MFOS Noise Cornucopia

build in 2025 done

Cornucopia: a symbol of plentitude, strong harvests and abundance. This circuit delivers a plentitude of noise, a veritable harvest of noise, yes, I dare say... an abundance of noise. Noise, noise and more noise. This circuit gives you white noise, pink-ish noise, high pass noise, grainy noise (with grainy adjust), and lastly adjustable random gates. Noise lovers take heart this board was made for you.

BOM:

Qty.	Description	Value	Designators

Qty.	Description	Value	Designators
1	CD4024 7 Stage Binary Counter	CD4024	U5
1	TL071 Op Amp	TL071	U4
3	TL072 Dual Op Amp	TL072	U1, U2, U3
2	2N3904	2N3904	Q1, Q2
3	1N914 High Speed Diode	1N914	D1, D2, D3
1	General Purpose LED	LED	LED1
2	Linear Taper Potentiometer	100K	R18, R28
1	Resistor 1/4 Watt 5%	100K	R6
5	Resistor 1/4 Watt 5%	10K	R5, R9, R14, R20, R34
4	Resistor 1/4 Watt 5%	1K	R1, R3, R11, R32
1	Resistor 1/4 Watt 5%	1M	R7
1	Resistor 1/4 Watt 5%	200K	R19
4	Resistor 1/4 Watt 5%	20K	R26, R27, R29, R31
1	Resistor 1/4 Watt 5%	2M	R4
4	Resistor 1/4 Watt 5%	4.7K	R15, R21, R23, R24
2	Resistor 1/4 Watt 5%	43K	R16, R17
4	Resistor 1/4 Watt 5%	470K	R2, R10, R12, R33
4	Resistor 1/4 Watt 5%	47K	R13, R22, R25, R30
1	Trim Pot	500K	R8
2	Ceramic Capacitor	.001uF	C3, C15
1	Ceramic Capacitor	.0047uF or .005uF	C17
1	Ceramic Capacitor	.01uF	C14
8	Ceramic Capacitor	.1uF	C1, C2, C5, C7, C8, C10, C12, C13
1	Ceramic Capacitor	100pF	C9
2	Ceramic Capacitor	10pF	C4, C16
2	Electrolytic Capacitor	10uF	C6, C11
1	Electrolytic Capacitor	1uF	C18

Adjust R8 for approximately +/-5V peaks in the noise signal.