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Resistor Tru Ohm AR75 100 Ohm adjustable vitreous enamel wire wound $15.75 |
Resistor Tru Ohm 15 Ohm fixed vitreous enamel wire wound 85 inches by 1 inch $15.75 |
High Watt Wire Wound Ceramic Sandbar Resistors NEW $4.85 |

Resistor Ohmite 3000 Ohm 100 Watt Fixed 0613 vitreous enamel wire wound $12.00 |
Ohmite Wirewound Resistor P N D12K400E $7.61 |
Ohmite B5J10RE 10 Ohms Resistor Pack of 5 $12.75 |

25 Ohmite 330 Ohms 5 1W Carbon Comp Resistors $26.99 |
L175J100E Ohmite ResistorWirewound100 OhmsPwr Rtg 175 WTol 5Lug 1 PER $20.00 |
D50K150E Ohmite RESISTOR POWER ADJ 150 OHM 50W 1 Per $12.00 |

F55J1KOE Ohmite RESISTOR POWER 1KOHM 55W 5 1 PER $10.00 |
NEW LOT OF 2 OHMITE 23J7K5 CERAMIC WIREWOUND RESISTORS $5.00 |
WFH90L2K7J Ohmite RESISTOR CHASIS MOUNT 27K OHM 5 90W 1 PER $20.00 |

WFH90L10KK Ohmite Wirewound Resistors 90watt 100ohm 5 High Power 1 PER $20.00 |
WH90L1K50J Ohmite RESISTOR CHASIS MOUNT 1500 OHM 5 90W 1 PER $38.00 |
Ohmite L50J25R 50W Resistor $24.99 |

OHMITE DIVIDOHM 2500 OHMS 225W ENAMELED RESISTOR D225K2K5 NNB $24.99 |
OHMITE VITREOUS ENAMELED RESISTORS L100J100 100 WATT 100 OHM NEW $14.00 |
NIB LOT OF 3 OHMITE 1362 225W 1K OHM RESISTOR CN O BOTTOM $60.00 |

OHMITE 200K OHMS NOS PRECISION WIREWOUND NON INDUCTIVE RESISTOR $5.47 |
Ohmite C300 10RE Lug Resistor 10 10 Ohms New $29.99 |
10 Ohmite Resistor 39K Ohm 1 Watt 10 Carbon Comp RC32GF392K $6.26 |

LOT OF 6 Ohmite L50J10R 50W 10 Ohms Resistor No 0400B FREE SHIPPING $49.95 |
vintage ohmite 100 watt 100 ohm resistor model k $34.95 |
LOT OF 5 Ohmite L50J25R 50W 25 Ohms Resistor No 0400B FREE SHIPPING $39.95 |

Ohmite D25K150 Resistor Dividohm 210 Series NOS $5.99 |
10 Ohmite TUW10J3R0 Wire Wound Resistor 3 Ohm 10w 5 750v Lot of 10 $11.97 |
5 pcs TA310PA100RJ Ohmite 10 Watt 100 Ohm 5 High Power Thick Film Resistor $16.25 |

10 pcs TA310PA15K0J Ohmite 10 Watt 15K Ohm 5 High PowerThick Film Resistor $16.25 |
5 pcs TA310PA250RJ Ohmite 10 Watt 250 Ohm 5 High Power Thick Film Resistor $16.25 |
5 pcs TA310PA30R0J Ohmite 10 Watt 30 Ohm 5 High Power Thick Film Resistor $16.25 |

5 pcs TA810PA160RJ Ohmite 10 Watt 160 Ohm 5 High Power Thick Film Resistor $16.25 |
5 pcs TA810PA1K00J Ohmite 10 Watt 1K Ohm 5 High Power Thick Film Resistor $16.25 |
3 pcs TA810PA1K50F Ohmite 10 Watt 15K Ohm 1 High PowerThick Film Resistor $23.75 |

5 pcs TA810PW100RJ Ohmite 10 Watt 100 Ohm 5 High Power Thick Film Resistor $16.25 |
5 pcs TA810PW24R0J Ohmite 10 Watt 24 Ohm 5 High Power Thick Film Resistor $16.25 |
5 pcs TA810PW33R0J Ohmite 10 Watt 33 Ohm 5 High Power Thick Film Resistor $16.25 |

5 pcs TA810PW3R90J Ohmite 10 Watt 39 Ohm 5 High Power Thick Film Resistor $16.25 |
5 pcs TA810PW510RJ Ohmite 10 Watt 510 Ohm 5 High Power Thick Film Resistor $16.25 |
5 pcs TA810PW5R60J Ohmite 10 Watt 56 Ohm 5 High Power Thick Film Resistor $23.75 |

Ohmite 1159 Resistor 175W 50 Ohm 210 175P 46 USED $18.99 |
Lot of 8 Ohmite 50W Wirewound Resistors 25 2K 2500 Ohm 270 50K 40 $34.99 |
Lot of 7 Ohmite Wirewound Resistors 250 40TE 528S 40R00J 9217 $34.99 |

Ohmite 0602 Resistor 100W 50 Ohm 270 100M 40 NEW $19.99 |
Ohmite 2607 Resistor 300W 04 Ohm NEW $10.99 |
Ohmite L100J2R0 100 Watt 2 Ohms Vitreous Enameled Resistor $7.99 |

AW120K Ohmite 25 Watt 12 Ohm 10 Ceramic Composition Resistor PulsEater $14.50 |
5 pcs B20J30R Ohmite 20 Watt 30 Ohm 5 Wirewound Vitreous Enamel Resistor $19.75 |
C400K50R Ohmite 400 Watt 50 Ohm 10 Wirewound Vitreous Enamel Resistor $235.00 |

AZ821K Ohmite 55 Watt 820 Ohm 10 Ceramic Composition Resistor PulsEater $22.50 |
5 pcs B5J75R Ohmite 5 Watt 75 Ohm 5 Wirewound Vitreous Enamel Resistor $19.75 |
AZ221K Ohmite 55 Watt 220 Ohm 10 Ceramic Composition Resistor PulsEater $22.50 |

C1000K10R Ohmite 1000 Watt 10 Ohm 10 Wirewound Vitreous Enamel Resistor $285.00 |
C375K20R Ohmite 375 Watt 20 Ohm 10 Wirewound Vitreous Enamel Resistor $165.00 |
C35KR08 Ohmite 35 Watt 008 Ohm 10 Wirewound Vitreous Enamel Resistor $14.75 |

5 pcs B8J450 Ohmite 8 Watt 450 Ohm 5 Wirewound Vitreous Enamel Resistor $19.75 |
5 pcs B8J900 Ohmite 8 Watt 900 Ohm 5 Wirewound Vitreous Enamel Resistor $19.75 |
5 pcs B5J3R0 Ohmite 5 Watt 3 Ohm 5 Wirewound Vitreous Enamel Resistor $19.75 |

5 pcs B12J600 Ohmite 12 Watt 600 Ohm 5 Wirewound Vitreous Enamel Resistor $19.75 |
C500K3R6 Ohmite 500 Watt 36 Ohm 10 Wirewound Vitreous Enamel Resistor $115.00 |
5 pcs B8J600 Ohmite 8 Watt 600 Ohm 5 Wirewound Vitreous Enamel Resistor $19.75 |

5 pcs B12J12K Ohmite 12 Watt 12K Ohm 5 Wirewound Vitreous Enamel Resistor $19.75 |
5 pcs B5J200 Ohmite 5 Watt 200 Ohm 5 Wirewound Vitreous Enamel Resistor $19.75 |
5 pcs B8J2K0 Ohmite 8 Watt 2K Ohm 5 Wirewound Vitreous Enamel Resistor $19.75 |

C750K4R1 Ohmite 750 Watt 41 Ohm 10 Wirewound Vitreous Enamel Resistor $115.00 |
5 pcsB20J10K2 Ohmite 20 Watt 102K Ohm 5 WirewoundVitreous EnamelResistor $19.75 |
5 pcs B8J1K25 Ohmite 8 Watt 125K Ohm 5 WirewoundVitreous EnamelResistor $19.75 |

AY390K Ohmite 45 Watt 39 Ohm 10 Ceramic Composition Resistor PulsEater $14.50 |
5 pcs B20J650 Ohmite 20 Watt 650 Ohm 5 Wirewound Vitreous Enamel Resistor $19.75 |
C1500K5R0 Ohmite 1500 Watt 5 Ohm 10 Wirewound Vitreous Enamel Resistor $165.00 |

AW560K Ohmite 25 Watt 56 Ohm 10 Ceramic Composition Resistor PulsEater $14.50 |
C35KR15 Ohmite 35 Watt 015 Ohm 10 Wirewound Vitreous Enamel Resistor $23.75 |
C1500K23R Ohmite 1500 Watt 23 Ohm 10 Wirewound Vitreous Enamel Resistor $165.00 |

AX220K Ohmite 35 Watt 22 Ohm 10 Ceramic Composition Resistor PulsEater $14.50 |
C300K25R Ohmite 300 Watt 25 Ohm 10 Wirewound Vitreous Enamel Resistor $22.50 |
C35KR04 Ohmite 35 Watt 004 Ohm 10 Wirewound Vitreous Enamel Resistor $14.75 |

AZ331K Ohmite 55 Watt 330 Ohm 10 Ceramic Composition Resistor PulsEater $14.50 |
AX102K Ohmite 35 Watt 1K Ohm 10 Ceramic Composition Resistor PulsEater $14.50 |
AX330K Ohmite 35 Watt 33 Ohm 10 Ceramic Composition Resistor PulsEater $14.50 |

5 pcs B12J900 Ohmite 12 Watt 900 Ohm 5 Wirewound Vitreous Enamel Resistor $19.75 |
10 Ohmite Resistor 91 Ohm 2 Watt 5 Carbon Comp RC42GF910J $9.09 |
OHMITE P25J40RE RESISTOR 40 OHM 5 WATT 5 AXIAL $8.50 |

10 Ohmite Slim Mox 108 2 Meg 25W 10 Thick Film Planar Resistors $19.99 |
Lot of 10 Ohmite L50J1R0 Fixed Tubular Bracket Mount Resistors 1 Ohm 50W $36.99 |
Variable Resistor Ohmite 62204 300 300 ohm $25.00 |

Ohmite WFH160L2R0K 2 Ohm 160W Aluminum Housed Wirewound Power Resistor $26.99 |
2 Dale 1K 1000 Ohm 50W Ceramic Power Resistor w mounting brackets HL 50 06Z $10.00 |
OHMITE MOX91022505FTE 25M 25MEG OHM 38W 3W 1 PRECISION RESISTOR BOX55 $5.75 |

54 Carbon Composition 68 Meg Ohm 10 1 Watt Vintage Resistors LK $19.99 |
31 Carbon Composition 560K Ohm 10 1 Watt Vintage Resistors LK $9.99 |
22 Carbon Composition 68 Ohm 10 1 Watt Vintage Resistors LK $5.99 |

27 Carbon Composition 18K Ohm 10 1 Watt Vintage Resistors LK $6.99 |
34 Carbon Composition 82K Ohm 10 1 Watt Vintage Resistors LK $9.99 |
46 Carbon Composition 390 K Ohm 10 1 Watt Vintage Resistors LK $19.99 |

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**680V over OHMITE 100 ohm 225W resistor**

## The Test Methods and Experiences of 8 Resistors

1. Fixed Resistor Testing.

A. Connect the two probes(regardless of positive and negative) to the pins of resistors respecially, the actual resistance value will be measured. In order to improve the measurement accuracy, the measured resistance should be based on the size of the nominal value to select the range. As the scale of the nonlinear Ohm's block, dividing it in the middle of a more refined, pointer indicates the value should be possible to scale fell on the middle position, that is the start of full scale of 20% to 80% within the arc to make the measurements more accurate. According to a different level of resistance error. Reading between the nominal resistance were allowed ± 5%, ± 10% or ± 20% error. If we do not match, beyond the error range, then the resistance value change the value.

B. Note: When you are testing, particularly in the resistance measured over tens of kΩ resistor, hands do not touch the probe and resistance of the conductive part; be detected in the welding of the resistance from the circuit down, at least open a welding head, in order to avoid circuit The impact on other components of the test, resulting in measurement residual; the resistance value of color ring resistor can be able to determined by color ring marks, but is best to test the actual resistance using a multimeter.

2. Cement Resistance Testing.

Detection of resistance of cement and precautions to ordinary fixed resistor with the same test.

3. Fuse Resistors Test.

In the circuit, when the fuse resistor fuse open, you can make judgments based on experience: If it is found fuse resistors or charred black surface, it can be concluded that the overload rating of the current through it many times over due; If the surface without any trace of the open, it indicates that the current flow is equal to or just greater than the rated fuse value of sales. For the surface without any trace of the fuse resistor to judge good or bad, can make use of the multimeter to measure the R × 1 block, to ensure accurate measurement, it should fuse resistors from the circuit on one end of the next weld. If the measured resistance is infinite, then the fuse has failed open circuit resistor, if the measured resistance falls far short of the nominal value, that value of resistance change, we should not be used. In the maintenance of practice found that a small number of resistors in the circuit fuse is short breakdown phenomenon, attention should also be detected.

4. Potentiometer Detection.

Check the potentiometer, the first to turn the rotating handle, turn handle to see whether the smooth rotation, the switch is flexible, switch-pass, short "clicks" is crisp, and listen to the potentiometer and the resistance of the contact point within the body of friction sound, if any "imperfections" sound, indicating poor quality. Test with a multimeter, the first based on the size of the measured resistance of the potentiometer, the appropriate choice of a good multimeter resistance gear, and then according to the following method for testing.

A. Measured with a multimeter's ohm block "1" "2" at both ends, the reading should be nominal for the potentiometer resistance, such as the meter pointer does not move a lot of difference, or resistance, it indicates that the potentiometer is damaged.

B. Detect whether the activities of the potentiometer arm and the resistance of film contact is good or not. The ohm meter test block with "1" "2" ("2" "3") ends of the potentiometer shaft counterclockwise rotation to close the "off" position, when the resistance value as possible. Handle clockwise rotation axis and then slowly, the resistance value should be increased gradually, the pointer in the header should be a smooth move. When the spin axis of the handle to the extreme position of "3", the resistance should be close to the nominal value of the potentiometer. If the multimeter pointer handle potentiometer shaft rotation in the process of jumps, indicating active fault contacts are bad.

5. Positive Temperature Coefficient Thermistor (PTC) Detection.

When detecting, with a multimeter R × 1 block, concrete and two-step operation:

A. Room Temperature Testing (room temperature close to 25 ℃): the two probes touch the two pins PTC thermistors measure the actual resistance, and with the relative ratio of the nominal resistance, the difference between the two is the normal within the ± 2Ω. If the nominal resistance and the resistance of the actual difference is too large, then the performance is bad or damaged.

B. Heating Test: at room temperature, on the basis of the tests are normal, then a second step tests - heat detection, to a heat source (such as electric iron) near the PTC thermistor to its heating, while monitoring the resistance with a multimeter if the value increases with increasing temperature, and if so, that the normal thermal resistance, if resistance did not change, indicating that its performance became inferior and can not be used. Careful not to heat with the PTC thermistor by too close or direct contact with the thermistor in order to prevent their ruined.

6. Negative Temperature Coefficient Thermistor (NTC) Testing.

(1) Measured nominal resistance value Rt NTC thermistor with a multimeter measuring methods and measuring the same way as ordinary fixed resistor, which according to the nominal resistance of NTC thermistor select the appropriate power block can be directly measured actual Rt value. But NTC thermistor is sensitive to temperature, so the test should note the following:

A. Rt is the manufacturer at an ambient temperature measured at 25 ℃, so the Rt measured with a multimeter when the ambient temperature should also be close to 25 ℃, in order to ensure the credibility of the test.

B. Measurement of power shall not exceed the specified value, so that the current measurement error caused by thermal effects.

C. It is operating correctly. Test, and hold your hands to prevent the body temperature of the test impact.

(2) Estimate the temperature coefficient "at"

First measured the value of t1 resistance Rt1 at room temperature, then electric soldering iron for heat, close to the thermistor Rt, measure the resistance RT2, also measured with a thermometer at this time the surface of the thermistor RT and then calculated the average temperature t2.

7. Varistor Testing.

R × 1k with a multimeter to measure the varistor block between the two pins is, the reverse insulation resistance, are infinite, otherwise, that leakage current. If the measured resistance is very small, indicating varistor is damaged, can not be used.

8. Photosensitive Resistance Testing.

A. With a black piece of paper to cover the window light sensitive resistor, when the multimeter pointer remained fixed, the resistance approaches infinity. This value shows the bigger the better performance of photosensitive resistance. If this value is very small or close to zero, indicating photoresistor has burn damage, can not continue to use.

B. Will be a light transmittance of the window aligned photosensitive resistance, when the multimeter pointer swing should be more substantial, more resistance was significantly reduced. The smaller this value the better the performance that photosensitive resistance. If this value is large or even infinite, indicating that the resistance of the internal open-photosensitive damage, can no longer continue.

C. The photosensitive resistor light window light rays aligned with the black pieces of paper on top of the window shade photoresistors shaking, it stopped by the light, this time with the black pieces of paper multimeter pointer should be shaking and side to side. If the meter pointer position does not always stop with the paper in a rock and swing, indicating resistance of the photosensitive photosensitive materials have been damaged.

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