1590B · 5 knobs

Re-verb

Category: Reverb
Controls: Reverb · Tone · Feedbk · Depth · Osc
Price: €9.16in stock

Buy the PCB at TH Custom Effects Build document4.0

From the vendor

Spring reverb pedal with Accutronics/Belton BTDR-2 brick, variable tone shaping, feedback loop, and DEEP boost switch. Fits a standard 1590B enclosure. If you wish to add reverb to your pedalboard or use it in your amp because it does not have one — you are at the right place. The Re-Verb uses the Accutronics BTDR-2 digital reverb brick for two reasons: it is easy to use and good sounding. There are three brick variants: Short (BTDR-2S) , Medium (BTDR-2M) , and Long (BTDR-2L) . The Short version is commonly preferred, but all three have useful reverb times in the 1.5–2.9 second range and each sounds good in practice. What makes this reverb special is its unique tone control . You can shape t

Schematic

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

Parts list 38 rows

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Ref	Value	Normalized	Notes
Resistors 19
R1	10K	10k	Metal film ¼ W
R2	10K	10k	Metal film ¼ W
R3	2M2	2.2M	Metal film ¼ W — input pull-down
R4	1M	1M	Metal film ¼ W
R5	240K	240k	Metal film ¼ W
R6	47K	47k	Metal film ¼ W
R7	5K1	5.1k	Metal film ¼ W — reverb brick OUT1 summing
R8	10K	10k	Metal film ¼ W
R9	10K	10k	Metal film ¼ W
R10	33K	33k	Metal film ¼ W
R11	12K	12k	Metal film ¼ W — IC1D feedback
R12	33K	33k	Metal film ¼ W — output protection
R13	5K1	5.1k	Metal film ¼ W — reverb brick OUT2 summing
R14	47K	47k	Metal film ¼ W
R15	47K	47k	Metal film ¼ W
R16	15K	15k	Metal film ¼ W — tone network
R17	15K	15k	Metal film ¼ W — tone network
R19	33K	33k	Metal film ¼ W
R20	68K	68k	Metal film ¼ W — optional, OSC path only
Capacitors 11
C1	100 µF	100u	Electrolytic polarised — 9 V rail decoupling
C2	47 µF	47u	Electrolytic polarised — VB virtual ground decoupling
C3	47 µF	47u	Electrolytic polarised — VA (+5 V) decoupling
C4	100 nF	100n	Box film — input coupling cap
C5	100 nF	100n	Box film — decoupling
C6	47 nF	47n	Box film — tone network alt: 10 nF
C7	47 nF	47n	Box film — tone network alt: 10 nF
C8	4.7 nF	4.7n	Box film — HF shelf on IC1D feedback
C9	1 µF	1u	Box film — output coupling cap
C11	100 nF	100n	Box film — feedback loop coupling
C12	100 nF	100n	Box film — IC1D output decoupling
Diodes 1
D1	1N4001	1N4001	Rectifier diode — reverse polarity protection on +9 V rail
ICs 2
IC1	TL074	TL074	Quad JFET op-amp, DIP-14 alt: TL064 alt: TL084
IC2	BTDR-2L	BTDR-2L	Accutronics/Belton Digi-Log reverb brick alt: BTDR-2S alt: BTDR-2M
Potentiometers 3
REVERB	B25K	B25k	25 kΩ linear, 16 mm right-angle PCB mount
TONE	B100k	B100k	100 kΩ linear, 16 mm right-angle PCB mount
FEEDBK	B10k	B10k	10 kΩ linear, 16 mm right-angle PCB mount
Switches 2
Depth	SPDT	SPDT	Mini toggle switch — DEEP / Normal mode selector
Osc	SPDT	SPDT	Mini toggle switch — feedback routing optional