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Simple Servo Tester

Basic test gear for modelers

Simple Servo Tester
When a servo motor starts to malfunction there is generally not much to see from the outside to help diagnose the problem. That’s why every modeler’s toolbox should have one of these handy units!
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Gerber file

CAM/CAD data for the PCB referred to in this article is available as a Gerber file. Elektor GREEN and GOLD members can exclusively download these files for free as part of their membership. Gerber files allow a PCB to be produced on an appropriate device available locally, or through an online PCB manufacturing service.

Elektor recommends its business partner Eurocircuits as the company of choice for its own prototypes and volume production in selected cases.

Download the BOM list
The BOM (Bill of Materials) is the technically exhaustive listing of parts and other hardware items used to produce the working and tested prototype of any Elektor Labs project. The BOM file contains deeper information than the Component List published for the same project in Elektor Magazine. If required the BOM gets updated directly by our lab engineers. As a reader, you can download the list here.
Want to learn more about our BOM list? Read the BOM list article for extra information.
Component list
R1 = 220kOhm
R2 = 1kOhm
R3 = 10kOhm
P1 = 50kOhm linear potentiometer
C1 = 10µF 16V, 7.5mm pitch
C2,C4 = 47nF
C3 = 100nF
IC1 = NE556CN
K1 = 2-pin pinheader, 0.1'' pitch
K2 = 3-pin pinheader, 0.1'' pitch
PCB 120474-1
DesignSpark-project files can be downloaded from [1].

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