Thumb Sucker Compressor

Based on the Valve Wizard Engineer's Thumb· 8 other boards clone it

From the vendor

Controls

• Attack

• Bright (Toggle switch)

• Release

• Level

• Ratio

• Threshold

Details

• Designed for a 125B enclosure with top-mounted jacks

The schematic is in the vendor's build document, page 3. Open the build document. No KiCad fragment has been drawn for this circuit yet.

Ref	Value	Normalized	Type	Notes
Resistors 15
R1	10M	10M	Resistor, 1/4W
R2	1K	1k	Resistor, 1/4W
R3	100K	100k	Resistor, 1/4W
R4	10K	10k	Resistor, 1/4W
R5	10K	10k	Resistor, 1/4W
R6	220R	220	Resistor, 1/4W
R7	10K	10k	Resistor, 1/4W
R8	1K	1k	Resistor, 1/4W
R9	1K	1k	Resistor, 1/4W
R10	1K	1k	Resistor, 1/4W
R11	1M	1M	Resistor, 1/4W
R12	100R	100	Resistor, 1/4W
R100	10K	10k	Resistor, 1/4W
R101	1M	1M	Resistor, 1/4W
R102	1M	1M	Resistor, 1/4W
Capacitors 8
C1	10n	10n	Film capacitor, 7.2 x 2.5mm
C2	100p	100p	Ceramic capacitor
C3	4n7	4.7n	Film capacitor, 7.2 x 2.5mm
C4	10u	10u	Electrolytic capacitor, 5mm
C5	1u	1u	Electrolytic capacitor, 5mm
C6	1u	1u	Electrolytic capacitor, 5mm
C100	100u	100u	Electrolytic capacitor, 5mm
C101	10u	10u	Electrolytic capacitor, 5mm
Diodes 6
D1	1N4148	1N4148	Signal diode, DO-35
D2	1N4148	1N4148	Signal diode, DO-35
D3	3mm Red	3MM RED	3mm Red LED, Diffused
D4	3mm Red	3MM RED	3mm Red LED, Diffused
D5	1N4148	1N4148	Signal diode, DO-35
D100	1N5817	1N5817	Schottky diode, DO-41
Transistors 1
Q1	2N3906	2N3906	BJT transistor, PNP TO-92
ICs 3
IC1	TL072	TL072	Dual op-amp, DIP8
IC2	TL072	TL072	Dual op-amp, DIP8
IC3	LM13700	LM13700	Transconductance Amplifier (OTA)
Potentiometers 4
ATTACK	B100K	B100k	16mm right-angle PCB mount pot
RELEASE	B1M	B1M	16mm right-angle PCB mount pot
LEVEL	A10K	A10k	16mm right-angle PCB mount pot
RATIO	A1M	A1M	16mm right-angle PCB mount pot
Switches 1
BRIGHT	ON/ON	ON/ON	Toggle switch, SPDT	2-position (ON/ON)
Other 1
THRESHOLD B1M	16mm right-angle PCB mount pot	16MM RIGHT-ANGLE PCB MOUNT POT