Akashic Guitar effects PCB lookup
DELAYLEVELSPEEDREPEATSNOISEDEPTH

125B · 6 knobs

JMK PCBs· 032

Modulay

Category
Delay
Controls
Delay · Level · Speed · Repeats · Noise · Depth
Price
$12.00in stock

From the vendor

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The Modulay is a PT2399 delay in the classic style, meaning that it hails from the same data sheet setup as many other PT2399 delays – but with a pair of modifications. Along with the classic PT2399 design, we have included as an internal trimpot the fantastic ‘noise’ control developed by DIY community member Culture Jam (CJ). CJ’s simple design allows the user to adjust the filtering of the wet signal from ‘bright and noisy’ to ‘dark and cleaner.’ An additional feature of this particular delay includes a modulation circuit found in a few other designs, with an external control for the depth of the modulation and an internal control for the speed.

Particularly of note, this effect PCB is designed for a single sized enclosure – that’s right, a PT2399 delay WITH modulation that fits in a 125B easily and could be made to fit in a 1590B with a little careful planning. These sorts of projects don’t come along every day!

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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 64 rows

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RefValueNormalizedTypeNotes
Resistors 28
R110K10k
R1110K10k
R21220R220
R21M1M
R1220K20k
R221.5M1.5M
R3180K180k
R1310K10k
R23680K680k
R4100K100k
R1410K10k
R24240K240k
R51K1k
R151K1k
R252K2k
R610K10k
R16220R220
R2639K39k
R710K10k
R1727K27k
R27220R220
R8360K360k
R1820K20k
R28220R220
R910K10k
R1920K20k
R104.7K4.7k
R2010K10k
Capacitors 25
C1100nF100n
C1147pF47p
C2147nF47n
C2100nF100n
C124.7nF4.7n
C2247uF47u
C3100nF100n
C132.2nF2.2n
C2347uF47u
C4100nF100n
C142.2nF2.2n
C2410uF10u
C151uF1u
C2547uF47u
C622nF22n
C1610nF10n
C262.2uF2.2u
C747uF47u
C1722nF22n
C847uF47u
C181uF1u
C91uF1u
C191uF1u
C10100pF100p
C201uF1u
Diodes 1
D11N40011N4001
Transistors 1
Q1BC560BC560
ICs 3
IC1TL072TL072
IC3TL072TL072
IC2PT2399PT2399
Potentiometers 6
DELAYB50KB50kPotentiometer
LEVELB50KB50kPotentiometer
SPEEDB1MB1MPotentiometer
REPEATSB50KB50kPotentiometer
NOISEB25KB25kPotentiometer
DEPTHA100KA100kPotentiometer