Analog Mixer

`Created on 28 Nov 2015`

Mixing boards can be expensive. We make it considerably cheaper with our cool ECE education.

We'll construct an analog mixer using a variety of circuits to do some of the things a digital mixing board does. The circuits will each connect to a respective pre-amplifier, then all to a single amplifying summing circuit at the end to put the different signals back together.

@anamdev

Adit Namdev

@cjwei

Chris Wei

@aprasann

Anand Prasanna

Part	Cost	Quantity	Total
Invalid Request	$2.11	3	$6.33
on off switch
RCA (Composite Video, Audio) Female Jack Terminal Block ID: 2793 - $2.	$2.50	8	$20.00
RCA Female
E-Projects - 400 Piece, 16 Value Resistor Kit (10 Ohm - 1M Ohm): Singl	$9.99	1	$9.99
Resistors
Amazon.com: Foxnovo 125pcs 25 Values Total Electrolytic Capacitors Ass	$10.99	1	$10.99
Capacitor
LM833N/NOPB Texas Instruments \| Integrated Circuits (ICs) \| DigiKey	$0.74	10	$7.40
opamp
500 Service Unavailable Error	$5.57	6	$33.42
knob pot
PTB6043-2010BPB103 Bourns Inc. \| Potentiometers, Variable Resistors \|	$4.45	1	$4.45
master slider pot
PS45G-C1LBR10KN TT Electronics/BI \| Potentiometers, Variable Resistors	$3.58	2	$7.16
channel slider pot
Amazon.com: HDVD™ New 10pack 10 inch(30cm) 2.1 x 5.5mm DC Power Pigtai	$5.27	1	$5.27
power female pigtail
Invalid Request	$1.02	6	$6.12
NE5532AP omp amp for EQ's
USB to TTL Serial Cable - Debug / Console Cable for Raspberry Pi ID: 9	$9.95	1	$9.95
usb to ttl cable
500 Service Unavailable Error	$8.90	1	$8.90
protoboard
Invalid Request	$7.25	1	$7.25
15 volt ac-dc wall adapter
Amazon.com: 100Pcs New 3mm 2 Pins Super Bright LED Light Round Lamp Bu	$2.81	3	$8.43
LEDs
DC Boarduino (Arduino compatible) Kit (w/ATmega328) [v1.0] ID: 72 - $1	$17.50	1	$17.50
Boarduino
Amazon.com: Mediabridge 3.5mm Male to 2-Male RCA Adapter (6 Feet) - St	$9.99	1	$9.99
RCA to Aux
Amazon.com : Boss AR1500M ARMOR 1, 500-Watt Mono Mosfet Amplifier : Ve	$44.99	1	$44.99
mosfet amp
Amazon.com: Lepai LP-2020A+ Tripath TA2020 Class-T Hi-Fi Audio Amplifi	$25.88	1	$25.88
audio amp (5-6 weeks for shipping)
Project Totals:		49	$244.02
Track 1 Base Budget:			$250.00
Preferred Vendor Budget Bonus:			$50.00
Remaining Budget:			$55.98