Akashic Guitar effects PCB lookup
SENSFRQ

125B · 2 knobs

Lectric-FX

FAT32 Dynamic Filter

Based on the BOSS FT-2

Category
EQ / Filter
Controls
Sens · Frq
Price
$14.99out of stock

From the vendor

Compare to BOSS FT-2 from the mid 80’s, using the obsolete dual VCA M5207L01 chip. Dual stacked PCBs, meant to fit inside the 125B enclosure. Comes with 1mm spaced M3 nylon washers, and color-matched mini 3pdt pcb (if available). Link to mini 3pdt pcb.

This can be built with only the “up” or “down” options, or with a rotary offering an additional “manual” setting that allows cocked wah sounds and/or an expression pedal out via a stereo jack.

Can be purchased as pcb set (both pcb’s with mini 3pdt pcb), or the very same bundled with a tested M5207L01 chip.

Much more info in the document below.

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 85 rows

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RefValueNormalizedTypeNotes
Resistors 49
R3610k10k
R11M1M
R3710k10k
R210k10k
R3810k10k
R310k10k
R3910k10k
R410k10k
R4022k22k
R510k10k
R414k74.7k
R647k47k
R421k1k
R747k47k
R434k74.7k
R810k10k
R4410k10k
R910k10k
R4515k15k
R1010k10k
R4647k47k
R1110k10k
R4722k22k
R1212k12k
R4847k47k
R1347k47k
R493k33.3k
R1447k47k
R1510k10k
R1647k47k
R1747k47k
R1847k47k
R19100k100k
R201M1M
R2110k10k
R221k1k
R232k22.2k
R2447k47k
R251M1M
R2622k22k
R2710k10k
R2812k12k
R294k74.7k
R3010k10k
R3110k10k
R3220k20k
R3310k10k
R3447k47k
R3510k10k
Capacitors 20
C122n22n
C247u47u
C310u10u
C46n86.8n
C510u10u
C61u1u
C76n86.8n
C81n51.5n
C91n51.5n
C101u1u
C1110u10u
C124n74.7n
C13100p100p
C1410p10p
C15100p100p
C162u22.2u
C1710u10u
C18220n220n
C21100u100u
C2247u47u
Diodes 6
D11n41481N4148
D21n41481N4148
D31n41481N4148
D41n41481N4148
D51n41481N4148
D61n58171N5817
Transistors 2
Q12N54572N5457
Q22N50882N5088
ICs 6
IC1M5207L01M5207L01
IC2NJM2904NJM2904
IC3NJM4580NJM4580
IC4NJM2904NJM2904
IC5NJM2904NJM2904
IC6NJM4580NJM4580
Potentiometers 2
SENS250KBB250kPotentiometer
FRQ50KBB50kPotentiometer