Brandon Muteboard REV1 Parts List

IC1 - TL074CN
IC2 - TL062CP

D1 - 1N4004 (observe polarity!)
D2 - 1N4148 (observe polarity!)
D3 - 1N4148 (observe polarity!)

J1 - DB25 Female Chassis Connector

All LEDs orient with long lead in the round hole.
LED1 - 3mm Green LED
LED2 - 3mm Red LED
LED3 - 3mm Yellow LED

(1) 14 Pin IC Socket (machine type)
(1) 8 Pin IC Socket (machine type)

Q1 - 2N2222
Q2 - 2N2907
Q3 - 2N2222
Q4 - 2N2222
Q5 - 2N2222

All Resistors are 1/8 Watt
R1  - 1k
R2  - 1k
R3  - 2.2k
R4  - 8.2k
R5  - 5.6k
R6  - 39k
R7  - 2.2k
R8  - 47k
R9  - 470k
R10 - 1k
R11 - 10k
R12 - 1k
R13 - 10k
R14 - 10k
R15 - 10k
R16 - 1k
R17 - 4.7k
R18 - 1k
R19 - 10k
R20 - 10k
R21 - 4.7k
R22 - 4.7k
R23 - 10k
R24 - 4.7k

NOTE:  Components that are supplied on a "carrier" paper should have their leads cut from the 
carrier near the edge of the paper.  Don't try to pull the component away from the carrier 
otherwise you could damage it.

NOTE: Some components have pre-bent leads and may need to be reformed to allow the part to 
fully seat on the surface of the circuit board.

NOTE:  Polarized capacitor locations include a "+" (plus sign) silkscreened where the positive 
lead orients.

C1  - .068uF film box capacitor (red)
C2  - .1uF Ceramic .1"LS (Marked "104")(small yellow)
C3  - 10uF 16 or 25V Polarized Electrolytic (observe polarity!)
C4  - .1uF Ceramic .1"LS (Marked "104")(small yellow)
C5  - 1uF Tantalum (105) (green or yellow) (observe polarity - printing faces the lower edge of board)
C6  - .1uF Ceramic .1"LS (Marked "104")(small yellow)
C7  - .1uF Ceramic .1"LS (Marked "104")(small yellow)
C8  - .068uF film box capacitor (red)
C9  - .068uF film box capacitor (red)
C10 - .1uF Ceramic .1"LS (Marked "104")(small yellow)
C11 - 10uF 16 or 25V Polarized Electrolytic (observe polarity!)
C12 - 1.0uF Ceramic.1"LS (Marked "105")(small yellow)
C13 - 0.47uF Ceramic .2"LS (Marked "474")(wide yellow)
C14 - .01uF .1"LS  (Marked "103")(yellow)
C15 - .001uF .1"LS  (Marked "102")(blue)
C16 - 10uF BP (Non-Polar) 16 or 25V - Can be installed either way.

Brandon Muteboard REV1 printed circuit board.
LS = Component lead spacing - .1 inches = 2.54mm - .2 inches = 5.08mm