Resistor Precision
Resistor Precision
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99 Mepco Electra RN55E1331F 13K Precision Resistors |  |
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US $10.99 | 4h 40m |
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100 Dale RN60C 909 Ohm 1 Precision Resistors | |
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US $12.99 | 4h 41m |
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ETI Systems Resistor Variable Wire Wound Precision MC20 1 20K 12VDC 147RPM | |
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US $100.00 | 5h 32m |
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50 Dale RNC65H Precision Resistors Your Choice of Value | |
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US $12.99 | 6h 21m |
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100 Dale RN60C 301K Ohm Precision Resistors | |
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US $12.99 | 7h 31m |
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175 Mepco RN60C 909 Ohm 1 Precision Resistors | |
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US $22.75 | 7h 54m |
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3362P Variable Resistor Precision 25 pcs | |
0 Bid | US $.99 | 8h 30m |
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200 Vishay CMF55 301K 1 4W 1 Precision Resistor | |
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US $12.99 | 8h 34m |
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10pcs KOA 5W003ohm 1 high power precision resistors | |
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US $12.50 | 8h 48m |
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200pcs 3W 100ohm resistors precision 5 | |
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US $24.50 | 8h 57m |
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3296w Variable Resistor Precision 25 pcs | |
0 Bid | US $.99 | 9h 3m |
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10K ohm Precision 3296 Variable ResistorVRTrimmerx10 | |
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US $4.99 | 10h 36m |
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RK 1K Precision 1 4W SMT Low Noise Audio Resistor x20 | |
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US $4.70 | 10h 39m |
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RK 47K Precision 1 4W SMT Low Noise Audio Resistor x10 | |
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US $2.90 | 11h 2m |
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110ea Vishay PTF56 10 PPM 1 High Precision Metal Film Resistor Kit Assortment | |
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US $49.00 | 11h 45m |
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SPR 10K Power Precision Resistor 5W 1 Flameproof x5 | |
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US $3.90 | 11h 47m |
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80Pc 3096 High Precision Variable Resistor Kit 50 100K | |
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US $11.31 | 14h 14m |
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80Pc 3096 High Precision Variable Resistor Kit 50 100K US4 | |
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US $10.80 | 15h 24m |
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NEW 50PCS 3296 Variable Resistors Pack High Precision | |
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US $7.99 | 22h 49m |
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5 Vintage Shallcross HR36 Ultra Precision Resistors | |
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US $9.49 | 23h 14m |
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PRECISION RESISTOR PTMN 1 Lot of 10 | |
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US $3.50 | 23h 24m |
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1x 2K Very High Precision and Stability Metal Foil Resistors ±01 | |
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US $5.00 | 1d 49m |
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1x 1899K Very High Precision and Stability Metal Foil Resistors ±01 1K899 | |
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US $5.00 | 1d 53m |
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86 Dale RN60D 392K 1 4W 1 Precision Resistors | |
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US $9.99 | 1d 4h 6m |
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3529 Ohm m PRECISION RESISTOR WIRE MANGANIN NET 140g | |
0 Bid | US $42.99 | 1d 4h 22m |
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Mil Spec Metal Film Precision 1W Resistor 20K 01 x5 | |
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US $2.80 | 1d 4h 48m |
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VPR PRECISION 291 Kohm RESISTORS 1 LOT OF 25 | |
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US $6.50 | 1d 5h 9m |
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100 TRW IRC RN60D 511R 1 PRECISION RESISTORS | |
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US $12.99 | 1d 6h 29m |
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RK 10K Precision 1 4W SMT Low Noise special Audio Resistor x20 | |
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US $4.70 | 1d 6h 53m |
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80Pc 3096 High Precision Variable Resistor Kit 50 100K CA1 | |
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US $10.55 | 1d 7h 4m |
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100 Dale RN55D 976 1 Precision Resistors | |
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US $12.99 | 1d 7h 26m |
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Mil Spec Metal Film Precision 1W Resistor 10 Ω 05 x5 | |
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US $2.50 | 1d 7h 28m |
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SPR 22K Power Precision Resistor 5W 1 Flameproof x8 | |
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US $5.30 | 1d 8h 56m |
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10 Pack VINTAGE DALE RN65D 10M 10 Meg 1 PRECISION METAL FILM RESISTOR | |
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US $5.95 | 1d 9h 8m |
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80Pc 3096 High Precision Variable Resistor Kit 50 100K US3 | |
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US $10.70 | 1d 11h 10m |
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RK 47K Precision 1 4W SMT Low Noise Audio Resistor x20 | |
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US $4.70 | 1d 11h 28m |
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1952 56 LUXE Precision Bass 1mfd Capacitor Kit w Resistors NOS Paper In Oil Cap | |
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US $27.00 | 1d 13h 26m |
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50 Matel Film PRECISION Resistor 37KΩ 1 2W ±1 Axial | |
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US $2.25 | 1d 16h 26m |
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50pcs Matel Film Precision Resistor 15KΩ 1 2W ±1 | |
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US $2.25 | 1d 16h 47m |
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0 999999 6 knob PRECISION VARIABLE DECADE RESISTOR BOX | |
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US $95.00 | 1d 18h 2m |
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392ohm 392 ohm 025W 1 HF PRECISION Resistors 25pcs | |
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US $3.60 | 1d 18h 3m |
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80Pc 3096 High Precision Variable Resistor Kit 50 100K AU3 | |
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US $11.63 | 1d 18h 12m |
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10pcs3296 101 100ohm Variable Resistor Precision | |
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US $5.99 | 1d 19h |
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10pcs3296 102 1K Variable Resistor Precision | |
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US $5.99 | 1d 19h |
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10pcs3296 103 10K Variable Resistor Precision | |
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US $5.99 | 1d 19h |
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10pcs3296 104 100K Variable Resistor Precision | |
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US $5.99 | 1d 19h 1m |
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10pcs3296 105 1M Variable Resistor Precision | |
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US $5.99 | 1d 19h 1m |
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10pcs3296 201 200ohm Variable Resistor Precision | |
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US $5.99 | 1d 19h 1m |
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10pcs3296 202 2K Variable Resistor Precision | |
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US $5.99 | 1d 19h 1m |
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10pcs3296 203 20K Variable Resistor Precision | |
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US $5.99 | 1d 19h 1m |
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10pcs3296 204 200K Variable Resistor Precision | |
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US $5.99 | 1d 19h 1m |
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10pcs3296 501 500ohm Variable Resistor Precision | |
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US $5.99 | 1d 19h 1m |
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10pcs3296 502 5K Variable Resistor Precision | |
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US $5.99 | 1d 19h 1m |
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10pcs3296 503 50K Variable Resistor Precision | |
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US $5.99 | 1d 19h 1m |
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10pcs3296 504 500K Variable Resistor Precision | |
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US $5.99 | 1d 19h 1m |
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10pcs3362 101 100ohm Variable Resistor Precision | |
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US $5.99 | 1d 19h 1m |
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10pcs3362 102 1K Variable Resistor Precision | |
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US $5.99 | 1d 19h 1m |
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10pcs3362 103 10K Variable Resistor Precision | |
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US $5.99 | 1d 19h 2m |
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10pcs3362 104 100K Variable Resistor Precision | |
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US $5.99 | 1d 19h 2m |
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10pcs3362 105 1M Variable Resistor Precision | |
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US $5.99 | 1d 19h 2m |
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10pcs3362 201 200ohm Variable Resistor Precision | |
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US $5.99 | 1d 19h 2m |
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10pcs3362 202 2K Variable Resistor Precision | |
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US $5.99 | 1d 19h 2m |
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10pcs3362 203 20K Variable Resistor Precision | |
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US $5.99 | 1d 19h 2m |
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2pcs3362 204 200K Variable Resistor Precision | |
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US $1.99 | 1d 19h 2m |
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10pcs3362 501 500ohm Variable Resistor Precision | |
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US $5.99 | 1d 19h 2m |
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10pcs3362 502 5K Variable Resistor Precision | |
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US $5.99 | 1d 19h 2m |
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10pcs3362 503 50K Variable Resistor Precision | |
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US $5.99 | 1d 19h 2m |
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10pcs3362 504 500K Variable Resistor Precision | |
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US $5.99 | 1d 19h 2m |
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590ohm 590 ohm 05W 2 Corning PRECISION Resistors 100p | |
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US $6.50 | 1d 19h 31m |
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200 ME 166 Ohm RN60C Precision Resistors | |
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US $12.99 | 2d 4h 4m |
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80Pc 3096 High Precision Variable Resistor Kit 50 100K US1 | |
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US $10.50 | 2d 4h 10m |
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ERJ2RKF1002X 10 Kohm 1 Precision Thick Film Chip Resistors 100K PCS NEW | |
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US $350.00 | 2d 6h 45m |
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Mil Spec Metal Film Precision 1W Resistor 953Ω 01 x8 | |
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US $2.50 | 2d 8h 13m |
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200 Dale RN55C 402 Ohm 1 Precision Resistors | |
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US $12.99 | 2d 9h 40m |
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3 IRC 22K Precision Precistor Resistor | |
0 Bid | US $4.50 | 2d 10h 3m |
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OMI Non Inductive Precision Wirewound Resistors 1kΩ 1 1W x 5pcs | |
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US $1.80 | 2d 10h 21m |
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10 Pack MEPCO ELECTRA RN65D 135K 1 PRECISION METAL FILM RESISTOR | |
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US $5.95 | 2d 11h 2m |
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10 Pack CGW CORNING RN65D 135K 1 PRECISION METAL FILM RESISTOR | |
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US $5.95 | 2d 11h 12m |
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RK 20K Precision 1 4W SMT Low Noise Audio Resistor x10 | |
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US $2.90 | 2d 11h 14m |
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10 Pack MEPCO ELECTRA RN65D 182K 1 PRECISION METAL FILM RESISTOR | |
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US $5.95 | 2d 11h 16m |
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10 Pack MEPCO ELECTRA RN65D 402 OHM 1 PRECISION METAL FILM RESISTOR | |
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US $5.95 | 2d 11h 19m |
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10 Pack TEXAS INSTRUMENTS RN60D 422 OHM 1 PRECISION METAL FILM RESISTOR | |
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US $5.95 | 2d 11h 25m |
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10 Pack TEXAS INSTRUMENTS RN60C 432 OHM 1 PRECISION METAL FILM RESISTOR | |
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US $5.95 | 2d 11h 29m |
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10 Pack MEPCO ELECTRA RN65D 100 OHM 2 PRECISION MIL SPEC METAL FILM RESISTOR | |
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US $5.95 | 2d 11h 42m |
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PRECISION RESISTOR 10PPM 01 TC10 MT FILM YOUR PICK | |
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US $9.90 | 2d 12h 17m |
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19x 01 Ohms 1 3W Precision Wirewound Resistor Current Sense Flame Proof | |
0 Bid | US $4.95 | 2d 12h 19m |
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3296 Variable Resistor Pack High Precision 50 pcs | |
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US $6.59 | 2d 12h 51m |
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1000pcs 3296 104 100K Variable Resistor Precision NEW | |
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US $178.00 | 2d 13h 52m |
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1000pcs3296 201 200ohm Variable Resistor Precision NEW | |
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US $178.00 | 2d 13h 54m |
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1000pcs3296 101 100ohm Variable Resistor Precision NEW | |
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US $178.00 | 2d 13h 57m |
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10003296 205 2000K 2M Variable Resistor Precision NEW | |
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US $178.00 | 2d 13h 58m |
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1000pcs 3296 503 50K Variable Resistor Precision NEW | |
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US $178.00 | 2d 13h 59m |
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80Pc 3096 High Precision Variable Resistor Kit 50 100K AU1 | |
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US $11.42 | 2d 14h 13m |
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10pcs 3296 101 100ohm Variable Resistor Precision NEW | |
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US $7.99 | 2d 14h 37m |
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10pcs 3296 201 200ohm Variable Resistor Precision NEW | |
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US $7.99 | 2d 14h 38m |
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10pcs 3296 105 1M Variable Resistor Precision NEW | |
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US $7.99 | 2d 14h 38m |
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Precision Resistor Dale RS 10 20K Ohm 1 10 Watt 2 | |
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US $9.18 | 2d 15h 2m |
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80Pc 3096 High Precision Variable Resistor Kit 50 100K CA2 | |
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US $10.65 | 2d 15h 54m |
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50pcs 3296 101 100ohm Variable Resistor Precision | |
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US $13.99 | 2d 16h 18m |
How to aim a laser beam on a photoresistor 40m away?
I need to direct a laser beam from a cheap laser pointer to a photoresistor 40m away. The area of the resistor is less than 1 sq. cm., so the pointer needs to be aligned precisely. I tried fixing the pointer on a camera tripod but I need more precision. Any ideas on how to do this?
The problem is aiming correctly.
I once had a telescope that had an alignment ring for the viewfinder. This was a ring with 3 screws around it and the viewfinder in the middle. You could use a screwdriver to turn each of the screws and thus aim easily by moving the viewfinder in very fine steps.
I was thinking that maybe something like that existed for this particular application, that I could find easily.
Although a theodolite would be perfect, it's way out of my project's budget...any other ideas?
One could make a fairly precise aiming device from two strap hinges, 2 springs (moderately stiff) , 2 machine screws (preferably fairly fine thread) and 2 wing or knurled nuts. Placing the spring between the two leaves of the spring with the screw holding it together give one a fine angle adjustment, connecting two at right angles can give one altitude and azimuth adjustment. Attach your pointer to the assembly, and the assembly to a sturdy support (perhaps you tripod with some ballast, maybe a jug of water or a sandbag)
EDIT;
As an example, supposing one got hinges that were 10cm between the hinge pin and the hole the bolt goes through, further the bolt has a thread pitch of 0.5mm , in this case, about a 20° turn of the adjusting nut will make a one minute of arc change in the angle of the hinge, I would guess that with a moderately stiff spring to remove slack from the mechanism, a light touch on the screw and a very sturdy support, a couple arc seconds adjustment might be possible
One might also _try_ a lens to diverge the beam a bit, while this will reduce the light falling on the photo resistor, it might still be enough and could make aiming easier.
Five Band Resistor Color Code - What Does The Last Band Of White Color Represent?
In electronic repair, most of the time I came across five band resistor color code. The purpose of using the five color band resistor in a circuit is that it will provide a more accurate value compare to the four color band. For example in order to get the value of 22.6kohm, with four colors band resistor you will not be able to find it. The most you can get is 22k (red, red, orange and gold). If with the five color band you will be able to calculate it (red, red, blue, red, brown)the last color which is brown represent 1% tolerance. You may go to google search engine and type resistor color code, resistor color coding, resistor color code calculator, or resistor color code chart to know more about how to calculate a five band resistor values.
If you open up an analog multimeter you will understand what I mean. Most of the resistors circuit inside the multimeter are using five color band. Why? Because the reading that you get whenever you measure current, voltage or ohm, the panel will show the nearest value. For instance, if you measure a 9v battery the needle will point to may be 8.9v, 9v, or 9.1 volt. If that particular multimeter was designed using four color band resistor the result that it gets may be 8.5v, 9.5v or even 10 volt. In other words the use of five color band resistor is to make a circuit more precise and output the desire result as what the engineers want it to be.
There was a interesting five color band resistor which was very unique. In fact i have already seen quite a number of them. I will reveal the calculation about this unique five color band resistor. The colors are orange, orange, red, gold, white. Actually it is a four color band resistor. Just ignore the white color and proceed to calculate using the four color band formula. As to why the resistor manufacturers add this 'extra' white band i really do not know. However, from forum someone said that it is for the military purposes. If you know the answer i would like you to email me so that I can share with other fellow electronic repairer through this info repairing newsletter.
About the Author
Check out the two links below. You will be pleasantly surprised to find out that LCD and Electronic Repairs are so Easy and Highly Profitable for even a novice. You can learn the repairing secrets easily.
Find out How to Repair Any LCD Monitor - It is a breeze!
Learn the Secrets of Testing Electronic Components.
Vishay Bulk Metal® Foil Resistor PCR Performance (Product Demo)
