Jameco Electronics 2176106 Instructions Manual

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Analog Guitar Overdrive Pedal
PART NO. 2176106
A solid-state overdrive/distortion effects pedal for guitar and other musical instruments.
components (included) this pedal can be "tweaked" by you, the builder, during assembly to deliver tones for blues or rock. Or try your
own parts to build an effect that is uniquely your own!
Features:
True bypass switching: won't alter your tone when switched out
LED indicator
Die-Cast metal case for durability
Knobs control Drive and Level independently
Builder-customizable design for musical flexibility
All parts, circuit board, drill templates, and troubleshooting guides included.
Time Required: 3-4 hours depending on experience
Experience Level: Intermediate
Required tools and parts:
Soldering Iron and Solder
Needle-Nose Pliers or Hemostat
Wire Cutter (side cutters)
Wire Stripper
Drill bits and drill for drilling metal case (drill press recommended)
Voltmeter (optional, but recommended for troubleshooting)
Bill of Materials:
Qty
Jameco SKU
1
11965
1
251125
2
286302
1
281738
1
281746
1
333973
1
23077
1
151116
1
330431
1
15190
1
15405
1
15229
2
691585
1
216427
4
126981
2
264990
1
526299
1
691024
1
691489
Component Name
Aluminum Case
RC4558 Dual Op-Amp, 8 Pin DIP
100K Pot, Linear
1/4" Audio Jack (Mono)
1/4" Audio Jack (Stereo)
Unicolor LED
LED Holder
0.1uF 25V Disk Capacitor
1uF 25V Electrolytic, Radial Pkg
0.001uF 50V Ceramic Disk Cap
22pF 50V Ceramic Cap
0.01uF 50V Ceramic Disk Cap
1.0 Meg Ohm Carbon Film 1/4Watt
9V Battery Holder
Rubber Feet
Knobs
8-Pin DIP Socket
4.7K Ohm Resistor, Carbon Film, 1/4 Watt
390K Ohm Resistor, Carbon Film, 1/4 Watt
By including or leaving out optional

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Summary of Contents for Jameco Electronics 2176106

  • Page 1 Analog Guitar Overdrive Pedal PART NO. 2176106 A solid-state overdrive/distortion effects pedal for guitar and other musical instruments. By including or leaving out optional components (included) this pedal can be "tweaked" by you, the builder, during assembly to deliver tones for blues or rock. Or try your...
  • Page 2 36038 1N4148 Silicon Diode 690865 1K Ohm Resistor, Carbon Film, 1/4 Watt 151590 DC Power Jack 35991 1N4004 Silicon Diode 2181415 Stomp Switch, 3PDT Step 1 - First Things First 1) If you're new to this kind of thing, familiarize yourself with the key. 2) Check to see if you received all your parts.
  • Page 3 Step 4 - Assemble Circuit Insert components in circuit board, referring to the parts list and circuit board labeling. All soldering is to be done on the copper side of the circuit board. Allow the soldering iron to warm up before starting. Once heated, proceed with soldering to the circuit board. Joints should be shiny and isolated (don't bridge connections).
  • Page 4 Step 6 - Point to point wiring Follow the provided diagram carefully. Be sure to cut appropriate wire lengths (not too long or short). Color coding your wires is helpful, but not necessary. The color of the wire does not affect the circuit in any manner. Strip about 1/4-1/2 inch of the insulating layer off each end of the wires so that the metal is exposed.
  • Page 5 Step 8 - Troubleshooting 1) Power up the board with the IC (op amp) not in the socket. Confirm that the LED lights when the cable is inserted into the input jack. This "activates" the circuit by creating a metal to metal connection that functions as a switch. If the LED doesn't light, click the stomp switch.
  • Page 6 Step 9 - Circuit Explanation So what is actually going on in this circuit? Our guitar is supplying us a sinusoidal signal, the harder you strum, the further the strings displace from their resting position, and the amplitude of the sine wave increases. This pure sine wave is what musicians label "clean", the pure signal not altered in any way (except by the limited controls on the guitar itself).

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