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MXR Hot Tubes (PDF)

Based on the MXR Hot Tubes· 1 other board clones it

Schematic

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

Ref	Value	Normalized	Type	Notes
Resistors 12
×1	1M	1M		read from the schematic by eye
×1	120k	120k		read from the schematic by eye
×2	20k	20k		read from the schematic by eye
×1	75k	75k		read from the schematic by eye
×3	220k	220k		two bias divider, one inverter feedback; read from the schematic by eye
×1	8k2	8.2k		read from the schematic by eye
×1	150k	150k		read from the schematic by eye
×1	1m5	1.5M		read from the schematic by eye
×1	2m2	2.2M		read from the schematic by eye
×1	1m	1M		read from the schematic by eye
×1	470k	470k		read from the schematic by eye
×1	15k	15k		read from the schematic by eye
Capacitors 8
×1	30uF	30u		supply; read from the schematic by eye
×2	1uF	1u		read from the schematic by eye
×2	0.1uF	100n		read from the schematic by eye
×1	47pF	47p		read from the schematic by eye
×2	22pF	22p		read from the schematic by eye
×1	0.015uF	15n		read from the schematic by eye
×1	0.22uF	220n		read from the schematic by eye
×1	4.7uF	4.7u		read from the schematic by eye
ICs 2
×1	4558	4558		dual op amp; drawing says dual 741 or 4558; read from the schematic by eye
×1	CD4049	CD4049		hex CMOS inverter, three sections used; read from the schematic by eye
Potentiometers 2
×1	100k	100k	Potentiometer	rheostat at the first inverter input; drawing says 'unknown value 100k?'; read from the schematic by eye
×1	10K	10k	Potentiometer	output volume; drawing says 'unknown value 10K?'; read from the schematic by eye