Resistor Precision
Resistor Precision
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19x 01 Ohms 1 3W Precision Wirewound Resistor Current Sense Flame Proof |  |
1 Bid | US $4.95 | 1h 57m |
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Resistor 115K ohms 1 precision wire wound resistor 1 w | |
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US $5.00 | 3h 16m |
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10pcs 3296 502 5K Variable Resistor Precision | |
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US $7.99 | 3h 47m |
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10pcs 3296 102 1K Variable Resistor Precision | |
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US $7.99 | 3h 47m |
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10pcs 3296 202 2K Variable Resistor Precision | |
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US $7.99 | 3h 47m |
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10pcs 3296 103 10K Variable Resistor Precision | |
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US $7.99 | 3h 47m |
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80Pc 3096 High Precision Variable Resistor Kit 50 100K C37 | |
0 Bid | US $11.79 | 3h 57m |
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1 PCs Tektronix 307 0064 00 Precision RF Resistor NOS | |
0 Bid | US $4.99 | 4h 10m |
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1 PCs Tektronix 307 0283 00 HV Precision Resistor Divider NOS | |
0 Bid | US $9.99 | 4h 10m |
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1 PCs Tektronix 307 0290 03 HV Precision Resistor Divider NOS | |
0 Bid | US $9.99 | 4h 10m |
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1 PCs Tektronix 307 0363 00 HV Precision Resistor Divider NOS | |
0 Bid | US $9.99 | 4h 11m |
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1 PCs Tektronix 307 0386 02 HV Precision Resistor Divider NOS | |
0 Bid | US $9.99 | 4h 11m |
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1 PCs Tektronix 307 0490 00 HV Precision Resistor Divider SC502 SC504 | |
0 Bid | US $9.99 | 4h 11m |
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1 PCs Tektronix 307 0710 00 Precision Resistor Divider NOS | |
0 Bid | US $9.99 | 4h 11m |
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1 PCs Tektronix 307 0843 00 Precision Resistor Divider NOS | |
0 Bid | US $7.99 | 4h 11m |
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1 PCs Tektronix 310 0694 00 Precision Resistor NOS | |
0 Bid | US $4.99 | 4h 11m |
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1 PCs Tektronix 312 0655 01 Precision Resistor DividerMatched Pair NOS | |
0 Bid | US $12.99 | 4h 12m |
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PCN precision metal clad Resistor RH250ML 001 OhmB | |
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US $49.00 | 4h 18m |
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50pcs 3296 504 500K Variable Resistor Precision | |
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US $13.99 | 4h 22m |
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50pcs 3296 201 200ohm Variable Resistor Precision | |
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US $13.99 | 4h 22m |
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50pcs 3296 202 2K Variable Resistor Precision | |
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US $13.99 | 4h 22m |
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50pcs 3296 205 2000K 2M Variable Resistor Precision | |
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US $13.99 | 4h 22m |
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5 pcs 3296 W High Precision Variable Resistor Potentiometer Trimmer 253 25k ohm | |
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US $2.19 | 4h 57m |
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80Pc 3096 High Precision Variable Resistor Kit 50 100K U37 | |
0 Bid | US $12.00 | 4h 58m |
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10x 3296 Precision Trimpot Resistor 100k Ohm M1 104 | |
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US $3.81 | 5h 14m |
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SPR 100 ohm Precision Power Resistor 5W 1 Low noise audio KOA USA Qty8 | |
0 Bid | US $3.90 | 6h 8m |
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SPR 22K Power Precision Resistor 5W 1 Low Noise Audio KOA USA x8 | |
0 Bid | US $3.90 | 6h 13m |
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10 pcs High Precision 3296 Variable Resistors 100 OHM | |
0 Bid | US $4.99 | 8h 7m |
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10 pcs High Precision 3296 Variable Resistors 100K OHM | |
0 Bid | US $4.99 | 8h 7m |
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10 pcs High Precision 3296 Variable Resistors 1K OHM | |
0 Bid | US $4.99 | 8h 7m |
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10 pcs High Precision 3296 Variable Resistors 200 OHM | |
0 Bid | US $4.99 | 8h 7m |
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10 pcs High Precision 3296 Variable Resistors 20K OHM | |
0 Bid | US $4.99 | 8h 7m |
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10 pcs High Precision 3296 Variable Resistors 2K OHM | |
0 Bid | US $4.99 | 8h 7m |
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10 pcs High Precision 3296 Variable Resistors 500 OHM | |
0 Bid | US $4.99 | 8h 7m |
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10 pcs High Precision 3296 Variable Resistors 50K OHM | |
0 Bid | US $4.99 | 8h 7m |
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100 pcs High Precision 3296 Variable Resistors 100 OHM | |
0 Bid | US $19.99 | 8h 36m |
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100 pcs High Precision 3296 Variable Resistors 100K OHM | |
0 Bid | US $19.99 | 8h 36m |
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100 pcs High Precision 3296 Variable Resistors 10K OHM | |
0 Bid | US $19.99 | 8h 36m |
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100 pcs High Precision 3296 Variable Resistors 1K OHM | |
0 Bid | US $19.99 | 8h 37m |
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100 pcs High Precision 3296 Variable Resistors 200 OHM | |
0 Bid | US $19.99 | 8h 37m |
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100 pcs High Precision 3296 Variable Resistors 20K OHM | |
0 Bid | US $19.99 | 8h 37m |
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100 pcs High Precision 3296 Variable Resistors 2K OHM | |
0 Bid | US $19.99 | 8h 37m |
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100 pcs High Precision 3296 Variable Resistors 500 OHM | |
0 Bid | US $19.99 | 8h 37m |
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100 pcs High Precision 3296 Variable Resistors 50K OHM | |
0 Bid | US $19.99 | 8h 37m |
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PRECISION POWER RESISTOR 825 OHM 1 50W by OHMITE | |
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US $3.99 | 14h 27m |
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20 pcs High Precision 3296 Variable Resistors 100 OHM | |
0 Bid | US $6.99 | 15h 3m |
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20 pcs High Precision 3296 Variable Resistors 100K OHM | |
0 Bid | US $6.99 | 15h 3m |
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20 pcs High Precision 3296 Variable Resistors 10K OHM | |
0 Bid | US $6.99 | 15h 3m |
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20 pcs High Precision 3296 Variable Resistors 1K OHM | |
0 Bid | US $6.99 | 15h 3m |
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20 pcs High Precision 3296 Variable Resistors 200 OHM | |
0 Bid | US $6.99 | 15h 4m |
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20 pcs High Precision 3296 Variable Resistors 20K OHM | |
0 Bid | US $6.99 | 15h 4m |
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20 pcs High Precision 3296 Variable Resistors 2K OHM | |
0 Bid | US $6.99 | 15h 4m |
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20 pcs High Precision 3296 Variable Resistors 500 OHM | |
0 Bid | US $6.99 | 15h 4m |
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20 pcs High Precision 3296 Variable Resistors 50K OHM | |
0 Bid | US $6.99 | 15h 4m |
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MALLORY PRECISION 5AV500 5AV 500 RESISTOR NEW | |
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US $5.00 | 15h 52m |
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Lot of 20 RCD MF60 05W 10 kOhm 01 precision resistor 50 ppm NOS | |
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US $24.90 | 16h 51m |
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1 MA 15 KVOLTS 5 KV 15 MEG OHM PRECISION HIGH VOLTAGE WIREWOUND RESISTOR F98 | |
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US $49.99 | 18h 39m |
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40 pcs High Precision 3296 Variable Resistors 100 OHM | |
0 Bid | US $9.99 | 18h 52m |
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40 pcs High Precision 3296 Variable Resistors 100K OHM | |
0 Bid | US $9.99 | 18h 52m |
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40 pcs High Precision 3296 Variable Resistors 10K OHM | |
0 Bid | US $9.99 | 18h 52m |
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40 pcs High Precision 3296 Variable Resistors 1K OHM | |
0 Bid | US $9.99 | 18h 52m |
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40 pcs High Precision 3296 Variable Resistors 200 OHM | |
0 Bid | US $9.99 | 18h 52m |
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40 pcs High Precision 3296 Variable Resistors 20K OHM | |
0 Bid | US $9.99 | 18h 52m |
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40 pcs High Precision 3296 Variable Resistors 2K OHM | |
0 Bid | US $9.99 | 18h 52m |
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40 pcs High Precision 3296 Variable Resistors 500 OHM | |
0 Bid | US $9.99 | 18h 52m |
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40 pcs High Precision 3296 Variable Resistors 50K OHM | |
0 Bid | US $9.99 | 18h 52m |
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40pcs 4 values High Precision 3296 Variable Resistors | |
0 Bid | US $9.99 | 18h 54m |
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3459 Ohm m PRECISION RESISTOR WIRE MANGANIN NET 153g | |
0 Bid | US $42.99 | 21h 29m |
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4x Dale Precision Power Resistor 32K Ohm 10W 1 RH 10 DalOhm | |
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US $11.45 | 22h 19m |
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100 Mepco Electra 432K RN60C Precision Resistors | |
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US $12.99 | 23h 44m |
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Resistor 130 ohms 1 precision resistor NEW lot of 4 | |
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US $4.00 | 1d 9m |
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3296w Variable Resistor Precision 10 pcs | |
0 Bid | US $.01 | 1d 2h 20m |
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80Pc 3096 High Precision Variable Resistor Kit 50 100K U2S | |
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US $12.00 | 1d 2h 31m |
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5 pcs 1 PRECISION RMB Series RESISTORS 301ohm 3W | |
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US $1.95 | 1d 7h 35m |
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High Precision 3296 Variable Resistors 200K Ohm 60pcs | |
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US $14.49 | 1d 7h 57m |
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High Precision 3296 Variable Resistors 10K Ohm 50pcs | |
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US $10.12 | 1d 8h 20m |
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High Precision 3296 Variable Resistors 20K Ohm 150pcs | |
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US $27.31 | 1d 8h 21m |
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1000pcs 3296 504 500K Variable Resistor Precision | |
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US $175.00 | 1d 9h 14m |
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1000pcs 3296 105 1M Variable Resistor Precision | |
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US $175.00 | 1d 9h 20m |
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1000pcs 3296 202 2K Variable Resistor Precision | |
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US $175.00 | 1d 9h 23m |
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1000pcs 3296 103 10K Variable Resistor Precision | |
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US $175.00 | 1d 9h 26m |
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BEI RN60C Metal Film Precision Film Resistors 825k Ω 1 25W x 10pcs | |
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US $1.75 | 1d 9h 44m |
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100 pcs 3296 High Precision Variable Resistor 2K OHM | |
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US $18.99 | 1d 12h 45m |
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20 pcs 3296 High Precision Variable Resistor 2K OHM | |
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US $6.99 | 1d 12h 46m |
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50 pcs 3296 High Precision Variable Resistor 2K OHM | |
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US $11.99 | 1d 12h 48m |
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20 pcs 3296 High Precision Variable Resistor 20K OHM | |
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US $6.99 | 1d 12h 58m |
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50 pcs 3296 High Precision Variable Resistor 20K OHM | |
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US $11.99 | 1d 12h 58m |
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25 AS5 2 Ohm 3 5 Watt Precision Resistors | |
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US $12.99 | 1d 13h 34m |
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5 RIEDON INC SM 4 SM SERIES 6736K OHM 005 PRECISION WIREWOUND RESISTOR | |
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US $9.95 | 1d 15h 26m |
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100 Dale CPF 2 15 Ohm 2W 2 Precision Resistors | |
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US $19.99 | 1d 16h 8m |
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200 287 OHM RN60D TYPE PRECISION RESISTORS | |
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US $12.99 | 1d 16h 25m |
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4x BWL 0R2 3W high precision epoxy molded resistor | |
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US $9.99 | 1d 16h 34m |
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NEW KDI KDI9005 PRECISION RESISTOR PME75T2 | |
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US $3.99 | 1d 18h 47m |
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Dale RN70D Metal Film Precision Film Resistors 68k Ω 1 Low Noise Audio x 5 | |
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US $2.10 | 1d 21h 27m |
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3529 Ohm m PRECISION RESISTOR WIRE MANGANIN NET 140g | |
0 Bid | US $42.99 | 1d 21h 56m |
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500 NEW Mepco Electra RN60D 532 Ohms Precision Resistor | |
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US $49.99 | 1d 22h 6m |
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1400 NEW Mepco Electra RN55C Precision Resistors 121K | |
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US $113.99 | 1d 22h 7m |
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Dale LVR 3 02 Ohm 1 3W Precision Power Wirewound Resistor LVR03 Qty 5 | |
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US $15.99 | 1d 23h 6m |
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SPR 100K Power Precision Resistor 5W 1 Low Noise Audio KOA USA x8 | |
0 Bid | US $4.90 | 2d 51m |
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100pcs Assorted 1 Precision Resistor Kit | |
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US $5.39 | 2d 4h 9m |
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
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Vishay Bulk Metal® Foil Resistor PCR Performance (Product Demo)
