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11.M171-PWM Power control 9 - 28 V/DC, max. 10 A
12.M149N-Solar Charging Controller 12 V/DC, 10 A / 20 A
13.M103N-Master/Slave switch 230 V/ AC (400 V/AC)
14.M197-Twilight Switch 12 - 28 V/DC
15.M148-24-Battery Guard for 12 or 24 V/DC
16.M175-Animal Repeller Ultrasonic High Performance
17.M015N-DC/DC Converter, adjustable
18.M172N-Bicycle Power Charge Controller USB
19.M113A-Time switch 12 - 15 V/DC
20.M032S-Universal Amplifier 12 W "Plug & Play"
21.M122-Twilight switch 12 V/DC
22.M195-PWM Power control 9 - 28 V/DC, max. 20 A
23.Z100-Marten Repellent Spray
24.M094N-Marten repeller
25.M229-Marten Defence for Motor Vehicles, battery-operated with positive-negative contact plates
26.M158-Water Switch 9 - 12 V/DC
27.M062-Mini-Fence-High-Voltage Generator
28.M168-Overvoltage Protection 12 V/DC
29.FG025-Pasture Fence Device - High-Voltage Device for Electric Fences
30.M071N-Ultrasonic vermin repeller
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Soldering

Soldering course - page 14

Picture of a cold soldering joint and a poor connection

In this picture you may see a "cold soldering joint" (black circle) and a poor connection between wire and land (white circle).

REASON: The solder was heated too long. Therefore the flux filling of the solder vaporized and the solder cannot connect with the land.

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soldering presentation shortform

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