Akashic Guitar effects PCB lookup
RATEDEPTHFEEDBACKVOLUMERANGESTAGESVIBRATOASSYMETRICALLOWPASSSWEEP

1590XX · 10 knobs

Aion FX

RedshiftDeluxe Phaser

Based on the Blackout Whetstone Phaser

Category
Phaser
Controls
Rate · Depth · Feedback · Volume · Range · Stages · Vibrato · Assymetrical · Lowpass · Sweep
Difficulty
Advanced
Price
$22.00in stock

From the vendor

Based on the Electro-Harmonix Small Stone, this tricked-out analog phaser adds several switches and knobs to greatly expand the tonal palette.

The Redshift Deluxe Phaser is based on the Blackout Effectors Whetstone Phaser, originally released in 2009 and discontinued when Blackout closed their doors in 2018.

The Whetstone was based on the Electro-Harmonix Small Stone, a classic OTA phaser, but with several modifications including additional controls & switches and an output gain boost to solve the level-matching issues in the original. It also replaced the obsolete CA3094 OTA with the NE5517/LM13700, essentially a dual version of the chip with somewhat improved specifications.

The Redshift is a direct clone of the Whetstone, with the exception that the 4-position rotary control for Range has been changed to a 3-position toggle and the “Fix” mode has been omitted. In the original Whetstone, the lower half of the rotation produces audible high-pitched oscillation, and the actual swept-phase frequency changes are limited to around the last 25% of the knob’s rotation.

So while it sounds good on paper, the “Fix” mode really isn’t very usable in practice, and there are many pedals that do the manual-phase effect much better than this one. This change also allows the elimination of a large and expensive rotary switch in favor of a standard 3-position toggle switch.

In addition to the removal of the Fix setting, there is one other change from the original Whetstone, in the form of an added feature: a second set of Rate/Range controls for LFO speed, and a footswitch to go between the two presets. While it doesn’t truly “ramp” (gradually speed up or slow down) like a Leslie, it does let you have a whole other effect available with the press of a footswitch.

Schematic

The schematic is in the vendor's build document, page 9. Open the build document. No KiCad fragment has been drawn for this circuit yet.

Parts list 110 rows

Report a wrong parse
RefValueNormalizedTypeNotes
Resistors 48
R1100k100kMetal film resistor, 1/4W
R2470k470kMetal film resistor, 1/4W
R310k10kMetal film resistor, 1/4W
R44k74.7kMetal film resistor, 1/4W
R54k74.7kMetal film resistor, 1/4W
R627k27kMetal film resistor, 1/4W
R727k27kMetal film resistor, 1/4W
R81k1kMetal film resistor, 1/4W
R927k27kMetal film resistor, 1/4W
R1010k10kMetal film resistor, 1/4W
R1127k27kMetal film resistor, 1/4W
R121k1kMetal film resistor, 1/4W
R1327k27kMetal film resistor, 1/4W
R1410k10kMetal film resistor, 1/4W
R1527k27kMetal film resistor, 1/4W
R161k1kMetal film resistor, 1/4W
R1727k27kMetal film resistor, 1/4W
R1810k10kMetal film resistor, 1/4W
R1927k27kMetal film resistor, 1/4W
R201k1kMetal film resistor, 1/4W
R2127k27kMetal film resistor, 1/4W
R2210k10kMetal film resistor, 1/4W
R2327k27kMetal film resistor, 1/4W
R243k33.3kMetal film resistor, 1/4W
R254k74.7kMetal film resistor, 1/4W
R2627k27kMetal film resistor, 1/4W
R2722k22kMetal film resistor, 1/4W
R282M22.2MMetal film resistor, 1/4W
R292M22.2MMetal film resistor, 1/4W
R3010k10kMetal film resistor, 1/4W
R3222k22kMetal film resistor, 1/4W
R334k74.7kMetal film resistor, 1/4W
R3415k15kMetal film resistor, 1/4W
R351k81.8kMetal film resistor, 1/4W
R361k1kMetal film resistor, 1/4W
R3727k27kMetal film resistor, 1/4W
R3827k27kMetal film resistor, 1/4W
R397k57.5kMetal film resistor, 1/4W
R401k81.8kMetal film resistor, 1/4W
R4147k47kMetal film resistor, 1/4W
R42100R100Metal film resistor, 1/4W
R4315k15kMetal film resistor, 1/4W
R4410k10kMetal film resistor, 1/4W
R45100R100Metal film resistor, 1/4W
RPD2M22.2MMetal film resistor, 1/4W
LEDR4k74.7kMetal film resistor, 1/4W
LEDRA4k74.7kMetal film resistor, 1/4W
LEDRB2k22.2kMetal film resistor, 1/4WUse 2k2 for a green LED to match brightness of a red LED with 4k7.
Capacitors 26
C16n86.8nFilm capacitor, 7.2 x 2.5mm
C2100n100nFilm capacitor, 7.2 x 2.5mm
C310uF10uElectrolytic capacitor, 5mm
C46n86.8nFilm capacitor, 7.2 x 2.5mm
C56n86.8nFilm capacitor, 7.2 x 2.5mm
C6220n220nFilm capacitor, 7.2 x 2.5mm
C76n86.8nFilm capacitor, 7.2 x 2.5mm
C8680pF680pMLCC capacitor, NP0/C0G
C96n86.8nFilm capacitor, 7.2 x 2.5mm
C1047n47nFilm capacitor, 7.2 x 2.5mm
C1147n47nFilm capacitor, 7.2 x 2.5mm
C12100n100nFilm capacitor, 7.2 x 2.5mm
C1322uF22uElectrolytic capacitor, 5mm
C14100n100nFilm capacitor, 7.2 x 2.5mm
C15100n100nFilm capacitor, 7.2 x 2.5mm
C161uF1uElectrolytic capacitor, 4mm
C1722uF22uElectrolytic capacitor, 5mm
C18100uF100uElectrolytic capacitor, 6.3mm
C191uF1uElectrolytic capacitor, 4mm
C2022uF22uElectrolytic capacitor, 5mm
C21100uF100uElectrolytic capacitor, 6.3mm
C2222uF22uElectrolytic capacitor, 5mm
C23100uF100uElectrolytic capacitor, 6.3mm
C2433uF33uElectrolytic capacitor, 5mm
C2547uF47uElectrolytic capacitor, 5mm
C26100n100nMLCC capacitor, X7R
Diodes 2
Z11N4742A1N4742AZener diode, 12V, DO-41
D11N58171N5817Schottky diode, DO-41
Transistors 7
Q12N50882N5088BJT transistor, NPN, TO-92
Q22N50872N5087BJT transistor, PNP, TO-92
Q32N70002N7000MOSFET, N-channel, TO-92
Q42N50872N5087BJT transistor, PNP, TO-92
Q52N50872N5087BJT transistor, PNP, TO-92
Q62N50882N5088BJT transistor, NPN, TO-92
Q72N50882N5088BJT transistor, NPN, TO-92
ICs 3
IC1LM13700NLM13700NTransconductance amplifier, dual,Original uses NE5517, which is identical to the LM13700 but obsolete in
IC2LM13700NLM13700NTransconductance amplifier, dual,Original uses NE5517, which is identical to the LM13700 but obsolete in
IC3LM13700NLM13700NTransconductance amplifier, dual,Original uses NE5517, which is identical to the LM13700 but obsolete in
Potentiometers 3
DEPTH250kBB250k16mm right-angle PCB mount pot
FDBK.250kBB250k16mm right-angle PCB mount pot
LEVEL100kAA100k16mm right-angle PCB mount pot
Trimmers 1
TRIM10k10kTrimmer, 10%, 1/4"
Switches 9
VIBR.SPDTSPDTToggle switch, SPDT on-on
SWEEP SPDTToggle switch, SPDT on-onTOGGLE SWITCH, SPDT ON-ON
STAGES DPDTToggle switch, DPDT on-onTOGGLE SWITCH, DPDT ON-ON
ASYM.DPDTDPDTToggle switch, DPDT on-on
LOW PDPDTDPDTToggle switch, DPDT on-on
RNG. ASPDT cntr offSPDT CNTR OFFToggle switch, SPDT on-off-on
RNG. BSPDT cntr offSPDT CNTR OFFToggle switch, SPDT on-off-on
FSW3PDT3PDTStomp switch, 3PDT
RSW3PDT3PDTStomp switch, 3PDT
LEDs 3
LED5mm5MMLED, 5mm, red diffused
LED_A5mm red5MM REDLED, 5mm, red diffused
LED_B5mm green5MM GREENLED, 5mm, green diffused
Jacks & sockets 6
IC1-SDIP16 socketDIP16 SOCKETIC socket, DIP-16
IC2-SDIP16 socketDIP16 SOCKETIC socket, DIP-16
IC3-SDIP16 socketDIP16 SOCKETIC socket, DIP-16
IN1/4" mono1/4" MONO1/4" phone jack, closed frameSwitchcraft 111X or equivalent.
OUT1/4" mono1/4" MONO1/4" phone jack, closed frameSwitchcraft 111X or equivalent.
DC2.1mm2.1MMDC jack, 2.1mm panel mountMouser 163-4302-E or equivalent.
Hardware 1
ENC1590XX1590XXEnclosure, die-cast aluminum1790NS equivalent.
Other 1
DIP16through-hole format.THROUGH-HOLE FORMAT.