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16.4mH / 1.1 Ohm Air-Core Copper Coil (Soft Iron Magnetic Core Included), US $66.00 – Picture 0
16.4mH / 1.1 Ohm Air-Core Copper Coil (Soft Iron Magnetic Core Included), US $66.00 – Picture 1
16.4mH / 1.1 Ohm Air-Core Copper Coil (Soft Iron Magnetic Core Included), US $66.00 – Picture 2
16.4mH / 1.1 Ohm Air-Core Copper Coil (Soft Iron Magnetic Core Included), US $66.00 – Picture 3
16.4mH / 1.1 Ohm Air-Core Copper Coil (Soft Iron Magnetic Core Included), US $66.00 – Picture 4
16.4mH / 1.1 Ohm Air-Core Copper Coil (Soft Iron Magnetic Core Included), US $66.00 – Picture 0
16.4mH / 1.1 Ohm Air-Core Copper Coil (Soft Iron Magnetic Core Included), US $66.00 – Picture 1
16.4mH / 1.1 Ohm Air-Core Copper Coil (Soft Iron Magnetic Core Included), US $66.00 – Picture 2
16.4mH / 1.1 Ohm Air-Core Copper Coil (Soft Iron Magnetic Core Included), US $66.00 – Picture 3
16.4mH / 1.1 Ohm Air-Core Copper Coil (Soft Iron Magnetic Core Included), US $66.00 – Picture 4

16.4mh / 1.1 Ohm Air-core Copper Coil (soft Iron Magnetic Core Included)

US $66.00

  • Stockton, California, United States
  • Jan 29th
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ELMA 1.1 Ohm, 16.4mH  SOLENOID Model 696770 For Audio Crossovers, Powerful Electromagnets (using core included), Inductive Energy storage  Completely waterproof. Will take more than 15A for moderate periods (that's 6000Aturns of magnetic force !) Wildly powerful electromagnet !  (Power with 12vdc Auto Battery) Measured L = 16.4  mH Measured R =   1.1 Ohm Measured Weight   3.94kg = 8.68 lbs   (assume wire weight = 7-8 lbs) Measured Physical Size: HEIGHT =   10.6 cm OD = 12.0 cm ID =     7.6 cm Approximate Solenoid Coil Dimensions (inside the epoxy): Length = 9.8cm Diameter = 9.7cm Using "Long Solenoid" equation,  L = µN2?r2/length,  where  µ=1 (air) Solenoid Length = 9.8cm Solenoid Diameter = 9.7cm, Solenoid r = 4.85 cm Solenoid A = ?r2= 74.90cm2  We Calculated:    N = 416 turns,  Wire length = ? x 9.8 x 416 = 127m = 416ft  Wire length = 416 x  9.7 x ? = 127m = 416ft 1.1 Ohm/416ft = 0.26 Ohm/100ft. L (measured) = 16.4mH We estimate:  Gage = 14ga (2.58ohms/1000ft), or possibly 13 gage As a reminder, magnet wire, ALONE, sells at around $6/lb, or, say $50 for this unit
Condition Seller refurbished :
An item that has been restored to working order by the eBay seller or a third party not approved by the manufacturer. This means the item has been inspected, cleaned, and repaired to full working order and is in excellent condition. This item may or may not be in original packaging. See the seller’s listing for full details.
Seller Notes “Thermal Conducting Epoxy Impregnated copper coil tested and guaranteed working”

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