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RF and Microwave Components Online Catalog

 

Inductors, Fixed

Reference: L1

Description: Photo shows 3 coils in various positions with US quarter coin for size reference.

We have a large quantity of these fixed inductors for sale. These inductors are wound of 15 turns of silver-plated wire, approximately #12 or #14, and are on high-quality ceramic forms of 1 inch diameter. They measure approximately 3 microhenries.

Our stock # L1, Price: $1 each (Order Now!)


Reference: L2

Description: Photo shows 3 coils in various positions with US quarter coin for size reference.

We have a large quantity of these air-core inductors for sale. These inductors consist of 5 turns of silver plated wire, approximately #12. Each has silver plated mounting lugs on each end. The coils measure about 1 microhenry, and were used in high-end military transmitters.

Our stock # L2, Price: 75 cents each! (Order Now!)


Reference: L3

Description: Photo shows 3 coils in various positions with US quarter coin for size reference.

We have a good supply of these fixed inductors for sale. These inductors are wound on highest quality ceramic forms, 1 inch diameter. The wire is approximately #18, (11 turns) and the coils measure 3.4 microhenries full length, with a tap at the halfway point.

Our stock # L3, Price: 50 cents each! (Order Now!)


Reference: L4

Description: Photo shows 5 of the "short bracket" chokes in foreground and 3 of the "tall bracket" chokes in rear in various positions. US quarter coin shown for size reference.

We have a large supply of these chokes available. These were used in Collins military radio transmitters as plate chokes. These transmitters used three 4CX250B tubes each. The "short bracket" coils measure about 135 microhenries, and have a center tap. The "tall bracket" coils measure about 130 microhenries, and have no center tap. Both are wound on high-quality 3/4" OD ceramic forms.

Our stock # L4, Price: $5 each (Order Now!)


Fixed inductor, 21 microhenry - Reference:  L6

Fixed inductor, 21 microhenry. This inductor consists of 18 turns of plated copper wire, (about 16 gauge) wound over a grooved form of ferrite or powdered iron to increase inductance. The form is 1.5 inches in diameter, and one is shown in the photo, removed from mount and with wire removed for illustration. The core and coil are enclosed in a frame of G-10 fiberglass which measures 2 inches X 2 inches X 2 inches. The core has a hole through the center, about 3/8 inches in diameter. These are mil-spec, removed from military equipment. Sprayed with a light coating of protective varnish for service in extreme environments. Weight is 295 grams, 10.5 ounces. Marked: 80045 ASSY  357630

Our stock # L6,      Price: $6 (Order Now!)


Fixed inductor, 98 microhenry - Reference:  L8

98 microhenry fixed inductor, Dale part # 2497655-4. These fixed inductors are made with approximately 16 gauge enameled copper wire, wound over a core of ferrite or powdered iron, then held in place with an over-wrap of heat shrink (orange color).

They measure a very consistent 98 microhenries, and should be good for about 10 amps continuous (estimated).

Length is 1.625 inches, diameter is approximately 1.125 inches. Condition is new / unused.

Our stock # L-8,    Price: $3 each (Order Now!)


Ferrite core inductor - Reference:  L-15

These inductors are wound over ferrites that measure 1 inch O.D. X 1/2 inch I.D. X 5/16 inch wide. The inductance measures an average of 3.6 microhenries (all measure very close). These were removed from medical equipment operating at 13.56 Mhz, so they should be suitable for HF use. The wire used is silver plated solid copper with Teflon insulation.     

Our stock # L-15, Price:  $2 each (Order Now!)


Fixed inductor, .8 microhenry

These inductors are 1 inch diameter, 3 turns of silver-plated solid wire of .0625 inch measured thickness. (A very little under 14 gauge standard thickness of .0641 inches). Wound over highest quality fiberglass composite spacers in both planes, with Teflon inserts. Has mounting holes in each end of one plane. Inductance measured at .8 microhenries.

Our stock # L-16, Price each:   $2.00 (Order Now!)


Fixed inductor, 1.2 microhenry

These inductors are 1 inch diameter, 5 turns of silver-plated solid wire of .0625 inch measured thickness. (A very little under 14 gauge standard thickness of .0641 inches). Wound over highest quality fiberglass composite spacers in both planes, with Teflon inserts. Has mounting holes in each end of one plane. Inductance measured at 1.2 microhenries.

Our stock # L-17           Price each:   $2.00 (Order Now!)


Fixed inductor, 1.4 microhenry

These inductors are 1 inch diameter, 6 turns of silver-plated solid wire of .0625 inch measured thickness. (A very little under 14 gauge standard thickness of .0641 inches). Wound over highest quality fiberglass composite spacers in both planes, with Teflon inserts. Has mounting holes in each end of one plane. Inductance measured at 1.4 microhenries.

Our stock # L-18           Price each:   $2.00 (Order Now!)


Fixed inductor, 1.5 microhenry

These inductors are 3/4 inch diameter, 8 turns of silver-plated solid wire of .0625 inch measured thickness. (A very little under 14 gauge standard thickness of .0641 inches). Wound over highest quality fiberglass composite spacers in both planes, with Teflon inserts. Has mounting holes in end of one plane. Inductance measured at 1.5 microhenries. Length 1.5 inch.

Our stock # L-19           Price each:   $3.00 (Order Now!)


Fixed inductor, 2 microhenry

These inductors are 3/4 inch diameter, 15 turns of silver-plated solid wire of .0625 inch measured thickness. (A very little under 14 gauge standard thickness of .0641 inches). Wound over highest quality fiberglass composite spacers in both planes, with Teflon inserts. Has mounting holes in end of one plane. Inductance measured at 2  microhenries. Length 2.25 inch.

Our stock # L-20           Price each:   $3.00 (Order Now!)


Fixed inductor,  dual winding,  2.5 microhenry

These inductors are 1.6 inch diameter, 5 turns, PLUS 4 turns of 3/4 inch diameter wound on the inside of the larger coil, of silver-plated solid wire of .0625 inch measured thickness. (A very little under 14 gauge standard thickness of .0641 inches). Wound over highest quality fiberglass composite spacers in both planes, with Teflon inserts. Has mounting holes in both ends of one plane. Inductance measured at 2.5 microhenries. Length 1.5 inch.

Our stock # L-21           Price each:   $4.00 (Order Now!)


Fixed inductor,  dual winding,  3.8 microhenry

These inductors are 1.6 inch diameter, 7 turns, PLUS 7 turns of 3/4 inch diameter wound on the inside of the larger coil, of silver-plated solid wire of .0625 inch measured thickness. (A very little under 14 gauge standard thickness of .0641 inches). Wound over highest quality fiberglass composite spacers in both planes, with Teflon inserts. Has mounting holes in both ends of one plane. Inductance measured at 3.8 microhenries. Length 2 inches.

Our stock # L-22           Price each:   $5.00 (Order Now!)


Fixed inductor,  dual winding,  7.4 microhenry

These inductors are 1.6 inch diameter, 11 turns, PLUS 12 turns of 3/4 inch diameter wound on the inside of the larger coil, of silver-plated solid wire of .0625 inch measured thickness. (A very little under 14 gauge standard thickness of .0641 inches). Wound over highest quality fiberglass composite spacers in both planes, with Teflon inserts. Has mounting holes in both ends of one plane. Inductance measured at 7.4 microhenries. Length 3 inches.

Our stock # L-23           Price each:  $5.00 (Order Now!)


Fixed inductor,  ceramic form,  8 microhenry

These inductors are 3/4 inch diameter, 22 turns,  of silver-plated solid wire of .020 inch measured thickness. (About 24 guage)). Wound over highest quality grooved ceramic form. Has mounting holes in both ends. Inductance measured at 8 microhenries. Length 2 inches. Grooves extend much further than this coil currently uses, if you wish to re-wind. Coil form also has several holes for wire pass-through in various locations, making this an excellent multi-use form. Coil currently has taps at 3, 5, and 11 turns. (Short lengths of Teflon hookup wire are left on for easy use if desired.)

Our stock # L-24           Price each:   $2.00 (Order Now!)


 

 

4 Fixed inductors on PC board

NSN:                                      5950-01-231-2261
Manufacturer:                        Rockwell Collins, Inc.
Manufacturer's Part #:           652-6237-001
Coil Information:                   
      Coil #1:       51 turns, 1.16 in. (29.47 mm) Outer Diameter, 29 microhenries
      Coil #2:       26 turns, 1.285 in. (32.66 mm) Outer Diameter, 15 microhenries
      Coil #3:       27 turns, 0.851 in. (21.62 mm) Outer Diameter, 7.7 microhenries
      Coil #4:       16 turns, 0.852 in. (21.64 mm) Outer Diameter, 4.2 microhenries
      Leads:         8 leads, two leading from each of the 4 inductor coils; 0.041 in. diameter, approximately 18 AWG gauge 

Mounting:   4 mounting holes, two on the side of the 16-turn coil (the fourth coil on the board) and two on either side of the 26-turn coil (the second coil on the board) 

Important Dimensions:
          Max Length:              4.82 in. / 122.43 mm.
          Max Width:               2.83 in. / 71.90 mm.
          Max Height               1.34 in. / 34.05 mm.
          Weight                      4.0 oz. / 113.40 g.

Our stock # L-25           Price each:   $15.00 ( Order Now! )


Reference: PC1

Description: Photo shows 3 chokes in various positions with US quarter dollar coin for size reference.

We have a large supply of these plate chokes available. These came out of military transmitters, but We do not know any of the specifics about these transmitters. They measure about 350 microhenries, and are wound on high-quality G-10 fiberglass rod....NOT on bakelite.

Price: $5 each (Order Now!)


REFERENCE: PC-2

We have good quantity available of these nice plate choke assemblies, removed from military HF transmitters. The transmitters used a pair of 4CX250B tetrodes.

Components on each board include:

  • Ohmite Z-14 choke or equivalent, measured at 45 microhenries.
  • 2 pf, 5 kv (axial leads) ceramic capacitor, .005 microfarad, 3 kv ceramic disc capacitor.
    ****(A ceramic "doorknob" capacitor, shown on most of the units in the photo, is NOT included .)
  • Two parasitic chokes, each consisting of a 47 ohm, 1 watt carbon resistor with 3 turns of plated wire.
  • Numerous other small components.

All items mounted on a high-quality glass-epoxy board. Several items are secured to board with adhesive. Photo shows several boards in various positions with a US quarter dollar coin for size reference.

Price: $6 each (Order Now!)

 


Ordering:

To order, use our secure online order form, or call us Monday through Friday 7 AM - 4 PM Eastern time at 770-973-6251.

You may also print the order form using your browser's print button and fax your order to us at 815-461-7730. PLEASE give us your email address so that we can easily contact you in case we have a question.

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RF and Microwave Components Online Catalog
 

 

 

 

 

 

 

 

 

 

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inductor, fixed inductor,  coils, radio coils, transmitter coils, transmitter inductors, inducters, mil-spec inductors, used inductors


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