Akashic Guitar effects PCB lookup
DELAYFEEDBACKMIX

125B · 3 knobs

Aion FX

VectorAmbient Delay

Based on the Deep Blue Delay· 2 other boards clone it

Category
Delay
Controls
Delay · Feedback · Mix
Difficulty
Intermediate
Price
$12.50in stock

From the vendor

With similar frequency bandwidth to a tape unit, this analog-voiced digital delay is a favorite even among analog purists.

The Vector Ambient Delay is an easy delay project based on the Mad Professor Deep Blue Delay with a few modifications and improvements added.

The circuit is based around the PT2399 delay chip. While the PT2399 is technically digital, it doesn’t have the sterile sound characteristics associated with modern digital delays, but is instead much warmer and analog-voiced, with similar characteristics to a tape delay unit. It’s equally suited for short slapback effects or longer rhythmic repeats.

Your ears can be the final judge, but even most analog purists give high praise to this circuit. With the overall complexity being much lower and the cost of parts being far cheaper than a BBD-based delay, you owe it to yourself to try this one before jumping straight into a true analog delay!

The new version of the Vector removes compatibility with the Rebote 2.5 in favor of a simplified build process. The previous version of the Vector is still available if you want this option.

Schematic

The schematic is in the vendor's build document, page 6. Open the build document. No KiCad fragment has been drawn for this circuit yet.

Parts list 64 rows

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RefValueNormalizedTypeNotes
Resistors 22
R1180k180kMetal film resistor, 1/4W
R2360k360kMetal film resistor, 1/4W
R322k22kMetal film resistor, 1/4W
R412k12kMetal film resistor, 1/4W
R51k1kMetal film resistor, 1/4W
R6100k100kMetal film resistor, 1/4W
R710k10kMetal film resistor, 1/4W
R810k10kMetal film resistor, 1/4W
R910k10kMetal film resistor, 1/4W
R102k72.7kMetal film resistor, 1/4W
R1110k10kMetal film resistor, 1/4W
R1210k10kMetal film resistor, 1/4W
R1320k20kMetal film resistor, 1/4W
R141k1kMetal film resistor, 1/4W
R152k2kMetal film resistor, 1/4W
R165k15.1kMetal film resistor, 1/4W
R1720k20kMetal film resistor, 1/4W
R1810k10kMetal film resistor, 1/4W
R1910k10kMetal film resistor, 1/4W
R2033R33Metal film resistor, 1/4W
RPD2M22.2MMetal film resistor, 1/4WInput pulldown resistor. Can be as low as 1M.
LEDR10k10kMetal film resistor, 1/4WLED current-limiting resistor. Adjust value to change LED brightness.
Capacitors 24
C122n22nFilm capacitor, 7.2 x 2.5mm
C247pF47pMLCC capacitor, NP0/C0G
C3100pF100pMLCC capacitor, NP0/C0G
C41uF1uFilm capacitor, 7.2 x 3.5mm
C51uF1uFilm capacitor, 7.2 x 3.5mm
C64n74.7nFilm capacitor, 7.2 x 2.5mm
C72n22.2nFilm capacitor, 7.2 x 2.5mm
C847uF47uElectrolytic capacitor, 5mm
C9100n100nMLCC capacitor, X7R
C10100n100nMLCC capacitor, X7R
C11100n100nFilm capacitor, 7.2 x 2.5mm
C12100n100nFilm capacitor, 7.2 x 2.5mm
C1315n15nFilm capacitor, 7.2 x 2.5mm
C142n22.2nFilm capacitor, 7.2 x 2.5mm
C1510n10nFilm capacitor, 7.2 x 2.5mm
C161uF1uFilm capacitor, 7.2 x 3.5mm
C1747n47nFilm capacitor, 7.2 x 2.5mm
C1822n22nFilm capacitor, 7.2 x 2.5mm
C191uF1uFilm capacitor, 7.2 x 3.5mm
C20100uF100uElectrolytic capacitor, 6.3mmPower supply filter capacitor.
C2147uF47uElectrolytic capacitor, 5mmReference voltage filter capacitor.
C2247uF47uElectrolytic capacitor, 5mmPower supply filter capacitor. (5V)
C23100n100nMLCC capacitor, X7RPower supply filter capacitor. (5V)
C24100n100nMLCC capacitor, X7RPower supply filter capacitor.
Diodes 2
D11N58171N5817Schottky diode, DO-41
D23mm green3MM GREENLED, 3mm, green diffusedOptional current-limiting diode to prevent harsh clipping.
ICs 3
REG78L0578L05Regulator, +5V, TO-92
IC1TL072TL072Operational amplifier, DIP8
IC2PT2399PT2399Digital echo IC, DIP16
Potentiometers 3
DELAY50kBB50k16mm right-angle PCB mount pot
FDBK50kBB50k16mm right-angle PCB mount pot
MIX50kBB50k16mm right-angle PCB mount pot
Trimmers 1
INF10k10kTrimmer, 10%, 1/4”
Switches 1
FSW3PDT3PDTStomp switch, 3PDT
LEDs 1
LED5mm5MMLED, 5mm, red diffused
Jacks & sockets 5
IC1-SDIP-8 socketDIP-8 SOCKETIC socket, DIP-8
IC2-SDIP16 socketDIP16 SOCKETIC socket, DIP-16
IN1/4" stereo1/4" STEREO1/4" phone jack, closed frameSwitchcraft 112BX 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 2
BATTBattery snapBATTERY SNAP9V battery snapOptional. Use the soft plastic type—the hard-shell type will not fit.
ENC125B125BEnclosure, die-cast aluminumCan also use a Hammond 1590N1.

Other boards based on the Deep Blue Delay