Akashic Guitar effects circuit lookup
12

1590N1

From the vendor

The Small Clone, which the Memoria is based on, is a classic analog chorus which uses the MN3007 1024-stage bucket brigade chip. It provides classic, lush chorus sounds which have been heard on countless classic works, most notably Nirvana’s Nevermind. The rate control allows the chorus to go from a smooth, slow-moving chorus to a rapidly pulsating sound, and the depth control allows the effect to be subtle, in-your-face, or anything in-between. Due to the moderately large parts count and required board size, the Memoria is intended to be used without a battery when built into the recommended 1590N1/125B or C65. If battery operation is required, a larger enclosure is recommended. The Memoria can be mounted via the potentiometers, but it also has two M3-sized mounting holes for optional offboard wiring of the potentiometers. With the input connected to a guitar and the output connected to an amplifier, engage the pedal and adjust the trim pot until you hear a nice chorus effect with minimal signal distortion. [Optional] Insert a boost pedal or similar between your guitar and the Memoria. Starting at a low level, increase the boost until you hear some signal distortion, then adjust the trimpot to minimize the distortion. Continue increasing the volume and adjusting the trimpot. At a certain input level, it will not be possible to eliminate the distortion entirely. At this point, decrease the input signal until the distortion can be eliminated again and set the trimmer to where the distortion is minimized. The goal is to eliminate signal distortion for the loudest input where it is possible to do so.

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 67 rows

Report a wrong parse

Got parts in a drawer? See what you can build with them.

RefValueNormalizedTypeNotes
Resistors 33
R139k39kVishay PR01 or generic 1/4W resistor(R-PR01-39K)
R2120k120kVishay PR01 or generic 1/4W resistor(R-PR01-120K)
R3470k470kVishay PR01 or generic 1/4W resistor(R-PR01-470K)
R410k10kVishay PR01 or generic 1/4W resistor(R-PR01-10K)
R510k10kVishay PR01 or generic 1/4W resistor(R-PR01-10K)
R612k12kVishay PR01 or generic 1/4W resistor(R-PR01-12K)
R739k39kVishay PR01 or generic 1/4W resistor(R-PR01-39K)
R833k33kVishay PR01 or generic 1/4W resistor(R-PR01-33K)
R910k10kVishay PR01 or generic 1/4W resistor(R-PR01-10K)
R1039k39kVishay PR01 or generic 1/4W resistor(R-PR01-39K)
R1139k39kVishay PR01 or generic 1/4W resistor(R-PR01-39K)
R1247k47kVishay PR01 or generic 1/4W resistor(R-PR01-47K)
R1382k82kVishay PR01 or generic 1/4W resistor(R-PR01-82K)
R1468k68kVishay PR01 or generic 1/4W resistor(R-PR01-68K)
R1522k22kVishay PR01 or generic 1/4W resistor(R-PR01-22K)
R16220k220kVishay PR01 or generic 1/4W resistor(R-PR01-220K)
R1720k20kVishay PR01 or generic 1/4W resistor(R-PR01-20K)
R1810k10kVishay PR01 or generic 1/4W resistor(R-PR01-10K)
R193k33.3kVishay PR01 or generic 1/4W resistor(R-PR01-3D3K)
R20220k220kVishay PR01 or generic 1/4W resistor(R-PR01-220K)
R216k86.8kVishay PR01 or generic 1/4W resistor(R-PR01-6D8K)
R2233k33kVishay PR01 or generic 1/4W resistor(R-PR01-33K)
R231k1kVishay PR01 or generic 1/4W resistor(R-PR01-1K)
R2410k10kVishay PR01 or generic 1/4W resistor(R-PR01-10K)
R2533k33kVishay PR01 or generic 1/4W resistor(R-PR01-33K)
R266k86.8kVishay PR01 or generic 1/4W resistor(R-PR01-6D8K)
R271k1kVishay PR01 or generic 1/4W resistor(R-PR01-1K)
R28100k100kVishay PR01 or generic 1/4W resistor(R-PR01-100K)
R29180k180kVishay PR01 or generic 1/4W resistor(R-PR01-180K)
R3010k10kVishay PR01 or generic 1/4W resistor(R-PR01-10K)
R3147R47Vishay PR01 or generic 1/4W resistor(R-PR01-47)
R3256k56kVishay PR01 or generic 1/4W resistor(R-PR01-56K)
R3356k56kVishay PR01 or generic 1/4W resistor(R-PR01-56K)
Capacitors 22
C12n72.7nBox film capacitor, 7.2 x 2.5mm(C-R82-2N2)
C24n74.7nBox film capacitor, 7.2 x 2.5mm(C-R82-4N7)
C3180p180pCeramic disc capacitor(C-D200P-50)
C4150p150pCeramic disc capacitor(C-D150P-50)
C510u10uPolarized electrolytic capacitor, 5mm(C-ETR10-50)
C62u22.2uPolarized electrolytic capacitor, 5mm(C-ETR2D2-50)
C715n15nBox film capacitor, 7.2 x 2.5mm(C-R82-15N)
C81n1nBox film capacitor, 7.2 x 2.5mm(C-R82-1N)
C91n1nBox film capacitor, 7.2 x 2.5mm(C-R82-1N)
C1047n47nBox film capacitor, 7.2 x 2.5mm(C-R82-47N)
C113n33.3nBox film capacitor, 7.2 x 2.5mm(C-R82-3N3)
C1210n10nBox film capacitor, 7.2 x 2.5mm(C-R82-10N)
C1333n33nBox film capacitor, 7.2 x 2.5mm(C-R82-33N)
C141u1uPolarized electrolytic capacitor, 5mm(C-ETR1-50)
C151u1uPolarized electrolytic capacitor, 5mm(C-ETR1-50)
C1610n10nBox film capacitor, 7.2 x 2.5mm(C-R82-10N)
C171u1uPolarized electrolytic capacitor, 5mm(C-ETR1-50)
C1810u10uPolarized electrolytic capacitor, 5mm(C-ETR10-50)
C1910u10uPolarized electrolytic capacitor, 5mm(C-ETR10-50)
C2010u10uPolarized electrolytic capacitor, 5mm(C-ETR10-50)
C2110u10uPolarized electrolytic capacitor, 5mm(C-ETR10-50)
C22220u220uPolarized electrolytic capacitor, 8mm(C-ETR220-25)
Diodes 2
D11n41481N4148Silicon diode, DO-35(P-Q971)
D21n41481N4148Silicon diode, DO-35(P-Q971)
Transistors 3
Q12n50872N5087Silicon transistor, TO-92(P-Q2N5087)
Q22n50882N5088Silicon transistor, TO-92(P-Q2N5088)
Q32n50882N5088Silicon transistor, TO-92(P-Q2N5088)
ICs 4
U1CD4047CD4047Multivibrator BBD clock source, DIP-14(P-QCD4047)
U2LM358LM358Dual op-amp, DIP-8(P-QLM358)
U3MN3007MN30071024-stage bucket brigade delay(P-Q-XMN3007)
U4NJM4558NJM4558Dual op-amp, DIP-8(P-Q4558)
Potentiometers 2
RV2C1MC1M16mm right angle PCM Alpha potentiometer(R-VAM1MC-SS-PCL)
RV3B10kB10k16mm right angle PCM Alpha potentiometer(R-VAM10KL-SS-PCL)
Trimmers 1
RV1100k100kBourns 3362P trimpot(R-VT62P-100K)

Other boards based on the Electro-Harmonix Small Clone