Akashic Guitar effects circuit lookup
123

1590BB

Mod Electronics

Phase / OffModulation - Phaser

Category
Phaser
Difficulty
Medium
Price
$65.95in stock

From the vendor

Modulation - Phaser

The Phase / Off is a four-stage phaser based around the Sound Semiconductor SSI2140 voltage-controlled multi-mode filter. This pedal offers classic phasing effects along with plenty of control to dial in the perfect amount of modulation using the Depth, Rate, and Regen knobs. The Stages switch can change the Phase / Off from four-stage phaser to a two-stage phaser providing a wide variety of different phasing sounds. Change the Mode switch from LFO to Manual to use the Phase / Off in fixed phase mode controlled by the Depth knob for unique filtering effects.

The Phase / Off pedal kit is the second entry in the Nexus Series from Mod Electronics. This series features a PCB base rather than the Mod Electronics’ traditional point-to-point wiring kits to offer builders an even wider variety of effects to build. The Phase / Off is a great pedal for intermediate skill sets. It features an all through-hole build with pre-soldered SMT SSI2140.

The pedal operates on 9VDC. A center negative power supply is required for use (not included with kit). There is no battery connection. The pedal draws ~50mA. The enclosure size is a standard 1590BB (4.7" x 3.7" x 1.34").

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 70 rows

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RefValueNormalizedTypeNotes
Resistors 35
R110KΩ10k
R2200Ω200
R310KΩ10k
R410KΩ10k
R5200Ω200
R610KΩ10k
R733KΩ33k
R810KΩ10k
R95.1KΩ5.1k
R1033KΩ33k
R1110KΩ10k
R1210KΩ10k
R1313KΩ13k
R148.2KΩ8.2k
R15100Ω100
R1610KΩ10k
R17200Ω200
R1810KΩ10k
R1910KΩ10k
R20200Ω200
R2110KΩ10k
R2216KΩ16k
R231KΩ1k
R24100KΩ100k
R2551KΩ51k
R2610KΩ10k
R2710KΩ10k
R2810KΩ10k
R2918KΩ18k
R3010KΩ10k
R311MΩ1M
R323KΩ3k
R33100Ω100
R3447KΩ47k
R3547KΩ47k
Capacitors 20
C11nF1n
C21nF1n
C3470nF470n
C4100nF100n
C547pF47p
C6100uF100u
C7100uF100u
C8100nF100n
C9100nF100n
C10100nF100n
C11100nF100n
C121nF1n
C131nF1n
C14470pF470p
C151.5nF1.5n
C16100nF100n
C17100nF100n
C1810pF10p
C19100uF100u
C20470nF470n
Diodes 3
D11N41481N4148
D21N41481N4148
D31N58171N5817
Transistors 1
Q12N22222N2222
ICs 4
U1SSI2140SSI2140
U2LM311LM311
U3TL074TL074
U4LT1054LT1054
Potentiometers 3
RV1B10KΩB10k
RV2A10KΩA10k
RV3B50KΩB50k
Switches 2
SW1SPDTSPDT
SW2DPDTDPDT
LEDs 2
×1LEDLEDfrom the kit's parts list (P-L353)
×1LEDLEDfrom the kit's parts list (P-L710-BLU)