Precision Potentiometer
Precision Potentiometer
LED dimmer or potentiometer?
I have like 50 or so red leds i need to be able to dim, I found a “led dimmer” on ebay. Its pretty straight forward, but its 10 bucks. I dont want to pay 10 bucks per dimmer in the future. why not fabricate my own?
http://cgi.ebay.com/LED-Adjustable-Dimmer-Brightness-Controller-DC-12V-8A-D_W0QQitemZ260576152485QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item3cab8c8ba5#ht_2883wt_1165
there is the dimmer. Or should i just make my own out of this http://cgi.ebay.com/3296-Variable-Resistor-Precision-10-pcs_W0QQitemZ260572573776QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item3cab55f050#ht_2610wt_1165
Any links to cheap potentiometer/Variable Resistors or build instructions or what have you would be much appreciated. thank you.
The one you reference is made for high power LEDs, 100 watts. And it has few specs other than the Input Voltage and current specs, so there is no way to tell if it would work for your application.
The second reference is a bunch of 1/4 watt pots, not nearly enough power for your application.
You need to supply more info, voltage and current of the LEDs, and your power supply voltage and current. Do you need to control then all together or individually?
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Samarius Precision Potentiometer HP202 0-20K 0-2K Ohm $79.99 |
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Vernitron Precision Potentiometer Model 175 176 a378 $39.99 |
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100x 3296 W High Precision Variable Resistor Potentiometer Trimmer 103 10k ohm $12.50 |
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100x 3296 W High Precision Variable Resistor Potentiometer Trimmer 102 1k ohm $12.50 |
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100x 3296 W High Precision Variable Resistor Potentiometer Trimmer 105 1M ohm $12.50 |
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100x 3296 W High Precision Variable Resistor Potentiometer Trimmer 202 2k ohm $12.50 |
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100x 3296 W High Precision Variable Resistor Potentiometer Trimmer 205 2M ohm $12.50 |
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100x 3296 W High Precision Variable Resistor Potentiometer Trimmer 203 20k ohm $12.50 |
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100x 3296 W High Precision Variable Resistor Potentiometer Trimmer 50 ohm $12.50 |
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100x 3296 W High Precision Variable Resistor Potentiometer Trimmer 503 50k ohm $12.50 |
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100x 3296 W High Precision Variable Resistor Potentiometer Trimmer 101 100 ohm $12.50 |
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100x 3296 W High Precision Variable Resistor Potentiometer Trimmer 104 100k ohm $12.50 |
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100x 3296 W High Precision Variable Resistor Potentiometer Trimmer 201 200 ohm $12.50 |
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100x 3296 W High Precision Variable Resistor Potentiometer Trimmer 204 200k ohm $12.50 |
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100x 3296 W High Precision Variable Resistor Potentiometer Trimmer 501 500 ohm $12.50 |
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100x 3296 W High Precision Variable Resistor Potentiometer Trimmer 504 500k ohm $12.50 |
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100x 3296 W High Precision Variable Resistor Potentiometer Trimmer 253 25k ohm $12.50 |
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5 pcs 3362 P High Precision Variable Resistor Potentiometer Trimmer 202 2k ohm $2.19 |
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5 pcs 3362 P High Precision Variable Resistor Potentiometer Trimmer 502 5k ohm $2.19 |
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5 pcs 3362 P High Precision Variable Resistor Potentiometer Trimmer 103 10k ohm $2.19 |
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5 pcs 3362 P High Precision Variable Resistor Potentiometer Trimmer 203 20k ohm $2.19 |
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5 pcs 3362 P High Precision Variable Resistor Potentiometer Trimmer 503 50k ohm $2.19 |
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5 pcs 3362 P High Precision Variable Resistor Potentiometer Trimmer 50 ohm $2.19 |
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5 pcs 3362 P High Precision Variable Resistor Potentiometer Trimmer 101 100 ohm $2.19 |
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5 pcs 3362 P High Precision Variable Resistor Potentiometer Trimmer 104 100k ohm $2.19 |
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5 pcs 3362 P High Precision Variable Resistor Potentiometer Trimmer 501 500 ohm $2.19 |
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5 pcs 3362 P High Precision Variable Resistor Potentiometer Trimmer 504 500k ohm $2.19 |
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100 pcs 3362 P High Precision Variable Resistor Potentiometer Trimmer 102 1k ohm $12.50 |
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100 pcs 3362 P High Precision Variable Resistor Potentiometer Trimmer 202 2k ohm $12.50 |
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100 pcs 3362 P High Precision Variable Resistor Potentiometer Trimmer 502 5k ohm $12.50 |
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100x 3362 P High Precision Variable Resistor Potentiometer Trimmer 103 10k ohm $12.50 |
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100x 3362 P High Precision Variable Resistor Potentiometer Trimmer 203 20k ohm $12.50 |
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100x 3362 P High Precision Variable Resistor Potentiometer Trimmer 503 50k ohm $12.50 |
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100 pcs 3362 P High Precision Variable Resistor Potentiometer Trimmer 50 ohm $12.50 |
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100x 3362 P High Precision Variable Resistor Potentiometer Trimmer 101 100 ohm $12.50 |
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100x 3362 P High Precision Variable Resistor Potentiometer Trimmer 104 100k ohm $12.50 |
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100x 3362 P High Precision Variable Resistor Potentiometer Trimmer 501 500 ohm $12.50 |
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100x 3362 P High Precision Variable Resistor Potentiometer Trimmer 504 500k ohm $12.50 |
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100 pcs 3386 P High Precision Variable Resistor Potentiometer Trimmer 202 2k ohm $16.50 |
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100 pcs 3386 P High Precision Variable Resistor Potentiometer Trimmer 502 5k ohm $16.50 |
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100x 3386 P High Precision Variable Resistor Potentiometer Trimmer 503 50k ohm $16.50 |
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100x 3296 W High Precision Variable Resistor Potentiometer Trimmer 502 5k ohm $12.50 |
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2) New Spectrol Precision Potentiometer 2kOhm 534-11202 $15.00 |
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Precision Potentiometers, 5%, Linear, 13pc. $20.00 |
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Bourns 3700S-1-502 5K WW 10Turn Precision Potentiometer $34.99 |
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Lot of (4) Bourns 3590S-1-103 Precision Potentiometers, 10 Turn, 10K $36.00 |
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5 pcs 3296 W High Precision Variable Resistor Potentiometer Trimmer 202 2k ohm $2.19 |
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LINEAR MULTITURN BORG PRECISION POTENTIOMETER 100 OHMS $24.99 |
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Precision Potentiometer +Knob 0,47 Kohm 0.47k ± 2% L0,3 $21.43 |
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BECKMAN HELIPOT PRECISION 10 TURN POTENTIOMETER S7286 R1K L.25 NIB LOT OF 1 $10.00 |
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ART Pro Channel Tube Mic Preamp and Compressor with EQ $270.99 The Pro Channel from ART is the latest offering from the world’s most popular tube dynamics processing manufacturer. ART engineers have combined the world-renowned Pro MPA, Pro VLA, and Tube EQ into a single product – creating the world’s best-sounding and most affordable professional recording channel.The Pro Channel features many new and exciting design enhancements to ART’s pro and home studio … |
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FP33 by Shure $1,314.64 Stereo Mic/Line Mixer for Field Use, (2) 9V Batteries or 12-30V DC… |
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IEC 60393-3 Ed. 2.0 b:1992, Potentiometers for use in electronic equipment – Part 3: Sectional specification: Rotary precision potentiometers $160.00 Applies to single-turn rotary precision potentiometers intended for use in electronic equipment and which may be either servo or manually operated…. |
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POTENTIOMETER HANDBOOK AN INFORMATIVE GUIDE FOR THE USERS OF PRECISION POTENTIOMETERS … |
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IEC 60393-3-1 Ed. 1.0 b:1992, Potentiometers for use in electronic equipment – Part 3: Blank detail specification: Rotary precision potentiometers. Assessment level E $120.00 Supplementary document to the sectional specification which contains requirements for style and layout and minimum content of detail specifications…. |