Tuning Slugs & Miscellaneous Coil Forms
Edgewound Coil Support
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(ICF) 821-0776-002
Sunair edgewound coil support. Composite fiberglass insulator. 13"L x 1-1/4" x 3/8". Slots measure: 0.111"W x 0.14" deep. 0.313" centers on slots. Slotted winding area measures 8-7/8"L.
$18 each - $16 (5+)
Ferrite Tuning Slug for Rack
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(ICH) SLUG-7
Ferrite tuning slug for rack. #4 - 40 lead screw. 0.195"D x 1.505"L + tuning screw 0.613"L.
$1.75 each - $1.50 (10+), $1.25 (25+)
Complete Engineering Set of
Powdered Iron Slugs for RF Coils
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(ICH) SSLUGS
Stackpole Carbon Co. complete engineering set of powdered iron slugs for RF coils. 40 different types with 10 - 15 per tube. Various grades, screw sites & body diameters. We suspect Circa 1940's.
$350 each
HF Ferrite
Tuning Slug
(ICH) SLUGRK-3
HF ferrite tuning slug. HF mix. This was made for and used exclusively in Scientific Radio HF equipment produced in the 1980's. 0.500" diameter, 2.50" long + brass adjuster. 6-32 slotted brass adjuster. Use (ICF) FORM-P10 for coil form.
$8 each - $7.40 (3+)
Fiberglass Insulator Tube
(ICF) AD-9371-1
Fiberglass insulator tube. Very tough! Perfect for winding coil / choke. 6-3/4" x 7/8" O.D. x 3/4" I.D. NSN: 5970-01-349-3617.
$3 each - $2.50 (10+)
Phenolic Coil Form
(ICF) PH1-750
Phenolic coil form. 1/8" winding tie-off holes, 2 at top, 4 at bottom. 1-7/8" outside diameter, 1-5/8" inside diameter, 3-5/8" long. Very stout!!
$5.75 each - $5.25 (10+), $4.80 (25+)
Phenolic Coil Form
(ICF) 83-1K
Amphenol phenolic coil form. 24 turns, 8 t.p.i. 1-1/4"D x 4-5/16"L. Amphenol P/N: 83-1K on original carton.
$15 each
Vector Stand-Off
(COL) VECTOR1
Turret post as used in most Collins tube equipment. Replace vectors with broken legs.
$5 each
Straw Coil Forms for Tuning Slugs
Plasticized paper coil forms purchased from Collins. These were used in conjunction with a powered iron slug in many vacuum tube radios from 1960-1980's.
(ICF) STW-2
1/4" inner diameter, 0.265" outer diameter. 2.745" long.
60¢ each
(ICF) STW-2.5
1/4" inner diameter for 1/4" slug, 2.5" long.
$1 each - 80¢ (10+), 65¢ (25+), 50¢ (100+)
(ICF) STW-3
3/32" inner diameter for 5/32" slug, 1/2" long.
10¢ each
(ICF) STW-5
1/4" inner diameter for 1/4" slug. 0.281" outer dia. 2.31" long.
$1.25 each
(ICF) STW-6
1/4" inner diameter for 1/4" slug. 0.281" outer diameter.
1.81" (1-13/16") long.
$1 each
Paper Coil Form
(ICF) FORM-P10
10-3/4" long, 9/16" diameter varnished split tube grooved @ 2-3/4 t.p.i.
$2.50 each
(ICF) FORM-P7
7-3/4" long
$2 each
Ferrite Slug
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(ICH) 112009
Ferrite slug. 43 material. Hex thru-hole. 1/4" x 0.389"L.
50¢ each - 42¢ (10+), 30¢ (100+)
Phenolic Coil Forms
Slug Tuning Rack Coils
Variable Pitch
Part Number Slug Inductance Price  
(ICF) SRC-1 1/4" 0.51 µH SOLD OUT
(ICF) SRC-2 1/4" 0.75 µH SOLD OUT
(ICF) SRC-3 1/4" 1.38 µH 3.00 Add
(ICF) SRC-4 1/4" 2.58 µH 3.00 Add
(ICF) SRC-5 1/4" 2.66 µH 3.50 Add
(ICF) SRC-6 1/4" 6.45 µH 4.50 Add
(ICF) SRC-7 5/32" 1.52 µH SOLD OUT
Tuning Slugs
Part Number Material Size Adjustment Price Each Price (10+) Price (100+)  
(ICH) TH27-0103 Ferrite, 8-32 0.155" x 0.435" Slot 0.45 0.35 0.25 Add
(ICH) SLUG-1B Ferrite, 6-32 1/8" x 3/16" Slot 0.35 0.25 0.15 Add
(ICH) SLUG-2 Steel 3/16" x 3/8" Hex 0.30 0.23 0.15 Add
(ICH) SLUG-3 Ferrite - white 1/4" x 3/8" Hex - - SOLD OUT
(ICH) SLUG-4 Ferrite - red 1/4" x 3/4" Hex - - SOLD OUT
(ICH) SLUG-4A Ferrite - red 1/4" x 3/8" Hex - - SOLD OUT
(ICH) SLUG-4B Ferrite - red 1/4" x 0.255" Hex 0.60 0.50 0.35 Add
PTFE Coil Form
(ICF) TEF-4
1-1/4" outer diameter (1-1/2" outer diameter @ flange), 3-5/8" long. 1/8" wall. Wind your own HV coil.
*** SOLD OUT ***