Large RF Coils

Edgewound Fixed Inductor
150 µH / 20 amp

(ICH) 3368-N5
EF Johnson edgewound fixed inductor. 150 µH, 20 amp. Includes silver connector strap. 10-1/2"D x 17"L. 3/8" wide ribbon. Used.
 

Edgewound Fixed Inductor
220 µH / 10 amp

(IRF) 110974
Multronics 7-1/2" diameter edgewound fixed inductor. Silver plated. 220 µH, 10 amp. 0.05" x 0.25" material (silver plated). 48 turns. 7-1/8" x 7-1/8" x 15-3/8".
$275 each
 
$350 each

Edgewound Inductor
23 µH / 20 amp

(IRF) 201-21-4
EF Johnson edgewound inductor. 23 µH, 20 amp. 7" diameter x 8-1/4" high. Used.
 

Edgewound Inductor
25 µH / 20 amp

(IRF) 500-204
CSP edgewound inductor. 25 µH, 20 amp. 7" diameter x 8-1/4" high, 3/8" wide ribbon. Used.
$175
 
$175

Fixed Inductor
26 µH / 30 amp

(IRF) 26-VC-2144
Gates fixed inductor. 26 µH, 30 amp. 6" x 6-1/2" x 10"L. 1/2" x 1/16" ribbon. Used.
 

Edgewound Inductor
65 µH / 20 amp

(ICH) 3286N5
EF Johnson edgewound inductor. 65 µH, 20 amp. 8"D x 12"L. 3/8" wide ribbon. Used.
$225
 
$165

Phasetek Inductor
70 µH / 50 amp

(IRF) 3286N5
Phasetek inductor. 70 µH, 50 amp. 1/2" diameter silver tubing. 13-1/4"D x 25" high.
 

Edgewound Inductor
82 µH / 10 amp

(IRF) EFJ82
EF Johnson edgewound inductor. 82 µH, 10 amp. 5"D x 12"L. 1/4" ribbon. Used.
$650
 
$125

Edgewound Fixed Inductor
21 µH

(IRF) 232-624-1
Cardwell edgewound fixed inductor. 21 µH. Silver plated stock. 5 turns per inch. 6" overall length. 5-3/4" outside diameter overall. Coil dimensions: 3.875" O.D., 3.275" I.D. 0.25" wide x 0.55" thick flat stock.
 

Gates RF Fixed Coil
78 µH / 30 amp

(IRF) 78-FC2568
Gates RF fixed coil. 78 µH, 30 amp. 7" diameter capacity disc inside coil is adjustable on 5" travel. 3/32" thick, 1/2" wide silver ribbon inductor. 24-3/4" total turns. Turn spacing is 3-3/4" t.p.i. (turns per inch). Overall dimensions: 9" x 9" x 16" long. Includes 1 tap clip.
$109 each
 
$385 each

Gates Transmitter Tank Circuit
5 - 12 MHz

(IRF) L15B
Gates transmitter tank circuit with coupling coil. 5 - 12 MHz. Outer coil = 7" O.D., 1/2" silver tubing, 12 turns. Inner coil = 5" O.D., 1/2" edgewound silver with taps, 5 turns. Overall dimensions: 18" x 11" x 15-3/4" high. New, old (and tarnished) stock.
 

Silver RF Tank Coil
1.8 µF

(IRF) CL143REVA
Silver RF tank coil. 1/4"D tubing. 1.8 µF. 7-1/4 turns, 3-1/8" O.D., 2-3/4" I.D. Taps at 1/2 turn, 2-2/3 turns, 4-1/4 turns, 6-1/2" strap. 6" strap, 4" strap, at end 5" strap. 3 studs, 10 - 24 for mounting. Straps have PTFE sleeving.
NSN: 5950-00-702-2936.
$350 each
 
$115 each

Edgewound Fixed Coil
24 µH / 30 amps

(IRF) 943-0398
Gates edgewound fixed coil. 24 µH, 30 amps. 20 turns, 1/2" wide silver plated coil with log-spacing. Coil dimensions: 6"D x 7-1/4"L. (9-3/8"L - total for unit, 8"D). Internal vacuum cap (not included). Mounting clamps (FM-2) for parallel "C" in LC unit. LC unit made for Gates transmitter. Includes arc gap. Gates P/N: 943-0398-002.
 

Fixed Edgewound Silver Coil
76 µH / 30 amps

(IRF) 76-FC-2568
Gates fixed edgewound silver coil. 76 µH, 30 amps. Coil material measures 3/32" x 1/2" wide. New, unused. Gates P/N: 931-6138-045.

Coil dimensions: 8-5/8"H x 9" dia.
Overall dimensions: 16"H x 12" dia.

$450 each
 
$385 each

Silver Air Wound Coil
0.4 µH

(IRF) 6032-1043
Silver air wound coil. 0.4 µH. 1-1/2" diameter coil, 3-3/4 turns. 1/2" wide strap. Sunair P/N: 6032-104303.
 

Edgewound Fixed Coil
5.5 µH / 15 kw

(IRF) 943-3777
Edgewound fixed coil. 5.5 µH, 15 kw. Includes 1 tap clip. 5" diameter coil, 6 turns. 1/2 copper - bore, 4 turns per inch. Harris IPA filter assembly. Gates P/N: 943-3777-007.
$22 each - $20 (3+)
 
$225 each

Silver Coil Tapping Clip

(IRF) .375CLIP
Silver coil tapping clip for 3/8" diameter silver tubing.
 

Large Silver Coil Clip
(with 2' of 5/8" Silver Strap)

(IRF) LG-CLIP
Large silver coil clip with 2 foot of 5/8" silver strap. 1/2" x 1-1/4".
*** SOLD OUT ***
 
$50

Silver RF Coil
18 µH / 5 kw

 

Silver RF Coil
26 µH / 5 kw

(IRF) 200-101-1
Cardwell silver RF coil. 22 turns of 1/4" silver plated flat stock, 4-1/2" diameter, 5-1/4" long coil. 4 turns per inch. 9" overall height. Great tank coil for RF circuit. Tap at any point for exact match. Mfg. P/N: MJ26-10.
$189 each

Silver RF Coil
15 µH / 15 kw

(IRF) 200-0125
Cardwell silver RF coil. 15 turns of 1/4" silver plated flat stock, 4-1/2" diameter, 3-5/8" long coil. 4 turns per inch. 7" overall height. Great tank coil for RF circuit. Tap at any point for exact match.
 
(IRF) 200-306-1
Multronics silver RF coil. 16 turns of 1/2" silver plated flat stock, 5" diameter, 4-3/4" long coil. 4 turns per inch. 9" overall height. Great tank coil for RF circuit. Tap at any point for exact match.
$165 each
 
$265 each

Silver RF Coil
20 µH / 20 amp

(IRF) 20-20A
16 turns of 3/8" silver plated flat stock, 4-3/4" diameter, 4-1/2" long coil. 8-1/4" overall height. Great tank coil for RF circuit.
 

Silver RF Coil
200 µH / 5 kw

(IRF) C35-13510
Silver plated coil similar to above is replacement inductor for military auto tuner. Taper wound low end. Large gauge silver wire. 4" diameter x 24" long. Wound on fiberglass form with 7" diameter aluminum flange on one end.
$175 each
 
$175 each

Silver RF Coil
1 mH / 5 kw

(IRF) 10X1121
Silver plated coil appropriate for loading 160 meters or VLF frequencies with 1 mH total inductance. 5-1/2" diameter, 20" long. Wound on fiberglass form. Has 14 ga. wire. Should handle 5 kw +. Fiberglass core. Weighs: 7 pounds.
 

Tank Coil

(IRF) STP150128
Tank coil. 3/8" silver tubing. 4 large turns + 1 small. 4" outside diameter.
$125 each - $110 (5+)
 
$92 each

Silver Tank Strap

(IRF) 151168
Silver tank strap. 0.4" outer diameter. 4-1/2" c-c holes. 6-3/8" overall length.
 

Silver Tank Coil

(IRF) SRSTANK
4-1/2" outer diameter silver tank coil. 0.35" x 0.8" flat stock. 1.5 turns. Broadcast tank. Made for SRS broadcast transmitter.
$23 each
 
$103 each

Silver Tank Coil

(IRF) 151955
4-1/2" outer diameter silver tank coil. 0.67" round stock. 1.5 turns. Broadcast tank. Made for SRS 10 kw transmitter.
 

Silver Tank Coil

(IRF) 150127
4-1/4" outer diameter silver tank coil. 0.40" round stock. 2-1/2" turns. Broadcast tank. Made for SRS 10 kw transmitter.
$107 each
 
$83 each
 
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