
R1210k10k
R1310k10k
R1410k10k
R1510k10k
R164k74.7k
R1722k22k
R1810k10k
R1910k10k
R2010k10k
R21100R100
R22100k100k
R2410k10k
R2510k10k
R2610k10k
R272M22.2M
R2815k15k
R29100k100k
R30680k680k
R3147k47k
R3210k10k
Capacitors 36
C1100n100n
C215n15n
C3100n100n
C447u47u
C5100n100n
C6100n100n
C72n22.2n
C8100n100n
C9100n100n
C1010n10n
C1110n10n
C12100n100n
C1347u47u
C14100n100n
C15100n100n
C161u1u
C171n1n
C18100n100n
C19100n100n
C201u1u
C2110n10n
C222n22.2n
C23100n100n
C241u1u
C2547n47n
C261u1u
C271n1n
C281u1u
C29100u100u
C3047u47u
C31100u100u
C321u1u
C331u1u
C341u1u
C35470n470n
C36470n470n
Diodes 1
D21N58171N5817
Transistors 1
Q1BC549BC549
ICs 4
IC1TL072PTL072P
IC2DIP16DIP16
IC3DIP16DIP16
IC478L05Z78L05Z
Potentiometers 1
MIXA10kA10k
Switches 1
SWLSP10LSP10
LEDs 4
D1LEDLED
LEDLSP10LSP10
LED1LEDLED
R23RLEDRLED
Other 6
+9VLSP10LSP10
GNDLSP10LSP10
GND_INLSP10LSP10
GND_OUTLSP10LSP10
INLSP10LSP10
OUTLSP10LSP10