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identify resistor value in circuit board Arc Welder
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Topic: identify resistor value in circuit board Arc Welder (Read 372 times)
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ferrisd65
Newbie
Posts: 4
Country:
identify resistor value in circuit board Arc Welder
«
on:
July 05, 2023, 10:17:03 pm »
BP Raptor 2001 BP00880
Arc Welder problem (no display, no power light)
Resistor Identity
Circuit Board 1/2W5R (See Picture)
https://www.digikey.com/en/resources/conversion-calculators/conversion-calculator-resistor-color-code
Brown
Grey
Black
Brown
Green
= 1.8k ohm +/- 0.5 %
Or
Green
Brown
Black
Grey
Brown
= 51G ohm +/- 1%
the resistor measures "open Loop" with a multimeter
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Andy Watson
Super Contributor
Posts: 2130
Re: identify resistor value in circuit board Arc Welder
«
Reply #1 on:
July 05, 2023, 11:34:32 pm »
As it says on the PCB 1/2W5R It is a 1/2 watt 5 ohm resistor (actually 5.1\$\Omega\$.)
Green = 5
Brown = 1
Black = 0
SILVER = x 0.01
Brown = 1% tolerance.
So 510 x 0.01 = 5.1\$\Omega\$
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