Akashic Guitar effects circuit lookup
LEVELATTACKRATIORELEASETHRESHOLD

1590BBS · 5 knobs

Dead End FX

Engineer'S Thumb

Category
Compressor
Controls
Level · Attack · Ratio · Release · Threshold
Price
$15.00in stock
Buy the PCB at Dead End FX Build document

From the vendor

Merlin's wonderful compressor, in a 5 knob format. A great tool that should be standard on every pedalboard. We decided to offer this in a the 5 knob format.... because we can. Why not have more, when you can have more. Right?

Schematic

The schematic is in the vendor's build document, page 2. Open the build document. No KiCad fragment has been drawn for this circuit yet.

Parts list 41 rows

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ocr read from an image · sch paired from the schematic · fixed corrected by hand. Check marked values against the build document.

RefValueNormalizedTypeNotes
Resistors 17
R11K21ocr1.21k
R23K9ocr3.9k
R310Mocr10M
R41kocr1k
R5100Rocr100
R6100kocr100k
R71Kocr1k
R810Kocr10k
R910Kocr10k
R101Kocr1k
R111Mocr1M
R12220rocr220
R1310Kocr10k
R141Kocr1k
R1533Rocr33
R161Mocr1M
R171Mocr1M
Capacitors 8
C110nocr10n
C2100pocr100p
C31uocr1u
C41uocr1u
C54n7ocr4.7n
C610uocr10u
C747uocr47u
C81uocr1u
Diodes 5
D11N4148ocr1N4148
D51N4148ocr1N4148
D61N4148ocr1N4148
D71N4148ocr1N4148
D81N4001ocr1N4001
Transistors 1
Q1BS170schBS170
ICs 3
IC1TL072ocrTL072
IC2TL072ocrTL072
IC3LM13700ocrLM13700
Potentiometers 5
LEVELA10KocrA10kPotentiometer
ATTACKA100KocrA100kPotentiometer
RATIOA1MocrA1MPotentiometer
RELEASEB500KocrB500kPotentiometer
THRESHOLDB1MocrB1MPotentiometer
Switches 2
SW13PDTocr3PDT
SW2SPDT ON-ONocrSPDT ON-ON