Ohmite Resistors

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OHMITE 25 WATT RESISTOR L251500
OHMITE 25 WATT RESISTOR L251500
$2.99
quality
3 lot ohmite d225k25re 225w 25ohm wirewound resistors 10 1 2 long
3 lot ohmite d225k25re 225w 25ohm wirewound resistors 10 1 2 long
$39.69
quality
VINTAGE OHMITE RESISTOR LITTLE DEVIL BAKELITE CASE ORGANIZER STORAGE CABINET
VINTAGE OHMITE RESISTOR LITTLE DEVIL BAKELITE CASE ORGANIZER STORAGE CABINET
$42.46
quality
New Ohmite L25J1K0 1K Ohm 25 Watt Resistor NOS
New Ohmite L25J1K0 1K Ohm 25 Watt Resistor NOS
$6.95
quality
OHMITE 270 100M 40 270 175P 46 RESISTOR 25 OHMS 100W LOT OF 7GOOD
OHMITE 270 100M 40 270 175P 46 RESISTOR 25 OHMS 100W LOT OF 7GOOD
$29.99
quality
OHMITE 4842 11W8027 5000 OHM 11 W WIREWOUND RESISTOR
OHMITE 4842 11W8027 5000 OHM 11 W WIREWOUND RESISTOR
$2.95
quality
OHMITE 50 WATTS 15000 OHMS RESISTOR L50J15K NEW
OHMITE 50 WATTS 15000 OHMS RESISTOR L50J15K NEW
$9.50
quality
OHMITE NO 2204 50 OHM 100W NON INDUCTIVE RESISTOR P1122
OHMITE NO 2204 50 OHM 100W NON INDUCTIVE RESISTOR P1122
$11.99
quality
Mixed Lot of 2 Ohmite 2405 Resistor 175W 100  225W 50K  New
Mixed Lot of 2 Ohmite 2405 Resistor 175W 100 225W 50K New
$29.88
quality
Lot of 2 Ohmite 0913 Ceramic Power Resistor 225W 3K  New
Lot of 2 Ohmite 0913 Ceramic Power Resistor 225W 3K New
$29.88
quality
Ohmite L25J50R Resistor Power 50 OHM 25W Lot Of FOUR
Ohmite L25J50R Resistor Power 50 OHM 25W Lot Of FOUR
$22.00
quality
NEW OHMITE LOT OF 5 P N 51190024 059 RESISTOR
NEW OHMITE LOT OF 5 P N 51190024 059 RESISTOR
$9.99
quality
LOT 3 OHMITE IC900GA100L125AC M270 112N150 125OHM RESISTOR D518788
LOT 3 OHMITE IC900GA100L125AC M270 112N150 125OHM RESISTOR D518788
$10.46
quality
OHMITE WFH330L100JE WIREWOUND RESISTOR 100 OHM 330 W 5
OHMITE WFH330L100JE WIREWOUND RESISTOR 100 OHM 330 W 5
$29.00
quality
13 Ohmite Resistor Wirewound 27 Ohm 5 230W resistors WFH230L27RJE
13 Ohmite Resistor Wirewound 27 Ohm 5 230W resistors WFH230L27RJE
$50.00
quality
New Ohmite L225J5ROE 50Ohms 225W Wirewound Vitreous Enamel Power Resistor NIB
New Ohmite L225J5ROE 50Ohms 225W Wirewound Vitreous Enamel Power Resistor NIB
$20.00
quality
NIB OHMITE LUG RESISTOR C300K1R2
NIB OHMITE LUG RESISTOR C300K1R2
$13.99
quality
Ohmite 33 Ohm L12J3R3 Resistor
Ohmite 33 Ohm L12J3R3 Resistor
$8.00
quality
Ohmite L100J100 Power Resistor 100 Watt 100 Ohm New TB
Ohmite L100J100 Power Resistor 100 Watt 100 Ohm New TB
$11.95
quality
VTG ELECTRONICS LOT OF 12 CERAMIC RESISTORS OHMITE RCA ETC UNTESTED 162
VTG ELECTRONICS LOT OF 12 CERAMIC RESISTORS OHMITE RCA ETC UNTESTED 162
$4.99
quality
Ohmite L25J100 Resistor 100 Ohm Used
Ohmite L25J100 Resistor 100 Ohm Used
$7.00
quality
NEW Ohmite 825F200E 200 ohms 1 Resistor FREE SHIPPING
NEW Ohmite 825F200E 200 ohms 1 Resistor FREE SHIPPING
$5.99
quality
OHMITE 21025P 6 RESISTOR 4 OHMS
OHMITE 21025P 6 RESISTOR 4 OHMS
$24.99
quality
OHMITE C300K10R RESISTOR 300 WATTS 10 OHMS
OHMITE C300K10R RESISTOR 300 WATTS 10 OHMS
$29.99
quality
OHMITE FIXED RESISTOR 25W L25J7K5 7500 OHMS NEW
OHMITE FIXED RESISTOR 25W L25J7K5 7500 OHMS NEW
$5.00
quality
QTY 2 L25J150 OHMITE CHASSIS MOUNT WIREWOUND RESISTORS 150 Ohm 25W 5 LUG
QTY 2 L25J150 OHMITE CHASSIS MOUNT WIREWOUND RESISTORS 150 Ohm 25W 5 LUG
$9.99
quality
L25J15R OHMITE CHASSIS MOUNT WW RESISTORS 15 Ohm 25W 5 VITREOUS ENAMEL LUG
L25J15R OHMITE CHASSIS MOUNT WW RESISTORS 15 Ohm 25W 5 VITREOUS ENAMEL LUG
$6.99
quality
QTY 2 L50J2K0 OHMITE CHASSIS MOUNT WIREWOUND RESISTORS 2K Ohm 50W 5 NOS
QTY 2 L50J2K0 OHMITE CHASSIS MOUNT WIREWOUND RESISTORS 2K Ohm 50W 5 NOS
$9.99
quality
OHMITE 0400L VITREOUS ENAMELED RESISTOR 50W 3 OHMS L50J3R0 NIB
OHMITE 0400L VITREOUS ENAMELED RESISTOR 50W 3 OHMS L50J3R0 NIB
$9.98
quality
Ohmite Variable Power Resistor 1000 Ohm 50W D50K1K0 210 Series
Ohmite Variable Power Resistor 1000 Ohm 50W D50K1K0 210 Series
$8.00
quality
NEW 2Pk Ohmite M0917 RH 10 10W 2K ohms 1 Resistor FREE SHIPPING
NEW 2Pk Ohmite M0917 RH 10 10W 2K ohms 1 Resistor FREE SHIPPING
$8.99
quality
LOT OF 14  OHMITE 95J220 WIRE WOUND RESISTOR 220 OHM
LOT OF 14 OHMITE 95J220 WIRE WOUND RESISTOR 220 OHM
$18.00
quality
NEW IN BOX OHMITE 0568 50WATT 250 OHM RESISTOR
NEW IN BOX OHMITE 0568 50WATT 250 OHM RESISTOR
$9.99
quality
1 NOS Ohmite Fixed Resistor 061610K Ohm x 100 Watt w OUT Mounting Brackets
1 NOS Ohmite Fixed Resistor 061610K Ohm x 100 Watt w OUT Mounting Brackets
$19.16
quality
NEW OHMITE 0360 D25K1R0 25WATT 1 OHM RESISTOR
NEW OHMITE 0360 D25K1R0 25WATT 1 OHM RESISTOR
$10.50
quality
Ohmite D25K7R5 Resistor 25W 75 Ohm
Ohmite D25K7R5 Resistor 25W 75 Ohm
$36.97
quality
OHMITE D225K5K0 RESISTOR NEW IN BOX
OHMITE D225K5K0 RESISTOR NEW IN BOX
$15.00
quality
OHMITE D100K50R VITREOUS ENAMELED RESISTORS LOT OF 6 NEW OLD STOCK
OHMITE D100K50R VITREOUS ENAMELED RESISTORS LOT OF 6 NEW OLD STOCK
$30.07
quality
OHMITE D25K 3K5 3500 OHMS 25 W 8736 SILICON CERAMIC RESISTOR NIB
OHMITE D25K 3K5 3500 OHMS 25 W 8736 SILICON CERAMIC RESISTOR NIB
$18.97
quality
OHMITE D25K3K5 3500 OHMS 25W8837 VITREOUS ENAMEL RESISTOR NIB
OHMITE D25K3K5 3500 OHMS 25W8837 VITREOUS ENAMEL RESISTOR NIB
$9.97
quality
OHMITE43JR50 RESISTOR 05 OHMS 3W 5 SILICON CERAMIC WIREWOUND 3 WATT NNB
OHMITE43JR50 RESISTOR 05 OHMS 3W 5 SILICON CERAMIC WIREWOUND 3 WATT NNB
$1.07
quality
NEW OHMITE D100K1R0 100WATTS 1 OHM RESISTOR
NEW OHMITE D100K1R0 100WATTS 1 OHM RESISTOR
$15.80
quality
Vintage Ohmite Dividohm No1362 VITREOUS Enameled Resistor 1000 Ohms 200 Watts
Vintage Ohmite Dividohm No1362 VITREOUS Enameled Resistor 1000 Ohms 200 Watts
$7.99
quality
OHMITE CERAMIC RESISTORS 470N 100M 40 10R00J 9650 LOT OF 3
OHMITE CERAMIC RESISTORS 470N 100M 40 10R00J 9650 LOT OF 3
$7.00
quality
OHMITE Lug Resistor L225J100 225 watt 100 ohm
OHMITE Lug Resistor L225J100 225 watt 100 ohm
$17.99
quality
OHMITE RESISTOR  RW37V510 NSN 5905 00 835 7387 113W NOM RES51
OHMITE RESISTOR RW37V510 NSN 5905 00 835 7387 113W NOM RES51
$25.00
quality
NEW FACTORY SEALED OHMITE L25J3R0 RESISTOR
NEW FACTORY SEALED OHMITE L25J3R0 RESISTOR
$7.99
quality
OHMITE 0200J FIXED VITREOUS ENAMELED RESISTOR 25W 1 OHMS NIB
OHMITE 0200J FIXED VITREOUS ENAMELED RESISTOR 25W 1 OHMS NIB
$6.97
quality
Ohmite Wirewound Power Resistor 18 Ohm 115W P N 75072 18
Ohmite Wirewound Power Resistor 18 Ohm 115W P N 75072 18
$9.99
quality
Ohmite 1705 2 Ohm Resistor New
Ohmite 1705 2 Ohm Resistor New
$7.00
quality
Lot of 5 Ohmite Resistor B12J15RE 12W 15Ohm
Lot of 5 Ohmite Resistor B12J15RE 12W 15Ohm
$9.99
quality
New OHMITE Adjustable Power Resistor 1000 Ohms At 225 Watts D225KK0
New OHMITE Adjustable Power Resistor 1000 Ohms At 225 Watts D225KK0
$4.99
quality
5 pcs 23J330 OHMITE AXIAL WIREWOUND RESISTORS 330 Ohm 3W 5 VITREOUS ENAMEL
5 pcs 23J330 OHMITE AXIAL WIREWOUND RESISTORS 330 Ohm 3W 5 VITREOUS ENAMEL
$7.99
quality
10 Pieces TUW10J6R8 Wirewound Resistors Through Hole 10watt 68ohm 5 Axial
10 Pieces TUW10J6R8 Wirewound Resistors Through Hole 10watt 68ohm 5 Axial
$5.00
quality
8 Pieces TUW10J6R8 Wirewound Resistors Through Hole 10watt 68ohm 5 Axial
8 Pieces TUW10J6R8 Wirewound Resistors Through Hole 10watt 68ohm 5 Axial
$4.00
quality
NEW OHMITE RESISTOR D225K1K0 1K 1K 1000 OHM 225 WATT
NEW OHMITE RESISTOR D225K1K0 1K 1K 1000 OHM 225 WATT
$10.00
quality
OHMITE CERAMIC POWER RESISTOR 20 WATT LOT OF 4 B20J1K0 NIB
OHMITE CERAMIC POWER RESISTOR 20 WATT LOT OF 4 B20J1K0 NIB
$13.95
quality
OHMITE 18E 18E 10 POWER RESISTOR BRACKETS 20 PIECES
OHMITE 18E 18E 10 POWER RESISTOR BRACKETS 20 PIECES
$22.00
quality
1x 1 Ohm 150W Rheostat Wirewound Resistor Potentiometer 150 Watt 1ohm
1x 1 Ohm 150W Rheostat Wirewound Resistor Potentiometer 150 Watt 1ohm
$58.99
quality
OHMITE F55J1RO RESISTOR 55W 55 WATTS THIN RESISTOR STACKOHM NEW SURPLUS
OHMITE F55J1RO RESISTOR 55W 55 WATTS THIN RESISTOR STACKOHM NEW SURPLUS
$22.35
quality
1x 750 Ohm 150W Rheostat Wirewound Resistor Potentiometer 150 Watt 750ohm
1x 750 Ohm 150W Rheostat Wirewound Resistor Potentiometer 150 Watt 750ohm
$58.99
quality
RCD Ceramic Power Resistor 16K Ohm 25W  97P019
RCD Ceramic Power Resistor 16K Ohm 25W 97P019
$4.95
quality
Vintage OHMITE LITTLE DEVILS Storage Drawer Shop Organizer Resistor Capacitor
Vintage OHMITE LITTLE DEVILS Storage Drawer Shop Organizer Resistor Capacitor
$33.00
quality
p Lot of 5 OHMITE RESISTOR 11W 10kOhm NOS
p Lot of 5 OHMITE RESISTOR 11W 10kOhm NOS
$6.99
quality
Ohmite Resistor 0200K 25W 5 Ohms NOS New in Box
Ohmite Resistor 0200K 25W 5 Ohms NOS New in Box
$19.50
quality
35 pieces Ohmite Fixed WW Resistor 10K 78w RW36V103 radio analog New
35 pieces Ohmite Fixed WW Resistor 10K 78w RW36V103 radio analog New
$74.60
quality
6 pieces Ohmite Fixed Film Resistor p n 270 65 M 40 400RO F htf New
6 pieces Ohmite Fixed Film Resistor p n 270 65 M 40 400RO F htf New
$33.78
quality
10 Ohmite Resistor 430K Ohm 2 Watt 5 Carbon Comp RC42GF434J
10 Ohmite Resistor 430K Ohm 2 Watt 5 Carbon Comp RC42GF434J
$8.02
quality
OHMITE VARIABLE RESISTOR  RP161FD502KK NSN 5905 00 475 2887  M22 06 00271FD
OHMITE VARIABLE RESISTOR RP161FD502KK NSN 5905 00 475 2887 M22 06 00271FD
$145.00
quality
Ohmite 200 Watt Power Resistor 100000 Ohm 0925
Ohmite 200 Watt Power Resistor 100000 Ohm 0925
$8.50
quality
Ohmite 12 watt 5 ohm Series 1004 dividohm vitreous enameled resistor C203
Ohmite 12 watt 5 ohm Series 1004 dividohm vitreous enameled resistor C203
$5.00
quality
RCD Cement Power Resistor 16K Ohm 25W Lot of 5  97P019
RCD Cement Power Resistor 16K Ohm 25W Lot of 5 97P019
$12.95
quality
OHMITE RESISTOR 2PC LOT 25 KOHMS 12W  B12J25K NSN 5905 00 101 7932  1767
OHMITE RESISTOR 2PC LOT 25 KOHMS 12W B12J25K NSN 5905 00 101 7932 1767
$6.50
quality
LARGE Organized Carbon COMP Film RESISTOR LOT mostly 1 4 w 5 Over 8000
LARGE Organized Carbon COMP Film RESISTOR LOT mostly 1 4 w 5 Over 8000
$99.95
quality
QTY 25 23J50R OHMITE AXIAL WIREWOUND RESISTORS 50 Ohm 3W 5 VITREOUS ENAMEL
QTY 25 23J50R OHMITE AXIAL WIREWOUND RESISTORS 50 Ohm 3W 5 VITREOUS ENAMEL
$14.99
quality
Resistor 5 ohms 50 watts adjustable OHMITE 3pieces
Resistor 5 ohms 50 watts adjustable OHMITE 3pieces
$12.79
quality
Ohmite 0600C Resistor 100 Watt 1 Ohms 270 100M L100J1R0 5905002835430
Ohmite 0600C Resistor 100 Watt 1 Ohms 270 100M L100J1R0 5905002835430
$16.50
quality
NEW OHMITE LUG RESISTOR L225J10R 225W 10
NEW OHMITE LUG RESISTOR L225J10R 225W 10
$5.00
quality
300 Watt Power resistor 33 ohm
300 Watt Power resistor 33 ohm
$19.95
quality
D100K25K Ohmite 100 Watt 25K Ohm 10 Adjustable Wirewound Resistor
D100K25K Ohmite 100 Watt 25K Ohm 10 Adjustable Wirewound Resistor
$19.50
quality
LOT of 2 Ohmite 100 OHM 210 100M 40 Variable 100ROJ Resistor 9128
LOT of 2 Ohmite 100 OHM 210 100M 40 Variable 100ROJ Resistor 9128
$38.88
quality
Ohmite OF754J Resistor 1 2 Watt Pack Of 100
Ohmite OF754J Resistor 1 2 Watt Pack Of 100
$20.00
quality
50 Ohmite OF222JE 22K 5 1 2W Carbon Composition Resistors
50 Ohmite OF222JE 22K 5 1 2W Carbon Composition Resistors
$19.99
quality
Lot of 2 Ohmite B8J3K0 Resistor NEW
Lot of 2 Ohmite B8J3K0 Resistor NEW
$10.99
quality
Ohmite Resistors 10 Ohm 225W P N L225J10R
Ohmite Resistors 10 Ohm 225W P N L225J10R
$14.50
quality
OHMITE VITREOUS ENAMELED RESISTOR LOT SALE OF 23
OHMITE VITREOUS ENAMELED RESISTOR LOT SALE OF 23
$82.00
quality
OHMITE 0165A7844P4 RESISTOR BAYONET BASE 250V 1 EACH
OHMITE 0165A7844P4 RESISTOR BAYONET BASE 250V 1 EACH
$21.50
quality
Ohmite NO 2916 8200 Ohm N1740 Resistor
Ohmite NO 2916 8200 Ohm N1740 Resistor
$2.40
quality
Ohmite D12K20R 20 Ohm 12 Watt Power Resistor
Ohmite D12K20R 20 Ohm 12 Watt Power Resistor
$2.30
quality
Ohmite N 270 25K 40 25W 50 Ohms Resistor
Ohmite N 270 25K 40 25W 50 Ohms Resistor
$2.48
quality
OHMITE 0957 DIVIDOHM VITREOUS ENAMELED RESISTOR 100W 10 OHMS NIB
OHMITE 0957 DIVIDOHM VITREOUS ENAMELED RESISTOR 100W 10 OHMS NIB
$16.97
quality
OHMITE VARIABLE RESISTOR  D25K4K5 NSN 5905 01 008 6206 4500 OHMS 25W
OHMITE VARIABLE RESISTOR D25K4K5 NSN 5905 01 008 6206 4500 OHMS 25W
$9.25
quality
Ohmite Resistors 63 Ohm 300W P N C300K6R3
Ohmite Resistors 63 Ohm 300W P N C300K6R3
$17.00
quality
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Ohmite Resistors

See More About:    Ohmite Resistor        
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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