Shaft couplings, shafts, ceramic insulators, ceramic plate caps
Shaft Coupling, 1/4 inch to 1/4 inch
Material: Heavy Nickel Plated Brass
Set Screws: 3/32 Hex (Hex L-Key available at additional cost)
Number of Set Screws: 2
Length: .75 in
Outer Diameter: .496 in
Inner Diameter: .255 in
Refer to our stock # SC-01
Price: $3.00 each (Order Now!)
Buyer's Note!!! If you require a 3/32 in. Hex L-Key in addition to your coupling, order one for an additional $1.00. For this combo, use stock #SC-01-LK (Order Now!)
Deluxe Shaft Coupling, 1/4 inch to 1/4 inch
Material: High Gloss, Nickel Plated, Solid Brass Body
Set Screws: Stainless Steel, 2.5 mm Hex. A 3/32 in. Hex key will work as well, though with slightly loose fit. (Hex L-Key available at additional cost)
Number of Set Screws: 2
Length: .748 in.
Outer Diameter: .501 in.
Inner Diameter: .251 in.
Refer to our stock # SC-02
Price: $4.00 each ( Order Now! )
Buyer's Note!!! If you require a 3/32 in. Hex L-Key in addition to your coupling, order one for an additional $1.00. For this combo, use stock #SC-02-LK ( Order Now! )
Vernier Reduction Drive, 1/4 inch to 1/4 inch
Set Screws: Phillips head set screws
Number of Set Screws: 2
Turn ratio: 6:1
Length: 1.5 in / 38.1 mm
Diameter: 1.0625 in / 26.98 mm
Max width: 1.437 in / 36.51 mm
Mounting: 1.125 in / 28.575 mm
Refer to our stock # VERN-01
Price: $12.00 each (Order Now!)
We have original, mil-spec ceramic plate caps for a well-insulated HV plate connection to many different tube types. These are all removed from older military equipment, and have short clipped leads. The leads easily unsolder for your new connection.
Two sizes available:
SMALL fits tubes with plate cap diameters slightly under 7/16", such as the 6146, 6LF6, 6LQ6, 8950, etc. (Sorry, OUT OF STOCK on the small size.)
LARGE fits tubes with larger diameter plate caps slightly under 5/8" diameter, such as the 813, 811A, 572B, 866, 810, and 833.
Most made by James Millen Company, but some by others, such as National. All finest quality, mil-spec. All in excellent shape, satisfaction always guaranteed.
Refer to our stock #CPC-1; Price: $2 each (Order Now!)
Ceramic "Dogbone" Strain Insulator
Strain insulators are perfect for insulating wire antennas, such as dipoles.
Ribbed center increases the "apparent length" which improves insulation ability.
Material: Genuine glazed ceramic (not cheap plastic!)
Number of Holes for Running Wire: 2
Inner Diameter of Holes: 0.296 in / 7.54 mm
Distance Between Holes (on center): 1.489 in / 37.82 mm
Number of Ribs: 3 (with indentations on either side of each rib)
Length: 2.48 in / 63 mm
Max Diameter: 0.956 in / 24.3 mm
Weight: 1.9 oz / 53.86 g
Refer to our stock # DOGBONE-IN-01
Price: $1.00 each or 6 for $5.00 ( Order Now! )
Feed Through Insulator, High Voltage, Ceramic
Manufacturer's Voltage Spec: Unknown
Max-Gain Systems Bench Testing Results 14 KV (before any leakage detected)
Screw length: 2.095 in
Screw Diameter: .183 in
Ceramic Outer Diameter .755 in
Ceramic Inner Diameter (Mounting Hole) .384 in
Refer to our stock # FT-IN-01
each ( Order Now! )
High Voltage Mica Insulating Washers
We have obtained a supply of these GENUINE MICA high voltage insulating washers. This very hard to find item measures .875 inch outside diameter and .250 inch inside diameter. Thickness of multiple samples were measured, and they measured from .0085 inch to .0095 inch thick. Using the thinnest measurement, .0085", based on the "average puncturing voltage" table for the mineral mica, from the American Institute of Electrical Engineers website, each washer should withstand in excess of 8,000 volts! Of course, you can "stack" multiple washers for increased voltage ratings.
Order as our stock # HVW-1
Price: 8 for $1.00 (Order Now!)
Fiberglass insulating rods
We get many requests from equipment builders for our fiberglass solid rods in short lengths. These rods are of course EXCELLENT high voltage insulators, will not rust, are light, RF transparent, and waterproof. We are now offering one foot lengths of several diameters of our most popular sizes for only $1 each! (your choice of sizes!)
Rods may be supplied in either white or black color (our choice) but if you have a color preference, specify, and we will try to supply your preference if available.
- 1/8 inch diameter X 1 foot long, order stock # FSR-1/8
- 3/16 inch diameter X 1 foot long, order stock # FSR-3/16
- 1/4" diameter X 1 foot long, order stock # FSR-1/4
- 5/16 inch diameter X 1 foot long, order stock # FSR-5/16
- 3/8 inch diameter X 1 foot long, order stock # FSR-3/8
- 1/2 inch diameter X 1 foot long, order stock # FSR-1/2
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.
Visa and Mastercard accepted!
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