Enclosure not stated · 6 knobs

BOSS MT2

Based on the Boss MT2· 1 other board clones it

Category: Distortion· Distortion Boost and Overdrive
Controls: Gain · Bass · Treble · Freq · Mid · Volume
Price: see vendor
Tags: Distortion Boost and Overdrive

Open the schematic at Experimentalists Anonymous

Schematic

The schematic is the archived file. Open it at Experimentalists Anonymous, or browse its folder.

Parts list 52 rows

Report a wrong parse

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

Check before you build · 2 values the reader of this schematic was not sure of

0p capacitor: value printed as '0p', probably a placeholder or not fitted
FET switch JFETs on page 4 have no part number

Ref	Value	Normalized	Type	Notes
Resistors 17
×9	10k	10k		read from the schematic by eye
×8	1M	1M		read from the schematic by eye
×8	100k	100k		read from the schematic by eye
×1	220k	220k		first op amp feedback; read from the schematic by eye
×6	2k2	2.2k		read from the schematic by eye
×4	47k	47k		read from the schematic by eye
×4	1k	1k		read from the schematic by eye
×2	470R	470		100Hz tone stage; DC adapter input; read from the schematic by eye
×1	470k	470k		100Hz tone stage; read from the schematic by eye
×1	4k7	4.7k		de-emphasis; read from the schematic by eye
×1	3k3	3.3k		read from the schematic by eye
×4	22k	22k		read from the schematic by eye
×2	330R	330		Mid control; read from the schematic by eye
×1	3k9	3.9k		LED; read from the schematic by eye
×4	56k	56k		flip-flop; read from the schematic by eye
×1	100R	100		footswitch; read from the schematic by eye
×2	33k	33k		1/2V+ divider; read from the schematic by eye
Capacitors 19
×7	47n	47n		read from the schematic by eye
×6	1u	1u		three drawn electrolytic; read from the schematic by eye
×3	15n	15n		read from the schematic by eye
×2	100p	100p		read from the schematic by eye
×1	27n	27n		read from the schematic by eye
×3	10n	10n		read from the schematic by eye
×1	1n5	1.5n		read from the schematic by eye
×2	220n	220n		one electrolytic (100Hz stage); read from the schematic by eye
×1	33n	33n		read from the schematic by eye
×2	10u	10u		electrolytic; read from the schematic by eye
×3	47p	47p		read from the schematic by eye
×1	0p	0		drawn '0p' across the EQ input buffer's 22k; likely not fitted; read from the schematic by eye
×1	100n	100n		EQ; read from the schematic by eye
×1	8n2	8.2n		Freq network; read from the schematic by eye
×1	22n	22n		Freq network; read from the schematic by eye
×2	470p	470p		flip-flop; read from the schematic by eye
×2	220p	220p		flip-flop trigger; read from the schematic by eye
×1	47u	47u		1/2V+ filter; read from the schematic by eye
×1	100u	100u		supply filter; read from the schematic by eye
Diodes 3
×5	1N4148	1N4148		drawn 4148: FET switch gates and limiter; read from the schematic by eye
×1	5V6	5V6		zener in LED feed; read from the schematic by eye
×2	Diode	DIODE		no part number given: supply protection and DC adapter series diode; read from the schematic by eye
Transistors 5
×1	2SK184	2SK184		N-JFET input buffer; or 2SK30A; read from the schematic by eye
×1	2SK118	2SK118		N-JFET FET switch; read from the schematic by eye
×2	?	?		N-JFETs of the FET switch on page 4, no part number given (likely 2SK118); read from the schematic by eye
×4	2SC3378	2SC3378		NPN tone-shaping and output transistors marked T; or 2SC732; read from the schematic by eye
×2	2SC945	2SC945		NPN flip-flop; read from the schematic by eye
ICs 1
×4	M5218AL	M5218AL		dual op amp; eight sections drawn across pages 2 and 3; read from the schematic by eye
Potentiometers 6
Gain	200k	200k	Potentiometer	read from the schematic by eye
Bass	A100k	A100k	Potentiometer	read from the schematic by eye
Treble	A100k	A100k	Potentiometer	read from the schematic by eye
Freq	A47k	A47k	Potentiometer	dual-gang 2x47k; read from the schematic by eye
Mid	A100k	A100k	Potentiometer	read from the schematic by eye
Volume	B47k	B47k	Potentiometer	read from the schematic by eye
LEDs 1
×1	Red LED	RED LED		read from the schematic by eye

Other boards based on the Boss MT2

Dark Sheep Sheepylove · €10.00