Radial Engineering EDU-DI Build Instructions

EDU-DI
Build Instructions
Inside you will find all the parts required to build your own EDU-DI.
Use this document to assist you as you build your own direct box.
Basic Instructions:
1. RESISTORS: Start by placing the first resistor (R1) in the
designated position. There is no polarity so you may install
the resistor in any direction. Bend the wire leads at 90 degree
angles to feed the leads through the board. Spread the wire
leads slightly to ensure the resistor stays in place. Solder the
leads from the bottom of the board, then clip the excess wire
leads. Repeat this for the remaining resistors R2-R5.
2. CAPACITORS: Place the first capacitor (C1) in the assigned
designation. There is no polarity so you may install these in
any direction. You do not need to bend the leads to fit, however
after it's been inserted you can bend the wire slightly to secure
in place. Solder the leads from the bottom of the board and then
clip the excess wire leads. Repeat for C2.
3. PUSH SWITCHES: Place the first push switch (S1) in the
assigned designation. Make sure it is facing outwards from the
board, flip the board over and ensure the switch is flush to the
board, then solder the 8 pins. You do not need to clip the wire
leads. Repeat for the other switch (S2).
Soldering Hints:
1. Mount the component against the PCB
surface and bend the wire leads slightly.
© Radial Engineering Ltd. 1845 Kingsway Ave., Port Coquitlam, BC V3C 1S9, Canada © Radial Engineering Ltd. 1845 Kingsway Ave., Port Coquitlam, BC V3C 1S9, Canada
(604) 942-1001 • info@radialeng.com • Manual Part #: R870 1095 99 / 07-2022 (604) 942-1001 • info@radialeng.com • Manual Part #: R870 1095 99 / 07-2022 r1
2. Solder the wire leads from the bottom, make sure
the solder joints are cone-shaped and shiny.
True to the Music
REF QTY Description
PCB 1 BARE PCB
J1 1 XLR MALE JACK
J2-J3 2 TS ¼" JACK
T1 1 12:1 JT-DB-EPC TRANSFORMER
S1-S2 2 PUSH SWITCH
C1 1 0.01uf 100v 10%
C2 1 22uf 25v 20%
R1 1 51R 1/4w 1%
R2 1 1K8 1/4w 5%
R3 1 8K2 1/4w 5%
R4 1 15K 1/4w 5%
R5 1 6K8 1/4w 5%
Screw Lg 4 6-32 3/16"
Screw Sm 5 4-40 1/4"
Gn=Green, Br=Brown, Gd=Gold, Gy=Grey, Rd=Red, Bk=Black, Bl=Blue, Or=Orange
Tools Required
Hex Driver for 3/16" screws (Included)
Hex Driver for 1/4" screws (Included)
Side cutters
Nutdriver 7/16"
Soldering iron 25-40 watt and solder
PCB Layout
J2
T1
R5
S2
C2
R2
R3
R4
J3
3. Trim excess wire leads as close
as possible to the solder joint.
www.radialeng.com
Color Code
Gn, Br, Br, Gd, Br
Br, Gy, Rd, Gd
Gy, Rd, Rd, Gd
Br, Gn, Or, Gd
Bl, Gy, Rd, Gd
S1
R1
C1
J1