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2 OHMITE VITREOUS ENAMELED RESISTORS L100J250 WATT 100 250 OHM NEW $21.00 |
OHMITE RESISTORS 25 OHM N0 1358 USED $35.00 |
RESISTOR MOUNT HDWR THRU BOLT 175WATT OHMITE 7PA1060 $7.25 |

NIB ohmite resistor 40 watt 100 ohm $15.00 |
NIB OHMITE 1362 RESISTOR 225 WATT 1000 OHM $29.95 |
Ohmite Enamel Resistor 270 225P 46 25 ohms $29.99 |

Ohmite Wireround Resistor 100 Ohms 274A $154.99 |
9 Ohmite B20J2K0 Resistors 20 Watt 2000 Ohms $35.00 |
Ohmite Enamel Resistor 270 225P 46 10 Ohms $29.99 |

OHMITE 75 OHMS WIREWOUND RESISTOR L100J75R POWER 75OHM 100W 5 RESISTANCE NEW $6.94 |
20 Ohmite 15FR100E 1 Ohms 1 Current Sense Resistors $24.99 |
Ohmite Dividohm Resistors Various Ratings Group of 10 $18.00 |

OHMITE 605HR030E RESISTOR CUR SENSE 500MW 0030HM 3 LOT OF 36 NIB $19.99 |
OHMITE PFE5K1R00E Wirewound Resistors Chassis Mount 1 Ohm 1089 WATTS 2 PCS $100.00 |
OHMITE C300K20R 20OHM 300V AC RESISTOR D258787 $75.00 |

OHMITE 42J100 RESISTOR 100 0HMS 2 WATTS NNB $1.45 |
Ohmite 127 101 423 Resistor Assembly 127101423 270 100M 40 3K500J 3000 3000 Ohm $21.00 |
OHMITE 0579 DIVIDOHM ADJ WIREWOUND RESISTOR 75K OHM 7500 OHMS 50W W BRKT NNB $13.97 |

OHMITE 0580B DIVIDOHM ADJ WIREWOUND RESISTOR 9K OHM 9000 OHMS 50W W BRKT NIB $14.97 |
OHMITE 0580B DIVIDOHM ADJ WIREWOUND RESISTOR 9K OHM 9000 OHMS 50W W BRKT NNB $13.97 |
OHMITE 0580B DIVIDOHM ADJ WIREWOUND RESISTOR 9K OHM 9000 OHMS 50W W BRKT $6.97 |

Ohmite 10K Ohm 3W 20AWG Passive Resistor 23J10KE $2.00 |
Pack of 10 Ohmite 85F3R32 Resistors 332 Ohm 5W NEW $9.99 |
OHMITE D50K150 NEW RESISTOR D50K150 $10.00 |

OHMITE 43F1R5E RESISTOR WIREWOUND 150HM 3W 1 RESISTANCE 15HM LOT OF 18NIB $21.99 |
10x 16 Meg Ohm 2 Watt 5 Ohmite RC42GF165J Carbon Comp Resistor $8.59 |
OHMITE 45F25R Silicone Ceramic Resistor 25 Ohm 5W 1 AXIAL NEW 5 PKG $3.99 |

NIB OHMITE 1364 DIVIDOHM RESISTOR 225W 5000 OHMS $20.95 |
17 Ohmite Resistors 40FR10 10W 01 ohm Used WARRANTY $16.50 |
400 NOS 1 WATT ALLEN BRADLEY STACKPOLE OHMITE TRW CARBON COMP RESISTORS $135.00 |

OHMITE L50J50K RESISTOR NEW L50J50K $14.95 |
OHMITE L100J1R0 RESISTOR NEW $11.95 |
OHMITE RESISTOR L225J500 NEW L225J500 $13.95 |

OHMITE RESISTOR L100J2R0 NEW L100J2R0 $11.95 |
10 NOS OHMITE 2K 1 2 WATT 5 CARBON COMP RESISTORS FOR TUBE AMPLIFIER PARTS $8.00 |
Ohmite Ohm Ranger 3420 Resistor Substitution Box $45.00 |

OHMITE L100J250 VITROUS ENAMELED RESISTOR 250 0HMS 100 WATTS NIB $8.50 |
Lot of new OHMITE POWER RESISTORS INV2542 $9.99 |
NEW Ohmite Planar Resistor TAP600K10R 10 Ohms 600W Chassis Mount $17.95 |

OHMITE D225K100 RESISTOR WIREWOUND 100 OHM 225W 10 7215 $14.99 |
Ohmite Resistors 250 Ohm 100W P N L100J250 $8.50 |
OHMITE Resistor 50 OHM 12W FIXED LUG LEAD WIREWOUND 5 NEW 1 PKG $2.99 |

OHMITE Vitreous Enamel Conformal Axial WW Resistor 1Ohm 3W 5 NEW 5 PKG $3.99 |
OHMITE Vitreous Enamel Axial WW Resistor 1Ohm 3W 5 FORMED LEADS NEW 5 PKG $1.99 |
Ohmite 270 100M 40 Resistor 2500 OHMS 270100M40 $19.99 |

OHMITE 0608 VITREOUS ENAMELED WIREWOUND RESISTOR 750 OHMS 100W W BRKT $9.97 |
OHMITE 0962B DIVIDOHM ADJ WIREWOUND RESISTOR 15K OHM 1500 OHMS 100W W BRKT NNB $20.97 |
OHMITE 0774B DIVIDOHM ADJ ENAMELED WIREWOUND RESISTOR 200 OHMS 75W W BRKT $7.97 |

OHMITE 0608 VITREOUS ENAMELED WIREWOUND RESISTOR 750 OHMS 100W W BRKT NIB $19.97 |
50 OHMITE 43K 5 1 2W Carbon Composition Resistors $14.99 |
1 NEW OHMITE D225K4R0 LUG RESISTOR NIB $35.99 |

5 Ohm 3W 1 Wirewound Power Resistor Current Shunt Max245 Amp 1ea New $4.95 |
1 NEW OHMITE L225J5R0 LUG RESISTOR NIB $29.99 |
Ohmite 2522 Resistor 12 OHM 300 Watt $23.99 |

1 NEW OHMITE L225J25R LUG RESISTOR NIB $17.97 |
Lot of Ohmite B8J100 Wirewound Resistors Qty 15 $21.99 |
10 Ohmite 1 Wire Wound Resistors 402 Ohms 5 Watts $19.95 |

LOT OF 4 OHMITE 850F15R RE75G150R0 WIREWOUND RESISTORS $19.99 |
OHMITE 825F75R 75 OHMS 75OHMS 20W 1 POWER RESISTOR NOS $4.97 |
2pcs Ohmite Wirewound Power Resistor 27 Ohm 11 Watt 5 90J27R $6.25 |

4pcs Ohmite Wirewound Power Resistor 100 ohm 5 watt 5 95J100 100ohm 5watt $5.25 |
25 Ohmite OY220KE 22 Ohm 2W 10 Fixed Ceramic Resistors $9.99 |
Ohmite WFH160LR47KE 47 Ohm 160W Aluminum Housed Wirewound Power Resistor $26.99 |

Ohmite WFH160L2R0K 2 Ohm 160W Aluminum Housed Wirewound Power Resistor $26.99 |
Mil Spec Ohmite Resistors Part 54430 1 HE444 5005 0001 6300 Ohms $19.95 |
Ohmite Adjust Slide Power Resistor 45 Ohms 250 Watt Vitrus coating Its 10 $8.95 |

100 Pcs Carbon Comp Resistor Ohmite 560K Ohm 1 4 Watt 5 RC07GF564J $9.51 |
OHMITE L100J10Re RESISTOR 10 Ohm 100W 0828 5 $9.99 |
10 Pcs Ohmite 12 Meg Ohm 2 Watt 5 RC42GF126J Carbon Comp Resistor $7.56 |

OHMITE 150 OHM 225 WATT RESISTOR NOS 1 PC LOT $2.00 |
Box of 25 Ohmite Axial Wirewound Resistors 12W 30K Ohms B12J30K USA Seller New $34.95 |
Ohmite 95J10K Resistor 10K 5 Watt Lot of 3 NEW $44.99 |

5pcs 0499 OHM 3W 1 WIREWOUND RESISTOR OHMITE 83FR499 $4.00 |
10 pcs 40J5K0E OHMITE 5K Ohm 10W 5 AXIAL SILICONE CERAMIC WIREWOUND RESISTORS $9.99 |
Ohmite TUM5J 1KR Resistor Qty 5 $8.95 |

OHMITE IC9006A100G600 M 270 130P 46 5 VARIANCE 600OHM RESISTOR B279693 $20.00 |
OHMITE IC9006B100G500KA 1 1 4IN DIA 7IN 500OHM RESISTOR B279577 $25.00 |
OHMITE VITREOUS ENAMELED RESISTORS W BRACKETS 210 100M 40 100 W 8209 NEW $20.00 |

Ohmite C300K6R3 Vitreous Enameled Resistor 300 Watts 63 OHMS $14.95 |
Ohmite L500J100E Resistor 100 Ohm 500W $31.50 |
15 ohm Ohmite resistor came off a Wilson 200 amp welder $2.50 |

OHMITE 0963 DIVIDOHM ADJ WIREWOUND RESISTOR 25K OHMS 2500 OHMS 100W W BRKT $14.97 |
OHMITE 0963 DIVIDOHM ADJ WIREWOUND RESISTOR 25K OHMS 2500 OHMS 100W W BRKT NIB $21.97 |
OHMITE 0782B DIVIDOHM ADJ WIREWOUND RESISTOR 4K OHMS 4000 OHMS 75W W BRKT NIB $18.97 |

OHMITE 0782B DIVIDOHM ADJ WIREWOUND RESISTOR 4K OHMS 4000 OHMS 75W W BRKT NNB $17.97 |
OHMITE 0964 DIVIDOHM ADJ WIREWOUND RESISTOR 5K OHMS 5000 OHMS 100W W BRKT NIB $21.97 |
OHMITE 0964 DIVIDOHM ADJ WIREWOUND RESISTOR 5K OHMS 5000 OHMS 100W W BRKT NNB $20.97 |

20pack Ohmite 100k 10 2 Watt Metal Oxide Film Resistors NEW $4.99 |
Ohmite Powr rib Resistor PFE5K3R50 $20.00 |
OHMITE D25K3R0 Bracket Mount Resistor 3 OHM Variable Center Tap 25 WATT $6.00 |

OHMITE 0783C DIVIDOHM ADJ WIREWOUND RESISTOR 7K OHMS 7000 OHMS 75W W BRKT NIB $18.97 |
OHMITE 0783C DIVIDOHM ADJ WIREWOUND RESISTOR 7K OHMS 7000 OHMS 75W W BRKT NNB $17.97 |
OHMITE 0783C DIVIDOHM ADJ WIREWOUND RESISTOR 7K OHMS 7000 OHMS 75W W BRKT $11.97 |

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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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