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1 Ohm 225W 5 Power Resistor Ohmite L225J1R0E New In Box Normally 33 $19.95 |
1500 Ohm 225W 5 Power Resistor Ohmite L225J1K5E New In Box Normally 21 $9.95 |
New Ohmite Resistor 0600C 100W 1 Ohm 270 100M 40 $18.75 |

94pcs OHMITE 45F1K0 Wirewound Resistors Through Hole 5watt 1K 1 Axial $38.00 |
Ohmite Powr Rib Resistor PFE5K1R60 16 OHMS $76.00 |
NEW OHMITE D50K2K5 2500OHM 50W RESISTOR D482538 $5.00 |

Ohmite Tubular Power Resistor 2000 Ohm 225W $12.95 |
Lot of 3 Ohmite Milwaukee Resistors 1 Ohm 600 1000 25W $8.49 |
Vintage NOS Ohmite 0383 Vitreous Enamel Resistor 25 Watts 6000 Ohms 0064 amps $9.99 |

D175K1K0E OHMITE CHASSIS MOUNT WIREWOUND RESISTOR NEW IN BOX $19.99 |
Ohmite 825FR25E Resistor O25 Ohms 1 25 Watt Aluminum Case Chassis Mount New $4.95 |
OHMITE OY103K 10K OHM RESISTOR 2 WATT PACK OF 20 $15.95 |

OHMITE RESISTOR 5 OHMS NO 0400A $13.30 |
Ohmite Lug Resistor C300K12R $15.30 |
OHMITE 2H48F 125 OHM RESISTOR Lot of 12 $32.00 |

Ohmite L225J100 225W 100Ohm 5 Tolerance Vitreous Enameled Resistor $8.74 |
OHMITE 100W 7500 OHMS VITREOUS ENAMEL POWER RESISTOR L100J7K5 NEW $14.99 |
Ohmite Resistor LN100J5R0 100 Watts Used WARRANTY $5.00 |

Ohmite L225J250 225W 250Ohm Vitreous Enameled Resistor $16.24 |
NEW OHMITE RV4LAYSA102A INDUSTRIAL POTENTIOMETER 1K OHM 2W RESISTOR B478874 $6.00 |
OHMITE Power Resistor TAP600K500 D4818E $100.00 |

OHMITE 08X 2 72G 52630 POWER RIB 11 OHM RESISTOR $29.99 |
OHMITE 270225 46 5K OHMS RESISTOR $18.50 |
OHMITE L50J10R VITREOUS ENAMELED RESISTOR NEW IN BOX $14.00 |

Ohmite Dividohm 0567 200 OHMS 50WATT Adjustable Resistor 6 Each New Surplus $39.99 |
ONE NEW OHMITE D100K50R 100 WATT RESISTOR $12.75 |
NNB OHMITE RESISTOR D175K500 500OHM 175 WATT LOT OF 2 $13.99 |

OHMITE D225K10K RESISTOR NEW IN A BOX $25.00 |
OHMITE 0574 RESISTOR NEW IN A BOX $10.00 |
OHMITE ZWS50FST WIREWOUND RESISTOR 16OHM 50W 50 PCS $200.00 |

OHMITE RESISTOR D225K10R NEW IN BOX $35.00 |
OHMITE D100K 1R0 0956A RESISTOR 100WATTS 1 OHMS NEW IN A BOX $22.00 |
LOT OF 2 OHMITE RESISTOR D25K25K NEW IN ORIGINAL PACKAGE $16.00 |

OHMITE E300K1R0 RESISTOR NEW IN A BOX $30.00 |
OHMITE L50J2K0 RESISTOR 50WATTS 2K OHMS NEW IN A BOX $10.00 |
Ohmite L100J10R Resistor 10 ohm 100 Watt $9.99 |

Ohmite 45J39R WIREWOUND RESISTOR 39 Ohm 5W 5 AXIAL NEW 5 PKG $3.29 |
Ml Spec Ohmite Variable Resistor RP152FK100KK M22 05 00092FK 10 Ohm 224 Amp $20.97 |
OHMITE TGHLVR500JE Resistor Thick Film Lot of 6 $125.00 |

Ohmite Little Devils Resistors Cabinet With Hundreds of Various Resistors $55.99 |
OHMITE L50J1R0 1 OHMS 50W RESISTOR NEW IN A BOX $10.00 |
OHMITE RESISTOR D225K50R USED $11.00 |

OHMITE D225K250 225W 250 OHMS LUG RESISTOR NEW IN A BOX $18.00 |
OHMITE D100K500 RESISTOR 100WATTS 500 OHMS NEW IN A BOX $10.00 |
OHMITE 0200J 25W 1OHMS RESISTOR NEW IN A BOX $10.00 |

OHMITE L12J33R RESISTOR 12WATTS 33 OHMS NEW IN A BOX $8.00 |
OHMITE L225J50R RESISTOR NEW IN A BOX $15.00 |
OHMITE RESISTOR D25K1K25 NEW IN ORIGINAL PACKAGE $10.00 |

OHMITE D100K100K RESISTOR 100WATTS 100K OHMS NEW IN A BOX $16.00 |
NEW OHMITE 1360 RESISTOR $20.00 |
OHMITE RESISTOR ELECTRICAL 25W WATT 4000 OHMS LOT OF 1 $6.99 |

OHMITE 270 175P46 RESISTOR 750 OHMS NEW IN A BOX $40.00 |
LOT OF 2 OHMITE RESISTOR D50K750 NEW IN BOX $24.00 |
OHMITE L50J200KE RESISTOR NEW IN A BOX $13.00 |

LOT OF 3 OHMITE RESISTOR L50J25RNEW IN BOX $45.00 |
OHMITE D175K100 RESISTOR 175WATTS 100 OHMS NEW IN A BOX $28.00 |
OHMITE 0413 L50J8K0 RESISTOR 50WATTS 8K OHMS NEW IN A BOX $10.00 |

OHMITE 0415 210 50K 40 RESISTOR 50WATTS 12K OMHS NEW IN A BOX $10.00 |
OHMITE D100K10K RESISTOR 100WATTS 10K OHMS NEW IN A BOX $18.00 |
OHMITE PFE5KR670 RESISTOR NEW OUT OF BOX $75.00 |

OHMITE 0607 270 100M 40 RESISTOR NEW IN A BOX $12.00 |
OHMITE 0207 RESISTOR 25W 2000 OHMS NEW IN A BOX $8.00 |
LOT OF 20 OHMITE 1034 RESISTOR NEW IN BOX $140.00 |

LOT OF 34 OHMITE 0207 RESISTOR NEW IN BOX $238.00 |
LOT OF 50 OHMITE RC07GF363J RESISTORS ON TALLY TAPE NEW IN FACTORY BAG $30.00 |
OHMITE L100J100 RESISTOR 100WATTS 100OHMS NEW IN A BOX $25.00 |

OHMITE L25J200 RESISTOR ORIGINAL PACKAGE $10.00 |
LOT OF 7 OHMITE RESISTOR D50K2K0 NEW IN BOX $84.00 |
OHMITE D50K100 RESISTOR 50WATTS 100 OHMS NEW IN A BOX $18.00 |

OHMITE 0406 RESISTOR 50WATTS 1500 OHMSNEW IN A BOX $8.00 |
OHMITE D225K5R0 LUG RESISTOR 225WATTS 5 OHM NEW IN A BOX $30.00 |
OHMITE 0564 210 50K 40 RESISTOR 50WATTS 75 OHMS NEW IN A BOX $10.00 |

OHMITE L50J75R RESISTOR 50WATTS 75 OHMS NEW IN A BOX $10.00 |
OHMITE D100K5K0 RESISTOR 100WATTS 5K OHMS NEW IN A BOX $15.00 |
LOT OF 25 OHMITE 0E10G5 RESISTOR NEW IN A BOX $125.00 |

NOS Ohmite Dividohm Resistor 50 ohms 5 Watts $9.99 |
NOS Ohmite Dividohm Resistor 10 ohms 25 Watts $19.99 |
Ohmite 3 ohm Power Resistor 6 by 3 $19.99 |

NOS Ohmite Resistor 1000 ohms 25 Watts $19.99 |
NOS Ohmite Resistor 50000 ohms 25 Watts $19.99 |
22 K carbon composition 1 2 watt resistors nos 20 pcs $6.23 |

NOS Ohmite Dividohm Resistor 60k ohms 50 Watts $19.99 |
NOS Ohmite Dividohm Resistor 2000 ohms 25 Watts 0111 Amps $19.99 |
OHMITE 0567 210 50K 40 RESISTOR 50WATTS 200 OHMS NEW IN A BOX $10.00 |

OHMITE D50K1K5 RESISTOR 50WATTS 1500 OHMS NEW IN A BOX $18.00 |
OHMITE L50J5K0 RESISTOR 50WATTS NEW IN A BOX $15.00 |
OHMITE 0401 L50J250 RESISTOR 50WATTS 250 OHMS NEW IN A BOX $11.00 |

OHMITE 0965 210 100M 40 RESISTOR 100WATTS 10K OHMS NEW IN A BOX $11.00 |
OHMITE L50J15K RESISTOR 50WATTS 15K OHMS NEW IN A BOX $10.00 |
LOT OF 2 OHMITE RESISTOR D25K2K5 NEW IN ORIGINAL PACKAGE $14.00 |

OHMITE L50J150 RESISTOR 50W 150 OHMS NEW IN A BOX $10.00 |
LOT OF 18 OHMITE B20J250 WIREWOUND RESISTOR 20WATTS 250 OHMS NEW IN A BOX $72.00 |
Ohmite 75000 Ohm 100 Watt Resistor Stock No 0624 Vitreous Enamel NOS $2.99 |

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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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