125B · 4 knobs

Mu Blaster

Based on the Electronic Audio Experiments Mu Blaster· 1 other board clones it

Category: Boost
Controls: Volume · Boost · Filter · Depth
Price: $10.00in stock

Buy the PCB at Electronic Audio Experiments Build document1 BOM spreadsheet

From the vendor

PCB for the Mu Blaster high voltage FET boost/drive. Highly recommended as a beginner surface mount build. For more details view the archived product page here. Includes a 3PDT daughterboard for proper mounting of the bypass footswitch and LED.

Schematic

The schematic is in the vendor's build document, page 11. Open the build document. No KiCad fragment has been drawn for this circuit yet.

Parts list 44 rows

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Ref	Value	Normalized	Type	Notes
Resistors 11
CLR	10K	10k	Thick Film Resistor, 0805 1/8W 1%	stock varies, part is available as of 1/28/22
R2	10K	10k	Thick Film Resistor, 0805 1/8W 1%	stock varies, part is available as of 1/28/22
R6	10K	10k	Thick Film Resistor, 0805 1/8W 1%	stock varies, part is available as of 1/28/22
R10	10K	10k	Thick Film Resistor, 0805 1/8W 1%	stock varies, part is available as of 1/28/22
R1	1M	1M	Thick Film Resistor, 0805 1/8W 1%	stock varies, part is available as of 1/28/22
R3	1M	1M	Thick Film Resistor, 0805 1/8W 1%	stock varies, part is available as of 1/28/22
R4	1M	1M	Thick Film Resistor, 0805 1/8W 1%	stock varies, part is available as of 1/28/22
R5	1M	1M	Thick Film Resistor, 0805 1/8W 1%	stock varies, part is available as of 1/28/22
R7	1M	1M	Thick Film Resistor, 0805 1/8W 1%	stock varies, part is available as of 1/28/22
R8	1M	1M	Thick Film Resistor, 0805 1/8W 1%	stock varies, part is available as of 1/28/22
R9	1M	1M	Thick Film Resistor, 0805 1/8W 1%	stock varies, part is available as of 1/28/22
Capacitors 16
C20	100n	100n	Capacitor MLCC 0805 50V X7R
C3	100pF	100p	Capacitor, MLCC 0805 50V NP0
C10	10uF	10u	Capacitor, MLCC 1206 50V X5R (or better)
C11	10uF	10u	Capacitor, MLCC 1206 50V X5R (or better)
C21	10uF	10u	Capacitor, MLCC 1206 50V X5R (or better)
C7	47uF	47u	Capacitor, electrolytic
C13	47uF	47u	Capacitor, electrolytic
C14	47uF	47u	Capacitor, electrolytic
C15	47uF	47u	Capacitor, electrolytic
C2	100nF	100n	Capacitor, Box film 5mm lead spacing
C4	100nF	100n	Capacitor, Box film 5mm lead spacing
C5	1nF	1n	Capactior, box film 5mm lead spacing
C1	1uF	1u	Capacitor, box film 5mm lead spacing
C6	1uF	1u	Capacitor, box film 5mm lead spacing
C8	1uF	1u	Capacitor, box film 5mm lead spacing
C9	22nF	22n	Capacitor, box film 5mm lead spacing
Diodes 5
D1	1N5817	1N5817	Diode, Shottky	Alternative: 78-BAT54W-HE3-08
D2	1N5817	1N5817	Diode, Shottky	Alternative: 78-BAT54W-HE3-08
D3	1N5817	1N5817	Diode, Shottky	Alternative: 78-BAT54W-HE3-08
D4	1N5817	1N5817	Diode, Shottky	Alternative: 78-BAT54W-HE3-08
D5	1N5817	1N5817	Diode, Shottky	Alternative: 78-BAT54W-HE3-08
Transistors 5
Q1	MMBF5457	MMBF5457	Transistor, N Channel JFET
Q2	MMBF5457	MMBF5457	Transistor, N Channel JFET
Q3	MMBF5457	MMBF5457	Transistor, N Channel JFET
Q4	MMBF5457	MMBF5457	Transistor, N Channel JFET
Q5	MMBT5088	MMBT5088	Transistor, BJT NPN SOT23	Any MMBT5088 will work. Can also use MMBT3904 or similar.
ICs 1
IC1	LT1054	LT1054	IC, Charge Pump
Potentiometers 4
VOLUME	A100k	A100k	Potentiometer, 16mm right angle	Any standard 16mm right angle pot will work
FILTER	A10k	A10k	Potentiometer, 16mm right angle	Any standard 16mm right angle pot will work
BOOST	C10k	C10k	Potentiometer, 16mm right angle	Any standard 16mm right angle pot will work
DEPTH	C1M	C1M	Potentiometer, 16mm right angle	Any standard 16mm right angle pot will work
Switches 1
Byp	3PDT	3PDT	3PDT Footswtich w/ solder lugs	Can use PCB pin version as well - daughterboard will accommodate either
LEDs 1
LED	LED	LED	5mm LED	Any LED, your choice

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